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Contents 
Introduction 
Difference b/w Qualitative & Quantitative research 
Uses of Qualitative research 
Steps in designing a qualitative study 
Qualitative research methods 
Data analysis in Qualitative research 
Sampling methods in Qualitative Research 
Combining qualitative & quantitative methods
Consists of an investigation that: 
seeks answers to a question 
systematically uses a predefined set of procedures 
to answer the question 
collects evidence 
produces findings that were not determined in 
advance 
produces findings that may be applicable beyond 
the immediate boundaries of the study
RESEARCH 
QUANTITATIVE MIXED QUALITATIVE 
APPLIED 
STUDY 
TRADITIONAL 
QUALITATIVE STUDY
Includes collecting, analyzing, and interpreting data by 
observing what people do and say. Qualitative research 
refers to the meanings, concepts, definitions, 
characteristics, metaphors, symbols, and descriptions of 
things. 
Historical background 
Qualitative research has its root in anthropology, 
philosophy & sociology 
First used by anthropologist & sociologist as a method of 
inquiry in early decades of 20th century
What is ? 
It seeks to understand a given research problem or 
topic from the perspectives of the local population it 
involves. 
Qualitative research is especially effective in obtaining 
culturally specific information about the values, 
opinions, behaviors, and social contexts of particular 
populations. 
The Scope of Qualitative Research is to explore & 
understand through 
1. Participant’s ‘Lived experience’ 
2. “Insider’s” perspectives 
3. In the Context of the given situation
Characteristics of Qualitative research 
Concerned with generation of hypothesis, not with testing 
Problems & methods tend to evolve over course of study 
Phenomena are examined from participants perspectives 
Only a few participants are involved in the study 
Focuses on a holistic view of what is being studied 
(via documents, case histories, observations and 
interviews) 
Concerned with the changing and dynamic nature of 
reality 
Concentrate upon exploring the rationale of beliefs, 
attitude 
& behaviour 
Not based on measures of quantity or frequency
Characteristics of Qualitative research 
Emphasis is given to meanings, expressions & 
experience of all the participating individual, each 
individual perception should be given equal importance 
Emphasis on observation and interpretation. 
Aim is to see the world through the eyes of the subjects. 
This requires that data collection are relatively open & 
unstructured 
Data are collected within the context of their natural 
occurrence 
Findings are described in words rather than numbers
When 
not to 
use QR 
Results are to be 
projected to the 
total population 
When numbers are 
needed to make a 
decision (what 
proportion of people ) 
To identify the 
important problem to 
be solved at 
community/ local/ 
policy levels 
To inform what people 
are doing, thinking, 
and saying about a 
problem 
Generate a list of 
options for 
interventions 
To investigate how 
best to implement 
promising 
interventions 
When 
QR to 
be used
Functions Of 
1. Developing and delineating program elements 
before a quantitative evaluation 
2. Generating theory 
3. Boosting the power of quantitative design& 
Broadening the observation field 
4. Analyzing process and individual cases to 
explain the how and why of an outcome.
What can we learn from 
? 
Its strength lies in its ability to provide complex 
textual descriptions of how people experience a 
given research issue. 
provides information about the “human” side of an 
issue 
It help us to interpret and better understand the 
complex reality of a given situation and the 
implications of quantitative data.
Forms Of Qualitative 
Data 
Field Notes 
Audio- Video 
Recordings 
Diagrams 
Of: 
•Participant 
Observations 
•Observations 
made during 
FGDs& In- Depth 
Interviews 
Of: 
• Focused 
Group 
Discussions 
• In- Depth 
Interviews 
E.g. 
Sociograms
Difference between 
qualitative and quantitative research
1. Seek to confirm hypotheses 
about phenomena 
2. Use highly structured 
methods such as 
questionnaires, surveys& 
structured observation 
3. To quantify variation 
4. To predict causal 
relationship 
5. To describe characteristics 
of a population 
1. Seek to explore phenomena 
2. Use semi-structured methods 
such as interviews, focus 
groups, and participant 
observation 
3. To describe variation 
4. To describe& explain 
relationship 
5. To describe individual 
experiences& group norms
6. Closed- ended 
7. Numerical (obtained by assigning 
numerical values to responses) 
8. Study design is stable from 
beginning to end 
9. Participant responses do not 
influence or determine how and 
which questions researchers ask 
next- Researcher is limited by the 
Questionnaire 
10. Study design is subject to 
statistical assumptions and 
conditions 
6. Open- ended 
7. Textual (obtained from audiotapes, 
videotapes, and field notes) 
8. Some aspects of the study are 
flexible 
9. Participant responses affect how 
and which questions researchers 
ask next- Researcher may use 
probes 
10. Study design is iterative, that is, 
data collection and research 
questions are adjusted according 
to what is learned
Example: 
Close Ended Questions 
Do you give OPV to your child 
during PPI rounds? 
Yes, Always 
No, Never 
Sometimes/Occasionally 
Most of the times 
Example: 
Open Ended Questions: 
What are your opinions 
about giving OPV to 
children, during PPI rounds? 
Probe: Why do you think 
that giving OPV can harm 
your child?
Example: 
Smoking and lung cancer 
Epidemiological/ Quantitative research establishes the 
association b/w smoking and lung cancer 
Qualitative methodology helps to explain: 
◦ Reasons why people continue to smoke despite the evidence 
◦ Social meaning of smoking (e.g. among women and the youth) 
Qualitative Research seeks to discover meaning and build 
theory 
◦ Why do girls take up smoking? 
Quantitative Research seeks to test and refine theory: 
◦ What is the relative importance of age, class, and family type as 
predictors of girls taking up smoking ?
1. Establish the general problem to be investigated 
◦ Of interest to the researcher 
2. Stating the purpose of the study 
◦ Based on problem analysis 
◦ Arises from previous studies 
◦ Guided by literature review 
◦ Determined by who will use the research results 
3. Develop a conceptual/theoretical framework for the 
study 
4. Formulate general and specific research questions 
(aims and objectives) 
5. Select a qualitative research design
6. Select a sampling strategy 
◦ Establish site of the research 
◦ Selection of participants 
7. Ensure trustworthiness of the study 
8. Determine data collection methods and develop 
data collection tools 
9. Establish how data will be managed and analyzed 
10. Interpretation and discussion of findings 
11. Prepare research report
Methods 
1. Observational methods 
Participant observation 
Non -Participant observation 
2. Interview techniques 
Structured 
Semi-structured 
Unstructured 
3. Focus group discussions 
(FGDs) 
4. Case studies 
5. Sorting & ranking methods 
6. Personal documents & 
Accounts 
Diaries 
Critical incidents 
Stories 
7. Projective techniques 
Free word association 
Sentence completion 
Story completion 
Cartoon completion 
8. Other methods
A qualitative research method in which researchers 
gather data either by observing or by both observing and 
participating, to varying degrees, in the study-community’s 
daily activities, in community settings 
relevant to 
the research questions. (Example at bars, brothels, 
waiting areas, religious settings) 
Approach the participants in their own environment 
Don’t leak out secrets! 
