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Measurement and Structure
Models
Carlo Magno, PhD
Counseling and Educational Psychology Department
De La Salle University-Manila
Bivariate linear regression
                  Y = a + BX
Multiple regression
         Y = a + B1X1 + B2X2 + B2X3
Path Model
             Y = B1X1 + B2X2 + e1
Structural Equations Model
               F2 = B1F1 + e1
Example 1
                 2.63*   Organization and
        Delta1           Planning                2.201*
                 4.10*
        Delta2           Student Interaction
                                               2.83*
                 2.11*
        Delta3           Evaluation            1.99*
                                                               Teacher
                 5.79*                         3.80*           Performance in
                         Instructional                         NSTP
        Delta4
                         Methods               3.03*
                 2.93*
        Delta5           Course Outcome        2.95*

                 2.45*
        Delta6           Learner-              2.00*
                         centeredness

        Delta7
                 2.74*
                         Communication                    X2=3.42, GFI=.97, RMSEA=.01


What do you call this model?
What analysis is used in this model?
What are the three things that you interpret in this
model?
Example 2                            DELTA2                 DELTA2


                                       25.12*                                   17.69*
                                                 KC                     RC


                                                 7.22*               7.86*
                                                      Metacognition



                                                                2.12*
X2=4.51, GFI=.99, RMSEA=.00
                                                                                5.00*
                                                          Critical
                                                                                           ZETA
                                                         Thinking
                                                                                             1


                           1.00                 0.67*       0.86*            0.74*                0.40*

                Inference         Recognition            Deduction           Interpretation        Evaluation of
                                  of                                                               Arguments
                                  Assumption
                      7.37*              2.02*                  6.16*                 5.02*                3.57*
                EPSILON1             EPSILON2             EPSILON3              EPSILON4             EPSILON5




     1.   How many measurement models are shown?
     2.   How are the two measurement models linked in the figure?
     3.   Where are the errors located in the figure?
     4.   What the things interpreted in the figure?
Structural Equations Modeling
Goes   beyond regression models: Test several variables
and latent constructs with their underlying manifest
variables.
Provide a way to test the specified set of relationships
among observed and latent variables as a whole and
allow theory testing for causality even when
independent variables are not experimentally
manipulated
Theentire model is tested if the data fits the specified
model.
Takes   into account errors of measurement.
Variables in a Structural Model:

3.   Manifest variables: Directly observed or measured.
     Boxes are used to denote manifest variables.
4.   Latent variables: Not directly observed; we learn about
     them through the manifest variables that are supposed
     to “represent” them. Ovals are used to denote latent
     variables.
Symbols used in Structural Models

      Manifest Variable


      Latent Variable


      Direction of an
      effect/Parameter Estimate

      Relationship/Covariance
Some Levels of Analyzing Structural Models:
2. Confirmatory factor analysis
3. Causal modeling or path analysis
  •   Independent/exogenous variables
  •   Dependent/endogenous variables
Confirmatory Factor Analysis
  Example 3

                2.63*   Organization and
       Delta1           Planning                2.201*
                2.11*
       Delta2           Learner-
                        Centeredness          2.95*
                2.43*                                    Set 1
       Delta3           Evaluation            1.99*

                2.74*                         2.00*               1.00
       Delta4           Communication

                4.10*
       Delta5           Student Interaction
                                              2.83*
                2.93*                                     Set 2
       Delta6           Course Outcome        3.03*

                5.79*                         3.80*
       Delta7           Teaching method




   Common Factor Model/Multifactor Model
1. What critical estimate is determined in a common factor model?
2. When do we say that set 1 and set 2 are common factors?
Confirmatory Factor Analysis
Example 4

            2.11*    Evaluation            1.996*
   Delta1
            2.74*                          2.00*    Set 1
   Delta2            Communication

