Presentation in WF ED 540, Data Analysis, at Penn State, Fall Semester 2019

1. DATA ANALYSIS INWF ED
CLASS MEETING 12, 18 NOVEMBER 2019

2. The approximate
truth of an
inference

7. A research design is the set of
methods and procedures used in
collecting, organizing, and
analyzing measures of the variables
specified in the problem research.

8. A research design is specified to
minimize threats to conclusion,
internal, and external validity.

9.  O is an observation ( a point of data collection)
of experimental units
 O1 and O2 are observations 1 and 2
 X is a treatment condition (an event or activity)
 X1 and X2 are treatments 1 and 2
 R indicates random assignment of experimental
units to treatment conditions

10. O

11. O
O

12. O
O
Separator shows there
are, in this case, two
groups not by random
assignment

13. O
O
Time

14. X O

15. O X O

16. O1 X O2

17. X O
O

18. O X O
O O

19. R X O
R O

22. DATA ANALYSIS INWF ED
CLASS MEETING 12, 18 NOVEMBER 2019