Take Field notes
Complete observer 
Behind one-way mirror, invisible role 
Observer as participant 
Known, overt observer 
Participant as observer 
Pseudo-member, research role known
It provides Familiarity with the cultural milieu 
It can Uncover The Unknown Factors- provide information 
previously unknown to researchers that is crucial for 
project design, data collection& interpretation of other 
data. 
But: 
It is Time- consuming 
Memory based, 
Inherently Subjective so, Practice to be objective rather 
than narrating subjectively.
Determine the purpose of the participant observation 
activity as related to the overall research objectives and the 
population(s) to be observed. 
Select the site(s), time(s) of day, and date(s) 
Decide how field staff will pair off to cover all sites most 
effectively. 
Consider how you will present yourself in terms of 
appearance and explain your purpose to others if 
necessary. 
Plan how you will take notes during the participant 
observation activity.
Schedule time soon after participant observation to 
expand your notes. 
Type your notes into computer files using the standard 
format set for the study
A qualitative research method in which a 
researcher/interviewer gathers data about an 
individual’s perspectives on a specific topic(s) 
The researcher/interviewer engages with the individual 
by posing questions in a neutral manner, listening 
attentively to responses, and asking follow-up questions 
and probes based on those responses.
Interview techniques 
1. Structured interviews: Impose fixed structure on ordering 
& wording of questions & categories for coding response 
2. Semi-structured 
Less rigid than structured 
Respondents asked a series of open ended questions and 
answers are recorded in full. 
Interviewer is free to probe to amplify & clarify responses 
and follow up any interesting idea or to delete any 
question 
3. Unstructured : Minimal influence on the structure of 
schedule(In-depth interview)
Types Of Questions 
Experience and behavior questions 
Opinion and value questions 
Feeling questions 
Knowledge questions 
Background/demographic questions
Purpose Of Interviews 
It help us to Elicit 
◦ Feelings 
◦ Thoughts 
◦ Opinions 
◦ Previous experiences 
◦ The meaning people give to certain events
Advantages Disadvantages 
Emic perspective 
Facilitate rapport 
More appropriate in rural 
setting 
Responses more valid 
Explanatory tool 
• Replicability difficult 
• Time consuming 
• Results not strictly 
comparable 
• Require familiarity with 
language and culture
Steps in conducting in-depth interview 
1. Plan how to conduct the in-depth interview 
Planning decisions & preparations. Includes 
Designing the study, 
Identify target group, 
Preparing for the field work, 
Collecting & analyzing 
2. Decide who the respondents will be 
Determine who to select for the interviews 
Example - To identify representative mothers of children under 
age 5 recently treated for ARI 
Contact selected health facility 
Get list of children under age 5 treated for ARI 
Decide on no. of mothers to be interviewed 
Contact & arrange for interviews
Steps in conducting in-depth interview 
3. Prepare interview guide 
 Framing the questions 
List the most important topics to be explored in the study 
Example 
• Overuse of antibiotics for ARI, 
• Specific topics like antibiotics used, symptoms associated, reason for prescribing 
antibiotics for common cold , reported pt. preference etc. 
Identify relevant subtopics for each study topics 
Belief about respiratory infections 
Efficacy of antibiotics in treating infections
Steps in conducting in-depth interview 
Check each question against the overall study questions & 
remove those that are not needed 
Ensure questions are 
Clear & unambiguous 
Simple & easy to understand 
Not answerable by simple yes or no 
Reasonable & within the experience of the respondents 
Construction of probes 
Probes are devices used to prompt a respondent to 
speak further when an initial question fails to elicit the 
desired information 
Sequence of topics
Steps in conducting in-depth interview 
4. Select interviewers 
Role of interviewer is to keep discussion going by asking 
useful questions until he gets an appropriate answer 
Qualities include self confidence, ability to establish 
rapport, articulate, ability to probe 
5. Train the interviewers 
Duration of training : depends on size of study & caliber 
of team. May take 2-3 days 
Training session should include both theoretical & 
practical aspects
Steps in conducting in-depth interview 
6. Conduct actual interviews 
Introduction Interviewing Taping the interview 
Explain the purpose & objective of study 
Describe how respondent was selected for interview 
Explain who has access to the data ,how confidentiality 
will be maintained & the respondent has the right to 
terminate the interview any time 
Explain what will happen once research is over 
Managing the field data: Field editing, De-briefing, 
Transcribing
Steps in conducting in-depth interview 
7. Analyzing the data 
Categorize interview material into various subtopics 
Label each category using appropriate headings 
Describe & interpret the major findings 
8. Writing a report 
Outline of report 
Title of study 
Objectives & methods , including data analysis 
Major findings 
Discussion 
Conclusion & Recommendations
Focus group discussions are group discussions 
with a small group of individuals from a well defined 
target population on pre-selected topics that rely on 
interaction between group members, under the guidance 
of a trained facilitator. 
Each participant is stimulated by the comments 
of others and in turn stimulate them.
What is 
“It is a qualitative method which helps to find out the ‘How’ 
& ‘Why’ of human behaviour.” 
It can provide insight into how a group thinks about an 
issue, the range of opinions and ideas, and the 
inconsistencies and variations that exist in a particular 
community in terms of beliefs and their experiences 
&practices. 
Purpose of 
◦ Get a variety of perspectives/reactions to a certain issue 
◦ In a short time 
◦ Mainly for eliciting opinions, values, feelings in the group-the 
group norms
The topic should is narrowly focused 
Selection of participants is also focused by targeting 
individuals who meet specific criteria 
Topic should be of interest to both the investigator and 
respondents. 
The emphasis should be on interaction between or 
among the group members.
Cost-effective 
Quality of data enhanced by group participants 
Can quickly assess the extent to which there is 
agreement or diversity on an issue 
Enjoyable for participants 
Outside of natural setting 
Silences the minority view 
Responses by each participant may be Constrained 
Restricts number of questions that can be asked 
Requires group process skills 
Confidentiality not assured 
Explores major themes, but fails to catch subtle 
differences
Adequate knowledge on background information 
about the topic and experience in conducting FGD 
Good listening skills 
Leadership skills 
Relationship with the participants 
Patience and flexibility 
Clothing
Orient the group in a proper manner and Put forth issues/ 
sub issues in appropriate questions. 
Create a non-judgmental environment in which group 
members feel free to express. 
Encourage interaction between participants. 
Encourage quiet participants to speak up and quieten 
garrulous talkers. 
Guide the direction of discussion 
Pace the discussion appropriate for the participant 
Subtly control the time allotted to each question 
Moderator does not himself take part in the discussion
Primarily an observer, tape record the session. 
Observe the nature of interaction, record non-verbal 
communication & level of consensus 
Should know what type of data she/he is expected to 
collect. 
If facilitator has omitted a question from the guide, the 
recorder can point them out (at the end). 
Identify the speakers. Note down the first few words 
every time a new person speaks and make brief notes of 
the content. 