            2.33*                                           1.00
   Delta3            Learner-              2.20*
                     Centeredness                   Set 2
            2.43*                          2.95*                   1.00
   Delta4            Organization & Plan
                                                            1.00
            4.10*
   Delta5            Course Outcome
                                           2.83*
            5.79*
   Delta6            Student Interaction   3.80*    Set 3
            2.93*                          3.03*
   Delta7            Teaching method




                    Common Factor Model/
                           Multifactor Model
Path Model (Example 5)
               Self-efficacy
                                 .48*
                                                   E
                                                   1
                                                       1.0
                                 .28*
              Deep Approach                   Metacognition


                                .20*


             Surface Approach




    χ2=10.03, df=3, χ2/df=3.34, GFI (.98), adjusted GFI (.92), RMSEA= .08


   1. What type of variables are studies in a path model?
   2. What is the difference between a path and a structural
      model?
   3. What is the similarity between a path and structural model?
   4. Where is the error located?
Structural Equations Model (Example 6)
         DELTA           DELTA             DELTA           DELTA          DELTA               DELTA
         2               3                 4               5              6                   7

              100.43          71.46           57.11           34.94             71.92            88.10
              *
        Conditional           *
                         Procedural           *
                                           Planni             *
                                                          Monitori              *
                                                                          Information            *
                                                                                              Debugging
        Knowledge        Knowledge                                        Manageme            Strategy
                                           ng             ng              nt
                                                       6.88*
                                7.07*       9.25*             7.91*
                                                                                  7.24*
         Declarative        9.03*                                                             Evaluati
         Knowledge
                              6.27*                                                           on
                                                    Metacogniti         25.12
              82.57                                 on                  *                          78.39
              *
           DELTA                                                                                   *
                                                                                                DELTA
           1                                                                                    8
                                                             2.10*
                                                                      5.19*
                                                      Critical
                                                                                    ZETA
                                                     Thinking
                                                                                      1


                                            0.67*        0.86*       0.74*                 0.40*

           Inferen          Recognition              Deductio        Interpretati           Evaluation
           ce               of                       n               on                     of
                            Assumption                                                      Argument
                 7.27*             2.06*                     6.15*           5.03*          s     3.57*
           EPSILON               EPSILON               EPSILON         EPSILON                EPSILON
           1                     2                     3               4                      5


1. What variable is exogenous?
2. What variable is endogenous?
Path Model (Example 7 & 8)
                                                    E
                                                    1
                                                          1.0

                                            Self-efficacy
Example 7                           .17*                        .51*        E
                                                                            2
                                                                                 1.0
                                                   .30*
                   School Ability                                      Metacognition




                                                                             E
                    Self-efficacy
                                                                             4
                                            .51*                                  1.0

                                                                       Metacognition
Example 8          School Ability
                                           .30*


                   Self-efficacy

                         X

                   School Ability



            1.   What is being demonstrated by self-efficacy in the example 7?
            2.   What is the difference between example 7 and example 8?
Path & Structural Model
                                   43.38
                              e3                                       65.22
                              1
                                                                  e2
                              RC                                    1
                           109.18
                                     .90
                      e4                                  Self-efficacy
                                                    .60
                              1

 44.43
     1            1.00            metacog
e5           KC                                     .12
                                                                               .34
         78.52                                                                        215.43
             1
     e6          DA                                        -.04                      e1
                              1.60
                                                                                      1

                             Learning Approach               2.44
         58.85        1.00                                                     Achievement
             1                              1
     e7          SA                             -1.65

