Mplus VERSION 6
MUTHEN & MUTHEN
04/25/2010  11:39 PM

INPUT INSTRUCTIONS

  variable:
          names = u1-u6 g;
          categorical = u1-u6;
        grouping= g(1=G1 2=G2);

  data: file is mcdiff.dat;

  analysis:
          type = meanstructure;

  model:

          f by u1-u6;
          f*0.49; [f@0]; {u1-u6@1};
          [u1$1-u6$1*-1];
          [u1$2-u6$2*1];

  model g2:

          f by u1@1 u2-u6*1;
          f*0.49; [f@0]; {u1-u6@1};
          [u1$1-u6$1*-1];
          [u1$2-u6$2*1];

  savedata: DIFFTEST=t.dat;

  output:tech1;



*** WARNING in ANALYSIS command
  Starting with Version 5, TYPE=MEANSTRUCTURE is the default for all
  analyses.  To remove means from the model, use
  MODEL=NOMEANSTRUCTURE in the ANALYSIS command.
   1 WARNING(S) FOUND IN THE INPUT INSTRUCTIONS




SUMMARY OF ANALYSIS

Number of groups                                                 2
Number of observations
   Group G1                                                    500
   Group G2                                                    600

Number of dependent variables                                    6
Number of independent variables                                  0
Number of continuous latent variables                            1

Observed dependent variables

  Binary and ordered categorical (ordinal)
   U1          U2          U3          U4          U5          U6

Continuous latent variables
   F

Variables with special functions

  Grouping variable     G

Estimator                                                    WLSMV
Maximum number of iterations                                  1000
Convergence criterion                                    0.500D-04
Maximum number of steepest descent iterations                   20
Parameterization                                             DELTA

Input data file(s)
  mcdiff.dat

Input data format  FREE


UNIVARIATE PROPORTIONS AND COUNTS FOR CATEGORICAL VARIABLES

  Group G1
    U1
      Category 1    0.186       93.000
      Category 2    0.706      353.000
      Category 3    0.108       54.000
    U2
      Category 1    0.160       80.000
      Category 2    0.720      360.000
      Category 3    0.120       60.000
    U3
      Category 1    0.170       85.000
      Category 2    0.684      342.000
      Category 3    0.146       73.000
    U4
      Category 1    0.178       89.000
      Category 2    0.676      338.000
      Category 3    0.146       73.000
    U5
      Category 1    0.174       87.000
      Category 2    0.676      338.000
      Category 3    0.150       75.000
    U6
      Category 1    0.170       85.000
      Category 2    0.688      344.000
      Category 3    0.142       71.000

  Group G2
    U1
      Category 1    0.347      208.000
      Category 2    0.345      207.000
      Category 3    0.308      185.000
    U2
      Category 1    0.333      200.000
      Category 2    0.382      229.000
      Category 3    0.285      171.000
    U3
      Category 1    0.302      181.000
      Category 2    0.385      231.000
      Category 3    0.313      188.000
    U4
      Category 1    0.295      177.000
      Category 2    0.363      218.000
      Category 3    0.342      205.000
    U5
      Category 1    0.342      205.000
      Category 2    0.368      221.000
      Category 3    0.290      174.000
    U6
      Category 1    0.305      183.000
      Category 2    0.372      223.000
      Category 3    0.323      194.000



THE MODEL ESTIMATION TERMINATED NORMALLY



TESTS OF MODEL FIT

Chi-Square Test of Model Fit

          Value                             16.283*
          Degrees of Freedom                    18
          P-Value                           0.5728

Chi-Square Contributions From Each Group

          G1                                 9.889
          G2                                 6.394

*   The chi-square value for MLM, MLMV, MLR, ULSMV, WLSM and WLSMV cannot be used
    for chi-square difference testing in the regular way.  MLM, MLR and WLSM
    chi-square difference testing is described on the Mplus website.  MLMV, WLSMV,
    and ULSMV difference testing is done using the DIFFTEST option.