Level of participation of each (sociogram-Diagrammatic 
representation of entire session of FGD)
8 
6 
2 
9 
1 
7 
5 
4 
3 
10 
11 
FOCUSED GROUP 
DISCUSSION 
(SOCIOGRAM)
Focus Group Discussions 
Advantages 
1. Synergism. When a group of people with similar 
interests discuss an issue together, they are likely to 
produce a richer insight, wider range of information, 
and innovative ideas than will individual responses 
obtained privately. 
2. Snowballing. In a group discussion, one person’s 
comment often triggers a chain reaction from the other 
participants and generates more views. 
3. Stimulation. Once the focus group discussion is 
underway, general level of excitement over the topic 
increases, and a large number of respondents want to 
express their ideas and expose their feelings.
Focus Group Discussions 
4. Security. Because of homogeneity of composition, 
focus group participants have similar feelings. This 
enables them to feel comfortable and uninhibited to 
express their ideas/feelings. 
5. Spontaneity. In focus groups participants are not 
required to answer specific questions. Their responses 
can be spontaneous and unconventional reflecting an 
accurate idea of their views 
6. Speed. Because people discuss issues simultaneously, 
data collection and analysis in focus group proceed 
relatively quickly. 
7. Inexpensive. Considering the richness of output, it is a 
relatively inexpensive method of data collection.
Focus Group Discussions 
Disadvantages 
1. Lack of representativeness. results of focus group 
discussions are not projectable and should not be the only 
basis for decision making. 
2. Misjudgment: FDG are susceptible to client and researcher 
biases so the results could be easily misjudged. 
4. Misuse. Focus groups can be misused and abused by 
considering the results as conclusive rather than exploratory. 
5. Moderation. Skills of the moderator is a major determinant 
of FDG success and the quality of their results, but they are 
rare 
6. Difficult to analyze. The unstructured nature of the 
responses in FDG makes coding, analysis, and 
interpretation difficult. 
7. People may be reluctant to talk in each other’s presence
Case studies 
A case study is an exploration of a ‘bounded system’ … 
over time through detailed, in-depth data collection 
involving multiple sources of information rich in context. 
This bounded system is bounded by time and place, 
and it is the case being studied – a program, an event, 
an activity, or individual. 
Types 
Observational : conducted over long period of time 
Oral history case study 
Clinical case study 
For example in-depth exploration of a malnourished child 
from mother & family about food hygiene, episodes of 
diarrhea /other diseases, breast feeding, weaning/type of 
weaning foods
Advantages 
Case studies 
Case studies underlines the observations & concepts in 
natural settings which are difficult to be quantified 
otherwise 
Useful in knowing beliefs , attitudes & perceptions of 
people & their role in complex social phenomena 
Details on single phenomenon can be collected which is 
not possible in survey methods 
Disadvantages 
Essentially qualitative & can not be put to statistical 
analysis and treatment 
Findings can not be generalized on a wider scale
Projective techniques 
Researcher asks the informant to react to some kind of 
visual/verbal stimulus 
The researcher sets up a situation for the respondents asking 
them to express their own views, or to complete/ interpret some 
ambiguous stimulus presented to them. 
Commonly used techniques : 
Free word association 
• A list of carefully selected stimulus words or phrases related to 
the topic of research are read out, one at a time, to a 
respondent. 
• The respondent is asked to respond with the first word or 
phrase that comes to his/her mind. The list of words should 
contain a mixture of test words and neutral words.
Projective techniques 
Sentence Completion(extension of the free-word association 
test. ) 
• In this technique, the respondent is presented with some 
sentences containing incomplete stimuli and is asked to 
complete them. 
• E.g. if I would discover that my sweeper has TB, 
I would ……………..(Complete the sentence) 
Unfinished scenario/story completion 
• This technique is similar to the sentence completion test. 
• However, in this technique, the respondent is presented with 
a specific scenario containing incomplete stimuli and is 
asked to complete the scenario. 
- Like the free-word association method, interpreting and 
analysing data obtained from these techniques is also
Projective techniques 
Cartoon completion test 
• In the cartoon technique, the 
respondent is shown a comic-strip 
like cartoon with two characters in 
a conversation. 
• While the speech of one character 
is shown in his/her balloon, the other 
balloon is empty. 
• The respondent is asked to assume 
the role of the other person and fill the 
empty balloon with a speech.
Other methods 
Delphi technique 
Consensus arising method, first used in World War 2 
The delphi was designed for non-interacting groups. 
Determine the extent to which a group of experts or lay 
people agree or disagree on a particular topic 
Some of the tasks that the delphi can help to address are: 
determining priorities, setting goals, establishing future 
directions 
designing needs assessment strategies & improve service 
delivery 
evaluating programs or alternative plans 
Aggregating judgments or views of special interests or 
opposing groups
Other methods 
Typically, the process takes a no. of rounds 
In first round a knowledgeable group expresses opinions 
on a specific subject & select suitable experts to 
participate in the subsequent round 
Comments are put in form of questionnaire & in second 
round, experts are asked to rank the comments given in 
the first round 
This is then summarized & sent back to the experts in third 
round to rethink on subject 
The re-rankings are then analyzed for consensus. 
If there is no consensus , the process of repeat rounds is 
continued till consensus emerges
Other methods
Other methods 
Nominal group technique 
Also consensus method, Unlike Delphi method, here a 
highly structured meeting is planned with 9-12 relevant 
experts & decision are taken on a specific subject of 
concern 
Steps 
Participants in the group spend time to write down their views 
Each participant contributes one idea to the facilitator who 
records it and Similar suggestions are grouped together 
Wherever appropriate, there is group discussion to clarify & 
evaluate each idea 
Each participant privately ranks each idea 
The ranking is tabulated & presented 
Overall ranking is discussed & re-ranked 
Final rankings are tabulated & the results fed back to participants
Other methods 
Grounded Theory 
Rooted in social sciences 
Emphasizes the development of 
theory which is grounded in data 
systematically collected and 
analysed (constant comparative 
analysis to produce substantive 
theory) 
Relationships between 
categories identified to develop 
formal theory 
Develops theory from data 
rather than applying a theory to 
the data.
Other methods 
Narrative research method 
Uses multistep in research 
In first stage a workshop is conducted with 
leaders/experts to identify key events for that area of 
research 
This is followed by stories/questionnaires collected 
from the field 
Final stage is of conducting a workshop with same 
group of people who attended the first event to discuss 
& analyze findings 
Aim is to find out realistic approach which is evidence 
based
Other methods 
Ethnography (Ethno = people Graphy = describing 
something) 
Rooted in anthropology 
special type of studies where investigators goes & live 
with the community 
studies cultural patterns and perspectives of participants 
in their natural settings 
Phenomenology 
Rooted in philosophy 
Analysis /description of everyday life 
How is each individual’s subjective reality applied to 
make experiences meaningful?