                                           e8
Procedures (Summary)
2. Specify the measurement models for the
   exogenous latent variables (i.e., which
   manifest variables represent which latent
   variables?)
3. Likewise, specify the measurement models
   for the endogenous latent variables.
4. Specify the paths from the exogenous to the
   endogenous latent variables.
DELTA: residuals of exogenous manifest
 variables
EPSILON: residuals of endogenous manifest
 variables
Testing for Goodness of Fit
   If the entire model approximates the
    population.
   The degree to which the solution fit the data
    would provide evidence for or against the prior
    hypothesis.
   A solution which fit well would lend support for
    the hypothesis and provide evidence for
    construct validity of the attributes and the
    hypothesized factorial structure of the domain
    as represented by the battery of attributes.
Goodness of Fit
 Noncentrality Interval Estimation
 Single Sample Goodness of fit Index
Goodness of     Estimate        Goodness of fit index    Estimate
fit index       required                                 required
RMSEA           .08 and below Joreskog GFI               .90 and above
                                Bentler-Bonett (1980)
                                Normed Fit Index
                                James-Mulaik-Brett
                                Parsimonious Fit Index
RMS             .08 and below Akaike Information         Compare nested
                              Criterion                  models
McDonald’s      .90 and above   Schwarz's Bayesian       Lowest value is
Index of                        Criterion                the best fitting
Noncentrality                                            model

                                Bollen's Rho
Population      .90 and above   Independence Model       Close to 0, not
Gamma Index                     Chi-square and df        significant
                                Browne-Cudeck Cross      Requires two
                                Validation Index         samples
Noncentrality Interval Estimation
   Represents a change of emphasis in
    assessing model fit. Instead of testing the
    hypothesis that the fit is perfect, we ask
    the questions (a) "How bad is the fit of
    our model to our statistical population?"
    and (b) "How accurately have we
    determined population badness-of-fit
    from our sample data."
Noncentrality Indices
 Steiger-Lind RMSEA -compensates for
  model parsimony by dividing the estimate
  of the population noncentrality
  parameter by the degrees of freedom.
  This ratio, in a sense, represents a "mean
  square badness-of-fit."
 Values of the RMSEA index below .05
  indicate good fit, and values below .01
  indicate outstanding fit
Noncentrality Indices
 McDonald's Index of Noncentrality-The
  index represents one approach to
  transforming the population noncentrality
  index F* into the range from 0 to 1.
 Good fit is indicated by values above .95.
Noncentrality Indices
 The Population Gamma Index- an
  estimate of the "population GFI," the
  value of the GFI that would be obtained if
  we could analyze the population
  covariance matrix Σ.
 For this index, good fit is indicated by
  values above .95.
Noncentrality Indices
   Adjusted Population Gamma Index
    (Joreskog AGFI) - estimate of the
    population GFI corrected for model
    parsimony. Good fit is indicated by values
    above .95.
Single Sample Goodness of fit Index
 Joreskog GFI. Values above .95 indicate
  good fit. This index is a negatively biased
  estimate of the population GFI, so it
  tends to produce a slightly pessimistic
  view of the quality of population fit.
 Joreskog AGFI.  Values above .95
  indicate good fit. This index is, like the
  GFI, a negatively biased estimate of its
  population equivalent.
Single Sample Goodness of fit Index
   Akaike Information Criterion. This
    criterion is useful primarily for deciding which
    of several nested models provides the best
    approximation to the data. When trying to
    decide between several nested models, choose