Chi-Square Test of Model Fit for the Baseline Model

          Value                           1089.262
          Degrees of Freedom                    30
          P-Value                           0.0000

CFI/TLI

          CFI                                1.000
          TLI                                1.003

Number of Free Parameters                       36

RMSEA (Root Mean Square Error Of Approximation)

          Estimate                           0.000

WRMR (Weighted Root Mean Square Residual)

          Value                              0.658



MODEL RESULTS

                                                    Two-Tailed
                    Estimate       S.E.  Est./S.E.    P-Value

Group G1

 F        BY
    U1                 1.000      0.000    999.000    999.000
    U2                 1.054      0.092     11.452      0.000
    U3                 0.982      0.090     10.942      0.000
    U4                 0.913      0.085     10.682      0.000
    U5                 0.987      0.089     11.140      0.000
    U6                 0.966      0.085     11.425      0.000

 Means
    F                  0.000      0.000    999.000    999.000

 Thresholds
    U1$1              -0.893      0.065    -13.737      0.000
    U1$2               1.237      0.075     16.539      0.000
    U2$1              -0.994      0.067    -14.758      0.000
    U2$2               1.175      0.073     16.177      0.000
    U3$1              -0.954      0.066    -14.374      0.000
    U3$2               1.054      0.069     15.277      0.000
    U4$1              -0.923      0.066    -14.059      0.000
    U4$2               1.054      0.069     15.277      0.000
    U5$1              -0.939      0.066    -14.218      0.000
    U5$2               1.036      0.068     15.131      0.000
    U6$1              -0.954      0.066    -14.374      0.000
    U6$2               1.071      0.069     15.422      0.000

 Variances
    F                  0.466      0.061      7.671      0.000

 Scales
    U1                 1.000      0.000    999.000    999.000
    U2                 1.000      0.000    999.000    999.000
    U3                 1.000      0.000    999.000    999.000
    U4                 1.000      0.000    999.000    999.000
    U5                 1.000      0.000    999.000    999.000
    U6                 1.000      0.000    999.000    999.000

Group G2

 F        BY
    U1                 1.000      0.000    999.000    999.000
    U2                 0.519      0.215      2.409      0.016
    U3                 0.864      0.265      3.260      0.001
    U4                 0.994      0.295      3.365      0.001
    U5                 0.899      0.278      3.239      0.001
    U6                 1.202      0.328      3.667      0.000

 Means
    F                  0.000      0.000    999.000    999.000

 Thresholds
    U1$1              -0.394      0.053     -7.492      0.000
    U1$2               0.501      0.054      9.345      0.000
    U2$1              -0.431      0.053     -8.137      0.000
    U2$2               0.568      0.054     10.465      0.000
    U3$1              -0.520      0.054     -9.666      0.000
    U3$2               0.486      0.053      9.104      0.000
    U4$1              -0.539      0.054     -9.987      0.000
    U4$2               0.408      0.053      7.734      0.000
    U5$1              -0.408      0.053     -7.734      0.000
    U5$2               0.553      0.054     10.226      0.000
    U6$1              -0.510      0.054     -9.506      0.000
    U6$2               0.458      0.053      8.621      0.000

 Variances
    F                  0.141      0.056      2.510      0.012

 Scales
    U1                 1.000      0.000    999.000    999.000
    U2                 1.000      0.000    999.000    999.000
    U3                 1.000      0.000    999.000    999.000
    U4                 1.000      0.000    999.000    999.000
    U5                 1.000      0.000    999.000    999.000
    U6                 1.000      0.000    999.000    999.000


R-SQUARE

Group G1

    Observed                   Residual
    Variable        Estimate   Variance

    U1                 0.466      0.534
    U2                 0.517      0.483
    U3                 0.449      0.551
    U4                 0.388      0.612
    U5                 0.453      0.547
    U6                 0.435      0.565

Group G2

    Observed                   Residual
    Variable        Estimate   Variance

    U1                 0.141      0.859
    U2                 0.038      0.962
    U3                 0.106      0.894
    U4                 0.140      0.860
    U5                 0.114      0.886
    U6                 0.205      0.795


QUALITY OF NUMERICAL RESULTS

     Condition Number for the Information Matrix              0.808E-03
       (ratio of smallest to largest eigenvalue)


TECHNICAL 1 OUTPUT


     PARAMETER SPECIFICATION FOR G1


           TAU
              U1$1          U1$2          U2$1          U2$2          U3$1
              ________      ________      ________      ________      ________
      1           1             2             3             4             5


           TAU
              U3$2          U4$1          U4$2          U5$1          U5$2
              ________      ________      ________      ________      ________
      1           6             7             8             9            10


           TAU
              U6$1          U6$2
              ________      ________
      1          11            12


           NU
              U1            U2            U3            U4            U5
              ________      ________      ________      ________      ________
      1           0             0             0             0             0