Goal 
DATA ANALYSIS 
To create meaning out of raw data 
Qualitative data analysis is a non-linear process 
Numerous rounds of questioning, reflecting, rephrasing, 
analysing, theorising, verifying after each observation, 
interview, or FDG 
Process of data analysis 
Comprehending the data 
Synthesizing : piecing & linking different parts of the data set 
Theorizing : develop a system of logical statements that 
explain the relation b/w 2 or more concepts, phenomena, or 
human characters. 
Re contextualizing : categorization system is refined 
according to emergent themes, research questions, theoretical 
frameworks, or data itself
Steps in qualitative data analysis 
1. Data reduction :refers to the process of selecting , 
simplifying, abstracting, & transforming data 
2. Data display : Display is an organized compressed 
assembly 
of information that permits conclusion drawing 
Most data initially displayed as text 
As analysis proceeds, displays may move to more compact 
& accessible forms such as matrices, network diagram, 
graphs etc. 
3. Conclusion drawing & verification : 
Initial interpretation of data may be vague 
Interpretation of data become more focused as data 
collection & analysis proceeds 
Final conclusion should be explicit & grounded within data
Coding 
Beginning of data analysis but linked to original 
research questions 
Identification of key themes & pattern within data 
Codes are tools to think with in a systematic & 
organized way 
Intended outcome is to create 3-8 summary categories 
When inductive coding finishes up with more than 8 
major themes, need to re-examine them
Types of coding 
Deductive : 
• uses categories constructed from theory in order to 
develop a coding framework 
• Use existing literature/studies or theoretical frames 
to develop hypothesis or categories for coding prior 
to fieldwork 
Inductive : 
• Designs the coding schemes from the data 
collected through participant observation, in-depth 
interview, FGDs etc. 
• Develop a model or theory about underlying 
structure of experiences or processes evident in 
raw data
Validity, in qualitative research, refers to whether the 
findings of a study are true and certain— 
-“true” in the sense that research findings accurately reflect the 
situation, and 
-“certain” means that findings are supported by the evidence. 
Triangulation is a method used by qualitative 
researchers to check and establish validity in their studies 
by analyzing a research question from multiple 
perspectives 
Benefits of Triangulation 
Advantages of each complement the other 
◦ resulting in a stronger research design, and 
◦ more valid and reliable findings. 
Inadequacies of individual methods are minimized 
Triangulation offers a balance between logic and stories
Types Of Triangulation 
Data triangulation, 
Investigator 
triangulation, 
which entails gathering 
data through several 
sampling strategies, so 
that slices of data at 
Theoretical 
triangulation, 
which refers to the use 
different times and 
social situations, as 
well as on a variety of 
people, are gathered 
Environmental 
Triangulation 
It involves the use 
of different 
locations, settings, 
and other key 
factors related to 
the environment in 
which the study 
took place, such 
as the time, day, or 
season to identify 
which 
environmental 
factors, if any, 
might influence 
the information 
that is received 
during the study. 
Methodological 
triangulation, 
which refers to the use 
of more than one 
researcher in the 
field to gather and 
interpret data. 
of more than one 
theoretical 
position in 
interpreting data. 
which refers to the 
use of more than 
one method for 
gathering data
Unlike quantitative studies, here sample size Is not 
determined by conventional formulae, but depends on the 
point of Saturation. 
Goal is to understand phenomena, not to represent 
population, so Select information-rich cases for intensive 
study 
Minimum samples based on expected reasonable 
coverage, given the purpose of the study and constraints
Types of purposeful sampling 
Snowball sampling : 
Very commonly used 
method in 
qualitative studies 
Subject recommends 
other people they 
know& snowball gets 
bigger as more 
information rich 
cases get included 
Opportunistic 
sampling 
On the spot decision 
about sampling to 
take advantage of 
new opportunities 
during data collection 
Maximum variation sampling : 
Homogenous sampling 
: 
Aim is to select study units which 
represent a wide range of variation 
in dimension of interest 
E.g. researcher interested in FP 
practices assumes religion as 
important dimension & takes 
participants of different religious 
background in the study 
Criterion sampling 
Set a criteria and pick all 
cases that meets the 
selected criteria 
for example, all ladies six 
feet tall, all white cars, all 
farmers that have planted 
onions 
Selecting similar types to 
describe a particular group in-depth 
E.g. select participants who 
have similar demographic 
characteristics, age, gender, 
education etc. 
Used mainly in FGD
Typical cases sampling 
Selection of cases that illustrate what is typical or average for a 
particular phenomenon 
Critical case sampling 
Selecting cases who for some reason are specially important 
This permits logical generalization and maximum application of 
information to other cases like If it is true for this one case, it is 
likely to be true of all other cases. 
E.g. if it happened to so and so then it can happen to anybody 
or if so and so passed that exam, then anybody can pass. 
Extreme or deviant case sampling 
Learn from highly unusual manifestation of phenomenon of 
interest such as outstanding successes, notable failures, top of 
the class, dropouts, exotic events, crises etc.
Sampling contrasting cases 
Aim is to explain problems by establishing which factors 
are associated with it 
E.g. reason for not using FP services can be studied by 
comparing women using FP methods with women not 
using the methods 
Used to select participants for FGDs. Each group is 
homogenous but for different groups one selects 
contrasting cases (e.g. men and women, user and non 
users) 
Convenience sampling : 
Selecting whoever is easiest, closest & most convenient to 
save time & money 
Least desirable
Combining qualitative & quantitative methods 
Has been subject of heated debate as the Purist in both camps 
have argued against this union 
In recent times, use of two methods in combination has gained 
popularity 
Different ways in which two techniques can be combined 
A. Qualitative before quantitative 
Qualitative techniques can be used to provide much needed 
information when venturing into new areas 
Use of qualitative method to check assumptions & refine 
research questions is valuable across & within culture 
Also useful during the development of measurement scale 
e.g., Exploratory Pilot study precedes Experimental design
Combining qualitative & quantitative methods 
B. Quantitative before Qualitative 
Interpretation of quantitative findings can draw upon qualitative 
methods for valuable insights and illustrations 
Quantitative studies can yield hard data whose meaning may be 
unclear 
Qualitative studies help to provide clarity to such data 
C. Qualitative & Quantitative together 
The two can be used together in the same study to extend & 
compliment findings 
Both types of information together will provide a better basis for 
planning strategies for prevention 
e.g., Case study & Survey methods
Combining qualitative & quantitative methods 
Benefits of combining method 
Advantages of each complement the other, resulting in a 
stronger research design, and more valid and reliable 
findings. 
Inadequacies of individual methods are minimized 
Offers a balance between logic and stories 
Practical Issues 
Combination demands access to a wide range of expertise 
Necessitates need for a team approach 
Give careful consideration to design issues 
multiple methods may result in data that confirm or 
contradict each other
NATURALISTIC – Natural setting as source of data 
INDUCTIVE – It seeks to build theory from data & avoid imposing 
researcher’s own categories of analysis 
HOLISTIC – It looks at the phenomenon in totality & takes an 
overall perspective 
TRIANGULATION – Comparing data collected from different 
methods 
FLEXIBLE DESIGN- Emergent design as opposed to pre-determined 
design in quantitative methods 
INTERPRETIVE – Aimed at discovering the meaning the events 
have for the individuals who experience them & interpretation of 
these meaning by researcher 
PARTICULARISTIC - Guided by objectives 
PROBES - are neutral questions, phrases, sounds, and even 
gestures interviewers use to encourage participants to elaborate 
on their answers and explain why or how
.