    the one with the smallest Akaike criterion.
   Schwarz's Bayesian Criterion. This
    criterion, like the Akaike, is used for deciding
    among several models in a nested sequence.
    When deciding among several nested models,
    choose the one with the smallest Schwarz
    criterion value.
Single Sample Goodness of fit Index
   Browne-Cudeck Cross Validation Index.
    Browne and Cudeck (1989) proposed a single
    sample cross-validation index as a follow-up to
    their earlier (Cudeck & Browne,1983). It
    requires two samples, i.e., the calibration
    sample for fitting the models, and the cross-
    validation sample.
    Independence Model Chi-square and df.
    These are the Chi-square goodness-of-fit
    statistic, and associated degrees of freedom, for
    the hypothesis that the population covariances
    are all zero.
Single Sample Goodness of fit Index
 Bentler-Bonett (1980) Normed Fit Index.
  measures the relative decrease in the discrepancy
  function caused by switching from a "Null Model" or
  baseline model, to a more complex model. This index
  approaches 1 in value as fit becomes perfect. However,
  it does not compensate for model parsimony.
 Bentler-Bonett Non-Normed Fit Index. This
  comparative index takes into account model parsimony.
 Bentler Comparative Fit Index. This comparative
  index estimates the relative decrease in population
  noncentrality obtained by changing from the "Null
  Model" to the k'th model.
Single Sample Goodness of fit Index
   James-Mulaik-Brett Parsimonious Fit Index.
    Compensate for model parsimony. Basically, it
    operates by rescaling the Bentler-Bonnet Normed fit
    index to compensate for model parsimony.
   Bollen's Rho. This comparative fit index computes
    the relative reduction in the discrepancy function
    per degree of freedom when moving from the "Null
    Model" to the k'th model.
   Bollen's Delta. This index is similar in form to the
    Bentler-Bonnet index, but rewards simpler models
    (those with higher degrees of freedom).
Noncentrality Estimates
(SIR-NSTP Models)
                        Model 1                   Model 2                   Model 3
                         Point            Lower    Point                     Point
                Lower    Estim    Upper      90    Estim    Upper   Lower    Estim    Upper
Noncentrality    90%         at    90%        %        at    90%     90%         at    90%
Fit indices       CI         e      CI     CI          e      CI      CI         e      CI
Population
Noncentrality
Parameter       0.156    0.222    0.303   0.158    0.224    0.305   0.162    0.228    0.31
Steiger-Lind
RMSEA Index     0.106    0.126    0.147   0.11     0.131    0.153   0.121    0.144    0.168
McDonald
Noncentrality
   Index        0.859    0.895    0.925   0.859    0.894    0.924   0.857    0.892    0.922
Population
Gamma Index     0.92     0.94     0.957   0.92     0.94     0.957   0.919    0.939    0.956
Adjusted
    Populatio
    n
Gamma Index     0.841    0.881    0.914   0.827    0.87     0.907   0.793    0.844    0.887
Example
(metacognition and critical thinking)
Sing Sample Fit Indices        Model 1   Model 2
Joreskog GFI                   0.926     0.915
Joreskog AGFI                  0.841     0.879
Akaike Information Criterion   0.394     0.817
Schwarz's Bayesian Criterion   0.612     1.210
Browne-Cudeck Cross            0.398     0.831
Validation Index
Independence Model Chi-        786.533   1382.03
Square                                   4
Independence Model df          21.000    78.000
Single Sample Fit Indicers   Model 1 Model 2
Bentler-Bonett Normed Fit     0.919   0.898
Index
Bentler-Bonett Non-Normed Fit 0.892   0.928
Index
Bentler Comparative Fit Index 0.933   0.941
James-Mulaik-Brett           0.569    0.737
Parsimonious Fit Index
Bollen's Rho                 0.868    0.875
Bollen's Delta               0.934    0.941
Reference for the Goodness of fit
for CFA
StatSoft, Inc. (2005). STATISTICA electronic
  manual. Tulsa OK: Author.
Arbuckle, J. L. (2005). Amos: 6.0 User’s
  guide. USA: Amos Development Corp.