           NU
              U6
              ________
      1           0


           LAMBDA
              F
              ________
 U1                 0
 U2                13
 U3                14
 U4                15
 U5                16
 U6                17


           ALPHA
              F
              ________
      1           0


           BETA
              F
              ________
 F                  0


           PSI
              F
              ________
 F                 18


           DELTA
              U1            U2            U3            U4            U5
              ________      ________      ________      ________      ________
      1           0             0             0             0             0


           DELTA
              U6
              ________
      1           0


     PARAMETER SPECIFICATION FOR G2


           TAU
              U1$1          U1$2          U2$1          U2$2          U3$1
              ________      ________      ________      ________      ________
      1          19            20            21            22            23


           TAU
              U3$2          U4$1          U4$2          U5$1          U5$2
              ________      ________      ________      ________      ________
      1          24            25            26            27            28


           TAU
              U6$1          U6$2
              ________      ________
      1          29            30


           NU
              U1            U2            U3            U4            U5
              ________      ________      ________      ________      ________
      1           0             0             0             0             0


           NU
              U6
              ________
      1           0


           LAMBDA
              F
              ________
 U1                 0
 U2                31
 U3                32
 U4                33
 U5                34
 U6                35


           ALPHA
              F
              ________
      1           0


           BETA
              F
              ________
 F                  0


           PSI
              F
              ________
 F                 36


           DELTA
              U1            U2            U3            U4            U5
              ________      ________      ________      ________      ________
      1           0             0             0             0             0


           DELTA
              U6
              ________
      1           0


     STARTING VALUES FOR G1


           TAU
              U1$1          U1$2          U2$1          U2$2          U3$1
              ________      ________      ________      ________      ________
      1        -1.000         1.000        -1.000         1.000        -1.000


           TAU
              U3$2          U4$1          U4$2          U5$1          U5$2
              ________      ________      ________      ________      ________
      1         1.000        -1.000         1.000        -1.000         1.000


           TAU
              U6$1          U6$2
              ________      ________
      1        -1.000         1.000


           NU
              U1            U2            U3            U4            U5
              ________      ________      ________      ________      ________
      1         0.000         0.000         0.000         0.000         0.000


           NU
              U6
              ________
      1         0.000


           LAMBDA
              F
              ________
 U1             1.000
 U2             0.987
 U3             0.920
 U4             0.816
 U5             0.958
 U6             0.908


           ALPHA
              F
              ________
      1         0.000


           BETA
              F
              ________
 F              0.000


           PSI
              F
              ________
 F              0.490


           DELTA
              U1            U2            U3            U4            U5
              ________      ________      ________      ________      ________
      1         1.000         1.000         1.000         1.000         1.000


           DELTA
              U6
              ________
      1         1.000


     STARTING VALUES FOR G2


           TAU
              U1$1          U1$2          U2$1          U2$2          U3$1
              ________      ________      ________      ________      ________
      1        -1.000         1.000        -1.000         1.000        -1.000


           TAU
              U3$2          U4$1          U4$2          U5$1          U5$2
              ________      ________      ________      ________      ________
      1         1.000        -1.000         1.000        -1.000         1.000


           TAU
              U6$1          U6$2
              ________      ________
      1        -1.000         1.000


           NU
              U1            U2            U3            U4            U5
              ________      ________      ________      ________      ________
      1         0.000         0.000         0.000         0.000         0.000


           NU
              U6
              ________
      1         0.000


           LAMBDA
              F
              ________
 U1             1.000
 U2             0.578
 U3             0.772
 U4             0.773
 U5             0.723
 U6             1.070


           ALPHA
              F
              ________
      1         0.000


           BETA
              F
              ________
 F              0.000


           PSI
              F
              ________
 F              0.490


           DELTA
              U1            U2            U3            U4            U5
              ________      ________      ________      ________      ________
      1         1.000         1.000         1.000         1.000         1.000


           DELTA
              U6
              ________
      1         1.000


SAVEDATA INFORMATION


  Difference testing

  Save file
    t.dat
  Save format      Free

     Beginning Time:  23:39:09
        Ending Time:  23:39:09
       Elapsed Time:  00:00:00



MUTHEN & MUTHEN
3463 Stoner Ave.
Los Angeles, CA  90066

Tel: (310) 391-9971
Fax: (310) 391-8971
Web: www.StatModel.com
Support: Support@StatModel.com

Copyright (c) 1998-2010 Muthen & Muthen

Back to table of examples