References 
Silverman-(3e)-3414-02.qxd 
Kerstin Cuhls, Fraunhofer Institute for Systems and 
Innovation Research, Germany 
A review of preventive and social medicine chandrakant 
lahariya 
PARK’s textbook of preventive &social medicine K .park 
Qualitative research methods in health preconference 
workshop IAPSMCON2008,dept of PSM, JIPMER, 
puducherry 
en.wikipedia.org/wiki/Qualitative_research - 
wagner.nyu.edu/leadership/publications/files/Qualitative_Res 
earch.pdf 
en.wikipedia.org/wiki/Research 
Qualitative Research Sonia Ospina Robert F. Wagner 
Graduate School of Public Service New York University
www.scribd.com/doc/50828882/Qualitative-research-core-concepts 
- 
www.qsrinternational.com/what-is-qualitative-research.aspx 
Ulin et al (2002) Qualitative methods: A field guide for applied 
research in Sexual and Reproductive Health. Family Health 
International. 
Patton MQ (2002) Qualitative Research and Evaluation 
Methods. 3rd Edition. Sage Publications 
www.socialresearchmethods.net/tutorial/Mugo/tutorial.htm 
www.qualitative-research.net/fqs/fqs-e/inhalt1-01-e.htm 
http://www.ucalgary.ca/~dmjacobs/phd/method

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qualitative research DR. MADHUR VERMA PGIMS ROHTAK

  • 1. dr
  • 2. Contents Introduction Difference b/w Qualitative & Quantitative research Uses of Qualitative research Steps in designing a qualitative study Qualitative research methods Data analysis in Qualitative research Sampling methods in Qualitative Research Combining qualitative & quantitative methods
  • 3. Consists of an investigation that: seeks answers to a question systematically uses a predefined set of procedures to answer the question collects evidence produces findings that were not determined in advance produces findings that may be applicable beyond the immediate boundaries of the study
  • 4. RESEARCH QUANTITATIVE MIXED QUALITATIVE APPLIED STUDY TRADITIONAL QUALITATIVE STUDY
  • 5. Includes collecting, analyzing, and interpreting data by observing what people do and say. Qualitative research refers to the meanings, concepts, definitions, characteristics, metaphors, symbols, and descriptions of things. Historical background Qualitative research has its root in anthropology, philosophy & sociology First used by anthropologist & sociologist as a method of inquiry in early decades of 20th century
  • 6. What is ? It seeks to understand a given research problem or topic from the perspectives of the local population it involves. Qualitative research is especially effective in obtaining culturally specific information about the values, opinions, behaviors, and social contexts of particular populations. The Scope of Qualitative Research is to explore & understand through 1. Participant’s ‘Lived experience’ 2. “Insider’s” perspectives 3. In the Context of the given situation
  • 7. Characteristics of Qualitative research Concerned with generation of hypothesis, not with testing Problems & methods tend to evolve over course of study Phenomena are examined from participants perspectives Only a few participants are involved in the study Focuses on a holistic view of what is being studied (via documents, case histories, observations and interviews) Concerned with the changing and dynamic nature of reality Concentrate upon exploring the rationale of beliefs, attitude & behaviour Not based on measures of quantity or frequency
  • 8. Characteristics of Qualitative research Emphasis is given to meanings, expressions & experience of all the participating individual, each individual perception should be given equal importance Emphasis on observation and interpretation. Aim is to see the world through the eyes of the subjects. This requires that data collection are relatively open & unstructured Data are collected within the context of their natural occurrence Findings are described in words rather than numbers
  • 9. When not to use QR Results are to be projected to the total population When numbers are needed to make a decision (what proportion of people ) To identify the important problem to be solved at community/ local/ policy levels To inform what people are doing, thinking, and saying about a problem Generate a list of options for interventions To investigate how best to implement promising interventions When QR to be used
  • 10. Functions Of 1. Developing and delineating program elements before a quantitative evaluation 2. Generating theory 3. Boosting the power of quantitative design& Broadening the observation field 4. Analyzing process and individual cases to explain the how and why of an outcome.
  • 11. What can we learn from ? Its strength lies in its ability to provide complex textual descriptions of how people experience a given research issue. provides information about the “human” side of an issue It help us to interpret and better understand the complex reality of a given situation and the implications of quantitative data.
  • 12. Forms Of Qualitative Data Field Notes Audio- Video Recordings Diagrams Of: •Participant Observations •Observations made during FGDs& In- Depth Interviews Of: • Focused Group Discussions • In- Depth Interviews E.g. Sociograms
  • 13. Difference between qualitative and quantitative research
  • 14.
  • 15. 1. Seek to confirm hypotheses about phenomena 2. Use highly structured methods such as questionnaires, surveys& structured observation 3. To quantify variation 4. To predict causal relationship 5. To describe characteristics of a population 1. Seek to explore phenomena 2. Use semi-structured methods such as interviews, focus groups, and participant observation 3. To describe variation 4. To describe& explain relationship 5. To describe individual experiences& group norms
  • 16. 6. Closed- ended 7. Numerical (obtained by assigning numerical values to responses) 8. Study design is stable from beginning to end 9. Participant responses do not influence or determine how and which questions researchers ask next- Researcher is limited by the Questionnaire 10. Study design is subject to statistical assumptions and conditions 6. Open- ended 7. Textual (obtained from audiotapes, videotapes, and field notes) 8. Some aspects of the study are flexible 9. Participant responses affect how and which questions researchers ask next- Researcher may use probes 10. Study design is iterative, that is, data collection and research questions are adjusted according to what is learned
  • 17. Example: Close Ended Questions Do you give OPV to your child during PPI rounds? Yes, Always No, Never Sometimes/Occasionally Most of the times Example: Open Ended Questions: What are your opinions about giving OPV to children, during PPI rounds? Probe: Why do you think that giving OPV can harm your child?
  • 18. Example: Smoking and lung cancer Epidemiological/ Quantitative research establishes the association b/w smoking and lung cancer Qualitative methodology helps to explain: ◦ Reasons why people continue to smoke despite the evidence ◦ Social meaning of smoking (e.g. among women and the youth) Qualitative Research seeks to discover meaning and build theory ◦ Why do girls take up smoking? Quantitative Research seeks to test and refine theory: ◦ What is the relative importance of age, class, and family type as predictors of girls taking up smoking ?