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Sem lecture

  • 1. Measurement and Structure Models Carlo Magno, PhD Counseling and Educational Psychology Department De La Salle University-Manila
  • 2. Bivariate linear regression Y = a + BX Multiple regression Y = a + B1X1 + B2X2 + B2X3 Path Model Y = B1X1 + B2X2 + e1 Structural Equations Model F2 = B1F1 + e1
  • 3. Example 1 2.63* Organization and Delta1 Planning 2.201* 4.10* Delta2 Student Interaction 2.83* 2.11* Delta3 Evaluation 1.99* Teacher 5.79* 3.80* Performance in Instructional NSTP Delta4 Methods 3.03* 2.93* Delta5 Course Outcome 2.95* 2.45* Delta6 Learner- 2.00* centeredness Delta7 2.74* Communication X2=3.42, GFI=.97, RMSEA=.01 What do you call this model? What analysis is used in this model? What are the three things that you interpret in this model?
  • 4. Example 2 DELTA2 DELTA2 25.12* 17.69* KC RC 7.22* 7.86* Metacognition 2.12* X2=4.51, GFI=.99, RMSEA=.00 5.00* Critical ZETA Thinking 1 1.00 0.67* 0.86* 0.74* 0.40* Inference Recognition Deduction Interpretation Evaluation of of Arguments Assumption 7.37* 2.02* 6.16* 5.02* 3.57* EPSILON1 EPSILON2 EPSILON3 EPSILON4 EPSILON5 1. How many measurement models are shown? 2. How are the two measurement models linked in the figure? 3. Where are the errors located in the figure? 4. What the things interpreted in the figure?
  • 5. Structural Equations Modeling Goes beyond regression models: Test several variables and latent constructs with their underlying manifest variables. Provide a way to test the specified set of relationships among observed and latent variables as a whole and allow theory testing for causality even when independent variables are not experimentally manipulated Theentire model is tested if the data fits the specified model. Takes into account errors of measurement.
  • 6. Variables in a Structural Model: 3. Manifest variables: Directly observed or measured. Boxes are used to denote manifest variables. 4. Latent variables: Not directly observed; we learn about them through the manifest variables that are supposed to “represent” them. Ovals are used to denote latent variables.
  • 7. Symbols used in Structural Models Manifest Variable Latent Variable Direction of an effect/Parameter Estimate Relationship/Covariance
  • 8. Some Levels of Analyzing Structural Models: 2. Confirmatory factor analysis 3. Causal modeling or path analysis • Independent/exogenous variables • Dependent/endogenous variables
  • 9. Confirmatory Factor Analysis Example 3 2.63* Organization and Delta1 Planning 2.201* 2.11* Delta2 Learner- Centeredness 2.95* 2.43* Set 1 Delta3 Evaluation 1.99* 2.74* 2.00* 1.00 Delta4 Communication 4.10* Delta5 Student Interaction 2.83* 2.93* Set 2 Delta6 Course Outcome 3.03* 5.79* 3.80* Delta7 Teaching method Common Factor Model/Multifactor Model 1. What critical estimate is determined in a common factor model? 2. When do we say that set 1 and set 2 are common factors?
  • 10. Confirmatory Factor Analysis Example 4 2.11* Evaluation 1.996* Delta1 2.74* 2.00* Set 1 Delta2 Communication 2.33* 1.00 Delta3 Learner- 2.20* Centeredness Set 2 2.43* 2.95* 1.00 Delta4 Organization & Plan 1.00 4.10* Delta5 Course Outcome 2.83* 5.79* Delta6 Student Interaction 3.80* Set 3 2.93* 3.03* Delta7 Teaching method Common Factor Model/ Multifactor Model
  • 11. Path Model (Example 5) Self-efficacy .48* E 1 1.0 .28* Deep Approach Metacognition .20* Surface Approach χ2=10.03, df=3, χ2/df=3.34, GFI (.98), adjusted GFI (.92), RMSEA= .08 1. What type of variables are studies in a path model? 2. What is the difference between a path and a structural model? 3. What is the similarity between a path and structural model? 4. Where is the error located?