  • 19. 1. Establish the general problem to be investigated ◦ Of interest to the researcher 2. Stating the purpose of the study ◦ Based on problem analysis ◦ Arises from previous studies ◦ Guided by literature review ◦ Determined by who will use the research results 3. Develop a conceptual/theoretical framework for the study 4. Formulate general and specific research questions (aims and objectives) 5. Select a qualitative research design
  • 20. 6. Select a sampling strategy ◦ Establish site of the research ◦ Selection of participants 7. Ensure trustworthiness of the study 8. Determine data collection methods and develop data collection tools 9. Establish how data will be managed and analyzed 10. Interpretation and discussion of findings 11. Prepare research report
  • 21. Methods 1. Observational methods Participant observation Non -Participant observation 2. Interview techniques Structured Semi-structured Unstructured 3. Focus group discussions (FGDs) 4. Case studies 5. Sorting & ranking methods 6. Personal documents & Accounts Diaries Critical incidents Stories 7. Projective techniques Free word association Sentence completion Story completion Cartoon completion 8. Other methods
  • 22. A qualitative research method in which researchers gather data either by observing or by both observing and participating, to varying degrees, in the study-community’s daily activities, in community settings relevant to the research questions. (Example at bars, brothels, waiting areas, religious settings) Approach the participants in their own environment Don’t leak out secrets! Take Field notes
  • 23. Complete observer Behind one-way mirror, invisible role Observer as participant Known, overt observer Participant as observer Pseudo-member, research role known
  • 24. It provides Familiarity with the cultural milieu It can Uncover The Unknown Factors- provide information previously unknown to researchers that is crucial for project design, data collection& interpretation of other data. But: It is Time- consuming Memory based, Inherently Subjective so, Practice to be objective rather than narrating subjectively.
  • 25. Determine the purpose of the participant observation activity as related to the overall research objectives and the population(s) to be observed. Select the site(s), time(s) of day, and date(s) Decide how field staff will pair off to cover all sites most effectively. Consider how you will present yourself in terms of appearance and explain your purpose to others if necessary. Plan how you will take notes during the participant observation activity.
  • 26. Schedule time soon after participant observation to expand your notes. Type your notes into computer files using the standard format set for the study
  • 27. A qualitative research method in which a researcher/interviewer gathers data about an individual’s perspectives on a specific topic(s) The researcher/interviewer engages with the individual by posing questions in a neutral manner, listening attentively to responses, and asking follow-up questions and probes based on those responses.
  • 28. Interview techniques 1. Structured interviews: Impose fixed structure on ordering & wording of questions & categories for coding response 2. Semi-structured Less rigid than structured Respondents asked a series of open ended questions and answers are recorded in full. Interviewer is free to probe to amplify & clarify responses and follow up any interesting idea or to delete any question 3. Unstructured : Minimal influence on the structure of schedule(In-depth interview)
  • 29. Types Of Questions Experience and behavior questions Opinion and value questions Feeling questions Knowledge questions Background/demographic questions
  • 30. Purpose Of Interviews It help us to Elicit ◦ Feelings ◦ Thoughts ◦ Opinions ◦ Previous experiences ◦ The meaning people give to certain events
  • 31. Advantages Disadvantages Emic perspective Facilitate rapport More appropriate in rural setting Responses more valid Explanatory tool • Replicability difficult • Time consuming • Results not strictly comparable • Require familiarity with language and culture
  • 32. Steps in conducting in-depth interview 1. Plan how to conduct the in-depth interview Planning decisions & preparations. Includes Designing the study, Identify target group, Preparing for the field work, Collecting & analyzing 2. Decide who the respondents will be Determine who to select for the interviews Example - To identify representative mothers of children under age 5 recently treated for ARI Contact selected health facility Get list of children under age 5 treated for ARI Decide on no. of mothers to be interviewed Contact & arrange for interviews
  • 33. Steps in conducting in-depth interview 3. Prepare interview guide  Framing the questions List the most important topics to be explored in the study Example • Overuse of antibiotics for ARI, • Specific topics like antibiotics used, symptoms associated, reason for prescribing antibiotics for common cold , reported pt. preference etc. Identify relevant subtopics for each study topics Belief about respiratory infections Efficacy of antibiotics in treating infections
  • 34. Steps in conducting in-depth interview Check each question against the overall study questions & remove those that are not needed Ensure questions are Clear & unambiguous Simple & easy to understand Not answerable by simple yes or no Reasonable & within the experience of the respondents Construction of probes Probes are devices used to prompt a respondent to speak further when an initial question fails to elicit the desired information Sequence of topics
  • 35. Steps in conducting in-depth interview 4. Select interviewers Role of interviewer is to keep discussion going by asking useful questions until he gets an appropriate answer Qualities include self confidence, ability to establish rapport, articulate, ability to probe 5. Train the interviewers Duration of training : depends on size of study & caliber of team. May take 2-3 days Training session should include both theoretical & practical aspects
  • 36. Steps in conducting in-depth interview 6. Conduct actual interviews Introduction Interviewing Taping the interview Explain the purpose & objective of study Describe how respondent was selected for interview Explain who has access to the data ,how confidentiality will be maintained & the respondent has the right to terminate the interview any time Explain what will happen once research is over Managing the field data: Field editing, De-briefing, Transcribing
  • 37. Steps in conducting in-depth interview 7. Analyzing the data Categorize interview material into various subtopics Label each category using appropriate headings Describe & interpret the major findings 8. Writing a report Outline of report Title of study Objectives & methods , including data analysis Major findings Discussion Conclusion & Recommendations
  • 38. Focus group discussions are group discussions with a small group of individuals from a well defined target population on pre-selected topics that rely on interaction between group members, under the guidance of a trained facilitator. Each participant is stimulated by the comments of others and in turn stimulate them.
  • 39. What is “It is a qualitative method which helps to find out the ‘How’ & ‘Why’ of human behaviour.” It can provide insight into how a group thinks about an issue, the range of opinions and ideas, and the inconsistencies and variations that exist in a particular community in terms of beliefs and their experiences &practices. Purpose of ◦ Get a variety of perspectives/reactions to a certain issue ◦ In a short time ◦ Mainly for eliciting opinions, values, feelings in the group-the group norms
  • 40. The topic should is narrowly focused Selection of participants is also focused by targeting individuals who meet specific criteria Topic should be of interest to both the investigator and respondents. The emphasis should be on interaction between or among the group members.
  • 41. Cost-effective Quality of data enhanced by group participants Can quickly assess the extent to which there is agreement or diversity on an issue Enjoyable for participants Outside of natural setting Silences the minority view Responses by each participant may be Constrained Restricts number of questions that can be asked Requires group process skills Confidentiality not assured Explores major themes, but fails to catch subtle differences
  • 42. Adequate knowledge on background information about the topic and experience in conducting FGD Good listening skills Leadership skills Relationship with the participants Patience and flexibility Clothing
  • 43. Orient the group in a proper manner and Put forth issues/ sub issues in appropriate questions. Create a non-judgmental environment in which group members feel free to express. Encourage interaction between participants. Encourage quiet participants to speak up and quieten garrulous talkers. Guide the direction of discussion Pace the discussion appropriate for the participant Subtly control the time allotted to each question Moderator does not himself take part in the discussion
  • 44. Primarily an observer, tape record the session. Observe the nature of interaction, record non-verbal communication & level of consensus Should know what type of data she/he is expected to collect. If facilitator has omitted a question from the guide, the recorder can point them out (at the end). Identify the speakers. Note down the first few words every time a new person speaks and make brief notes of the content. Level of participation of each (sociogram-Diagrammatic representation of entire session of FGD)
  • 45. 8 6 2 9 1 7 5 4 3 10 11 FOCUSED GROUP DISCUSSION (SOCIOGRAM)
  • 46.
  • 47. Focus Group Discussions Advantages 1. Synergism. When a group of people with similar interests discuss an issue together, they are likely to produce a richer insight, wider range of information, and innovative ideas than will individual responses obtained privately. 2. Snowballing. In a group discussion, one person’s comment often triggers a chain reaction from the other participants and generates more views. 3. Stimulation. Once the focus group discussion is underway, general level of excitement over the topic increases, and a large number of respondents want to express their ideas and expose their feelings.
  • 48. Focus Group Discussions 4. Security. Because of homogeneity of composition, focus group participants have similar feelings. This enables them to feel comfortable and uninhibited to express their ideas/feelings. 5. Spontaneity. In focus groups participants are not required to answer specific questions. Their responses can be spontaneous and unconventional reflecting an accurate idea of their views 6. Speed. Because people discuss issues simultaneously, data collection and analysis in focus group proceed relatively quickly. 7. Inexpensive. Considering the richness of output, it is a relatively inexpensive method of data collection.
  • 49. Focus Group Discussions Disadvantages 1. Lack of representativeness. results of focus group discussions are not projectable and should not be the only basis for decision making. 2. Misjudgment: FDG are susceptible to client and researcher biases so the results could be easily misjudged. 4. Misuse. Focus groups can be misused and abused by considering the results as conclusive rather than exploratory. 5. Moderation. Skills of the moderator is a major determinant of FDG success and the quality of their results, but they are rare 6. Difficult to analyze. The unstructured nature of the responses in FDG makes coding, analysis, and interpretation difficult. 7. People may be reluctant to talk in each other’s presence
  • 50. Case studies A case study is an exploration of a ‘bounded system’ … over time through detailed, in-depth data collection involving multiple sources of information rich in context. This bounded system is bounded by time and place, and it is the case being studied – a program, an event, an activity, or individual. Types Observational : conducted over long period of time Oral history case study Clinical case study For example in-depth exploration of a malnourished child from mother & family about food hygiene, episodes of diarrhea /other diseases, breast feeding, weaning/type of weaning foods
  • 51. Advantages Case studies Case studies underlines the observations & concepts in natural settings which are difficult to be quantified otherwise Useful in knowing beliefs , attitudes & perceptions of people & their role in complex social phenomena Details on single phenomenon can be collected which is not possible in survey methods Disadvantages Essentially qualitative & can not be put to statistical analysis and treatment Findings can not be generalized on a wider scale
  • 52. Projective techniques Researcher asks the informant to react to some kind of visual/verbal stimulus The researcher sets up a situation for the respondents asking them to express their own views, or to complete/ interpret some ambiguous stimulus presented to them. Commonly used techniques : Free word association • A list of carefully selected stimulus words or phrases related to the topic of research are read out, one at a time, to a respondent. • The respondent is asked to respond with the first word or phrase that comes to his/her mind. The list of words should contain a mixture of test words and neutral words.
  • 53. Projective techniques Sentence Completion(extension of the free-word association test. ) • In this technique, the respondent is presented with some sentences containing incomplete stimuli and is asked to complete them. • E.g. if I would discover that my sweeper has TB, I would ……………..(Complete the sentence) Unfinished scenario/story completion • This technique is similar to the sentence completion test. • However, in this technique, the respondent is presented with a specific scenario containing incomplete stimuli and is asked to complete the scenario. - Like the free-word association method, interpreting and analysing data obtained from these techniques is also
  • 54. Projective techniques Cartoon completion test • In the cartoon technique, the respondent is shown a comic-strip like cartoon with two characters in a conversation. • While the speech of one character is shown in his/her balloon, the other balloon is empty. • The respondent is asked to assume the role of the other person and fill the empty balloon with a speech.
  • 55. Other methods Delphi technique Consensus arising method, first used in World War 2 The delphi was designed for non-interacting groups. Determine the extent to which a group of experts or lay people agree or disagree on a particular topic Some of the tasks that the delphi can help to address are: determining priorities, setting goals, establishing future directions designing needs assessment strategies & improve service delivery evaluating programs or alternative plans Aggregating judgments or views of special interests or opposing groups
  • 56. Other methods Typically, the process takes a no. of rounds In first round a knowledgeable group expresses opinions on a specific subject & select suitable experts to participate in the subsequent round Comments are put in form of questionnaire & in second round, experts are asked to rank the comments given in the first round This is then summarized & sent back to the experts in third round to rethink on subject The re-rankings are then analyzed for consensus. If there is no consensus , the process of repeat rounds is continued till consensus emerges
  • 58. Other methods Nominal group technique Also consensus method, Unlike Delphi method, here a highly structured meeting is planned with 9-12 relevant experts & decision are taken on a specific subject of concern Steps Participants in the group spend time to write down their views Each participant contributes one idea to the facilitator who records it and Similar suggestions are grouped together Wherever appropriate, there is group discussion to clarify & evaluate each idea Each participant privately ranks each idea The ranking is tabulated & presented Overall ranking is discussed & re-ranked Final rankings are tabulated & the results fed back to participants
  • 59. Other methods Grounded Theory Rooted in social sciences Emphasizes the development of theory which is grounded in data systematically collected and analysed (constant comparative analysis to produce substantive theory) Relationships between categories identified to develop formal theory Develops theory from data rather than applying a theory to the data.
  • 60. Other methods Narrative research method Uses multistep in research In first stage a workshop is conducted with leaders/experts to identify key events for that area of research This is followed by stories/questionnaires collected from the field Final stage is of conducting a workshop with same group of people who attended the first event to discuss & analyze findings Aim is to find out realistic approach which is evidence based
  • 61. Other methods Ethnography (Ethno = people Graphy = describing something) Rooted in anthropology special type of studies where investigators goes & live with the community studies cultural patterns and perspectives of participants in their natural settings Phenomenology Rooted in philosophy Analysis /description of everyday life How is each individual’s subjective reality applied to make experiences meaningful?