  • 12. Structural Equations Model (Example 6) DELTA DELTA DELTA DELTA DELTA DELTA 2 3 4 5 6 7 100.43 71.46 57.11 34.94 71.92 88.10 * Conditional * Procedural * Planni * Monitori * Information * Debugging Knowledge Knowledge Manageme Strategy ng ng nt 6.88* 7.07* 9.25* 7.91* 7.24* Declarative 9.03* Evaluati Knowledge 6.27* on Metacogniti 25.12 82.57 on * 78.39 * DELTA * DELTA 1 8 2.10* 5.19* Critical ZETA Thinking 1 0.67* 0.86* 0.74* 0.40* Inferen Recognition Deductio Interpretati Evaluation ce of n on of Assumption Argument 7.27* 2.06* 6.15* 5.03* s 3.57* EPSILON EPSILON EPSILON EPSILON EPSILON 1 2 3 4 5 1. What variable is exogenous? 2. What variable is endogenous?
  • 13. Path Model (Example 7 & 8) E 1 1.0 Self-efficacy Example 7 .17* .51* E 2 1.0 .30* School Ability Metacognition E Self-efficacy 4 .51* 1.0 Metacognition Example 8 School Ability .30* Self-efficacy X School Ability 1. What is being demonstrated by self-efficacy in the example 7? 2. What is the difference between example 7 and example 8?
  • 14. Path & Structural Model 43.38 e3 65.22 1 e2 RC 1 109.18 .90 e4 Self-efficacy .60 1 44.43 1 1.00 metacog e5 KC .12 .34 78.52 215.43 1 e6 DA -.04 e1 1.60 1 Learning Approach 2.44 58.85 1.00 Achievement 1 1 e7 SA -1.65 e8
  • 15. Procedures (Summary) 2. Specify the measurement models for the exogenous latent variables (i.e., which manifest variables represent which latent variables?) 3. Likewise, specify the measurement models for the endogenous latent variables. 4. Specify the paths from the exogenous to the endogenous latent variables.
  • 16. DELTA: residuals of exogenous manifest variables EPSILON: residuals of endogenous manifest variables
  • 17. Testing for Goodness of Fit  If the entire model approximates the population.  The degree to which the solution fit the data would provide evidence for or against the prior hypothesis.  A solution which fit well would lend support for the hypothesis and provide evidence for construct validity of the attributes and the hypothesized factorial structure of the domain as represented by the battery of attributes.
  • 18. Goodness of Fit  Noncentrality Interval Estimation  Single Sample Goodness of fit Index
  • 19. Goodness of Estimate Goodness of fit index Estimate fit index required required RMSEA .08 and below Joreskog GFI .90 and above Bentler-Bonett (1980) Normed Fit Index James-Mulaik-Brett Parsimonious Fit Index RMS .08 and below Akaike Information Compare nested Criterion models McDonald’s .90 and above Schwarz's Bayesian Lowest value is Index of Criterion the best fitting Noncentrality model Bollen's Rho Population .90 and above Independence Model Close to 0, not Gamma Index Chi-square and df significant Browne-Cudeck Cross Requires two Validation Index samples
  • 20. Noncentrality Interval Estimation  Represents a change of emphasis in assessing model fit. Instead of testing the hypothesis that the fit is perfect, we ask the questions (a) "How bad is the fit of our model to our statistical population?" and (b) "How accurately have we determined population badness-of-fit from our sample data."
  • 21. Noncentrality Indices  Steiger-Lind RMSEA -compensates for model parsimony by dividing the estimate of the population noncentrality parameter by the degrees of freedom. This ratio, in a sense, represents a "mean square badness-of-fit."  Values of the RMSEA index below .05 indicate good fit, and values below .01 indicate outstanding fit
  • 22. Noncentrality Indices  McDonald's Index of Noncentrality-The index represents one approach to transforming the population noncentrality index F* into the range from 0 to 1.  Good fit is indicated by values above .95.
  • 23. Noncentrality Indices  The Population Gamma Index- an estimate of the "population GFI," the value of the GFI that would be obtained if we could analyze the population covariance matrix Σ.  For this index, good fit is indicated by values above .95.
  • 24. Noncentrality Indices  Adjusted Population Gamma Index (Joreskog AGFI) - estimate of the population GFI corrected for model parsimony. Good fit is indicated by values above .95.