  • 62. Goal DATA ANALYSIS To create meaning out of raw data Qualitative data analysis is a non-linear process Numerous rounds of questioning, reflecting, rephrasing, analysing, theorising, verifying after each observation, interview, or FDG Process of data analysis Comprehending the data Synthesizing : piecing & linking different parts of the data set Theorizing : develop a system of logical statements that explain the relation b/w 2 or more concepts, phenomena, or human characters. Re contextualizing : categorization system is refined according to emergent themes, research questions, theoretical frameworks, or data itself
  • 63. Steps in qualitative data analysis 1. Data reduction :refers to the process of selecting , simplifying, abstracting, & transforming data 2. Data display : Display is an organized compressed assembly of information that permits conclusion drawing Most data initially displayed as text As analysis proceeds, displays may move to more compact & accessible forms such as matrices, network diagram, graphs etc. 3. Conclusion drawing & verification : Initial interpretation of data may be vague Interpretation of data become more focused as data collection & analysis proceeds Final conclusion should be explicit & grounded within data
  • 64. Coding Beginning of data analysis but linked to original research questions Identification of key themes & pattern within data Codes are tools to think with in a systematic & organized way Intended outcome is to create 3-8 summary categories When inductive coding finishes up with more than 8 major themes, need to re-examine them
  • 65. Types of coding Deductive : • uses categories constructed from theory in order to develop a coding framework • Use existing literature/studies or theoretical frames to develop hypothesis or categories for coding prior to fieldwork Inductive : • Designs the coding schemes from the data collected through participant observation, in-depth interview, FGDs etc. • Develop a model or theory about underlying structure of experiences or processes evident in raw data
  • 66. Validity, in qualitative research, refers to whether the findings of a study are true and certain— -“true” in the sense that research findings accurately reflect the situation, and -“certain” means that findings are supported by the evidence. Triangulation is a method used by qualitative researchers to check and establish validity in their studies by analyzing a research question from multiple perspectives Benefits of Triangulation Advantages of each complement the other ◦ resulting in a stronger research design, and ◦ more valid and reliable findings. Inadequacies of individual methods are minimized Triangulation offers a balance between logic and stories
  • 67. Types Of Triangulation Data triangulation, Investigator triangulation, which entails gathering data through several sampling strategies, so that slices of data at Theoretical triangulation, which refers to the use different times and social situations, as well as on a variety of people, are gathered Environmental Triangulation It involves the use of different locations, settings, and other key factors related to the environment in which the study took place, such as the time, day, or season to identify which environmental factors, if any, might influence the information that is received during the study. Methodological triangulation, which refers to the use of more than one researcher in the field to gather and interpret data. of more than one theoretical position in interpreting data. which refers to the use of more than one method for gathering data
  • 68. Unlike quantitative studies, here sample size Is not determined by conventional formulae, but depends on the point of Saturation. Goal is to understand phenomena, not to represent population, so Select information-rich cases for intensive study Minimum samples based on expected reasonable coverage, given the purpose of the study and constraints
  • 69. Types of purposeful sampling Snowball sampling : Very commonly used method in qualitative studies Subject recommends other people they know& snowball gets bigger as more information rich cases get included Opportunistic sampling On the spot decision about sampling to take advantage of new opportunities during data collection Maximum variation sampling : Homogenous sampling : Aim is to select study units which represent a wide range of variation in dimension of interest E.g. researcher interested in FP practices assumes religion as important dimension & takes participants of different religious background in the study Criterion sampling Set a criteria and pick all cases that meets the selected criteria for example, all ladies six feet tall, all white cars, all farmers that have planted onions Selecting similar types to describe a particular group in-depth E.g. select participants who have similar demographic characteristics, age, gender, education etc. Used mainly in FGD
  • 70. Typical cases sampling Selection of cases that illustrate what is typical or average for a particular phenomenon Critical case sampling Selecting cases who for some reason are specially important This permits logical generalization and maximum application of information to other cases like If it is true for this one case, it is likely to be true of all other cases. E.g. if it happened to so and so then it can happen to anybody or if so and so passed that exam, then anybody can pass. Extreme or deviant case sampling Learn from highly unusual manifestation of phenomenon of interest such as outstanding successes, notable failures, top of the class, dropouts, exotic events, crises etc.
  • 71. Sampling contrasting cases Aim is to explain problems by establishing which factors are associated with it E.g. reason for not using FP services can be studied by comparing women using FP methods with women not using the methods Used to select participants for FGDs. Each group is homogenous but for different groups one selects contrasting cases (e.g. men and women, user and non users) Convenience sampling : Selecting whoever is easiest, closest & most convenient to save time & money Least desirable
  • 72. Combining qualitative & quantitative methods Has been subject of heated debate as the Purist in both camps have argued against this union In recent times, use of two methods in combination has gained popularity Different ways in which two techniques can be combined A. Qualitative before quantitative Qualitative techniques can be used to provide much needed information when venturing into new areas Use of qualitative method to check assumptions & refine research questions is valuable across & within culture Also useful during the development of measurement scale e.g., Exploratory Pilot study precedes Experimental design
  • 73. Combining qualitative & quantitative methods B. Quantitative before Qualitative Interpretation of quantitative findings can draw upon qualitative methods for valuable insights and illustrations Quantitative studies can yield hard data whose meaning may be unclear Qualitative studies help to provide clarity to such data C. Qualitative & Quantitative together The two can be used together in the same study to extend & compliment findings Both types of information together will provide a better basis for planning strategies for prevention e.g., Case study & Survey methods
  • 74. Combining qualitative & quantitative methods Benefits of combining method Advantages of each complement the other, resulting in a stronger research design, and more valid and reliable findings. Inadequacies of individual methods are minimized Offers a balance between logic and stories Practical Issues Combination demands access to a wide range of expertise Necessitates need for a team approach Give careful consideration to design issues multiple methods may result in data that confirm or contradict each other
  • 75. NATURALISTIC – Natural setting as source of data INDUCTIVE – It seeks to build theory from data & avoid imposing researcher’s own categories of analysis HOLISTIC – It looks at the phenomenon in totality & takes an overall perspective TRIANGULATION – Comparing data collected from different methods FLEXIBLE DESIGN- Emergent design as opposed to pre-determined design in quantitative methods INTERPRETIVE – Aimed at discovering the meaning the events have for the individuals who experience them & interpretation of these meaning by researcher PARTICULARISTIC - Guided by objectives PROBES - are neutral questions, phrases, sounds, and even gestures interviewers use to encourage participants to elaborate on their answers and explain why or how
  • 76. .
  • 77. References Silverman-(3e)-3414-02.qxd Kerstin Cuhls, Fraunhofer Institute for Systems and Innovation Research, Germany A review of preventive and social medicine chandrakant lahariya PARK’s textbook of preventive &social medicine K .park Qualitative research methods in health preconference workshop IAPSMCON2008,dept of PSM, JIPMER, puducherry en.wikipedia.org/wiki/Qualitative_research - wagner.nyu.edu/leadership/publications/files/Qualitative_Res earch.pdf en.wikipedia.org/wiki/Research Qualitative Research Sonia Ospina Robert F. Wagner Graduate School of Public Service New York University
  • 78. www.scribd.com/doc/50828882/Qualitative-research-core-concepts - www.qsrinternational.com/what-is-qualitative-research.aspx Ulin et al (2002) Qualitative methods: A field guide for applied research in Sexual and Reproductive Health. Family Health International. Patton MQ (2002) Qualitative Research and Evaluation Methods. 3rd Edition. Sage Publications www.socialresearchmethods.net/tutorial/Mugo/tutorial.htm www.qualitative-research.net/fqs/fqs-e/inhalt1-01-e.htm http://www.ucalgary.ca/~dmjacobs/phd/method

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