  • 25. Single Sample Goodness of fit Index  Joreskog GFI. Values above .95 indicate good fit. This index is a negatively biased estimate of the population GFI, so it tends to produce a slightly pessimistic view of the quality of population fit.  Joreskog AGFI.  Values above .95 indicate good fit. This index is, like the GFI, a negatively biased estimate of its population equivalent.
  • 26. Single Sample Goodness of fit Index  Akaike Information Criterion. This criterion is useful primarily for deciding which of several nested models provides the best approximation to the data. When trying to decide between several nested models, choose the one with the smallest Akaike criterion.  Schwarz's Bayesian Criterion. This criterion, like the Akaike, is used for deciding among several models in a nested sequence. When deciding among several nested models, choose the one with the smallest Schwarz criterion value.
  • 27. Single Sample Goodness of fit Index  Browne-Cudeck Cross Validation Index. Browne and Cudeck (1989) proposed a single sample cross-validation index as a follow-up to their earlier (Cudeck & Browne,1983). It requires two samples, i.e., the calibration sample for fitting the models, and the cross- validation sample.  Independence Model Chi-square and df. These are the Chi-square goodness-of-fit statistic, and associated degrees of freedom, for the hypothesis that the population covariances are all zero.
  • 28. Single Sample Goodness of fit Index  Bentler-Bonett (1980) Normed Fit Index. measures the relative decrease in the discrepancy function caused by switching from a "Null Model" or baseline model, to a more complex model. This index approaches 1 in value as fit becomes perfect. However, it does not compensate for model parsimony.  Bentler-Bonett Non-Normed Fit Index. This comparative index takes into account model parsimony.  Bentler Comparative Fit Index. This comparative index estimates the relative decrease in population noncentrality obtained by changing from the "Null Model" to the k'th model.
  • 29. Single Sample Goodness of fit Index  James-Mulaik-Brett Parsimonious Fit Index. Compensate for model parsimony. Basically, it operates by rescaling the Bentler-Bonnet Normed fit index to compensate for model parsimony.  Bollen's Rho. This comparative fit index computes the relative reduction in the discrepancy function per degree of freedom when moving from the "Null Model" to the k'th model.  Bollen's Delta. This index is similar in form to the Bentler-Bonnet index, but rewards simpler models (those with higher degrees of freedom).
  • 30. Noncentrality Estimates (SIR-NSTP Models) Model 1 Model 2 Model 3 Point Lower Point Point Lower Estim Upper 90 Estim Upper Lower Estim Upper Noncentrality 90% at 90% % at 90% 90% at 90% Fit indices CI e CI CI e CI CI e CI Population Noncentrality Parameter 0.156 0.222 0.303 0.158 0.224 0.305 0.162 0.228 0.31 Steiger-Lind RMSEA Index 0.106 0.126 0.147 0.11 0.131 0.153 0.121 0.144 0.168 McDonald Noncentrality Index 0.859 0.895 0.925 0.859 0.894 0.924 0.857 0.892 0.922 Population Gamma Index 0.92 0.94 0.957 0.92 0.94 0.957 0.919 0.939 0.956 Adjusted Populatio n Gamma Index 0.841 0.881 0.914 0.827 0.87 0.907 0.793 0.844 0.887
  • 31. Example (metacognition and critical thinking) Sing Sample Fit Indices Model 1 Model 2 Joreskog GFI 0.926 0.915 Joreskog AGFI 0.841 0.879 Akaike Information Criterion 0.394 0.817 Schwarz's Bayesian Criterion 0.612 1.210 Browne-Cudeck Cross 0.398 0.831 Validation Index Independence Model Chi- 786.533 1382.03 Square 4 Independence Model df 21.000 78.000
  • 32. Single Sample Fit Indicers Model 1 Model 2 Bentler-Bonett Normed Fit 0.919 0.898 Index Bentler-Bonett Non-Normed Fit 0.892 0.928 Index Bentler Comparative Fit Index 0.933 0.941 James-Mulaik-Brett 0.569 0.737 Parsimonious Fit Index Bollen's Rho 0.868 0.875 Bollen's Delta 0.934 0.941
  • 33. Reference for the Goodness of fit for CFA StatSoft, Inc. (2005). STATISTICA electronic manual. Tulsa OK: Author. Arbuckle, J. L. (2005). Amos: 6.0 User’s guide. USA: Amos Development Corp.