Mplus VERSION 5.1
MUTHEN & MUTHEN
05/05/2008 9:48 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
SUMMARY OF CATEGORICAL DATA PROPORTIONS
Group G1
U1
Category 1 0.186
Category 2 0.706
Category 3 0.108
U2
Category 1 0.160
Category 2 0.720
Category 3 0.120
U3
Category 1 0.170
Category 2 0.684
Category 3 0.146
U4
Category 1 0.178
Category 2 0.676
Category 3 0.146
U5
Category 1 0.174
Category 2 0.676
Category 3 0.150
U6
Category 1 0.170
Category 2 0.688
Category 3 0.142
Group G2
U1
Category 1 0.347
Category 2 0.345
Category 3 0.308
U2
Category 1 0.333
Category 2 0.382
Category 3 0.285
U3
Category 1 0.302
Category 2 0.385
Category 3 0.313
U4
Category 1 0.295
Category 2 0.363
Category 3 0.342
U5
Category 1 0.342
Category 2 0.368
Category 3 0.290
U6
Category 1 0.305
Category 2 0.372
Category 3 0.323
THE MODEL ESTIMATION TERMINATED NORMALLY
TESTS OF MODEL FIT
Chi-Square Test of Model Fit
Value 15.327*
Degrees of Freedom 17**
P-Value 0.5720
Chi-Square Contributions From Each Group
G1 9.308
G2 6.018
* The chi-square value for MLM, MLMV, MLR, ULSMV, WLSM and WLSMV cannot be used
for chi-square difference tests. MLM, MLR and WLSM chi-square difference
testing is described in the Mplus Technical Appendices at www.statmodel.com.
See chi-square difference testing in the index of the Mplus User's Guide.
** The degrees of freedom for MLMV, ULSMV and WLSMV are estimated according to
a formula given in the Mplus Technical Appendices at www.statmodel.com.
See degrees of freedom in the index of the Mplus User's Guide.
Chi-Square Test of Model Fit for the Baseline Model
Value 955.057
Degrees of Freedom 23
P-Value 0.0000
CFI/TLI
CFI 1.000
TLI 1.002
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 11.450 0.000
U3 0.983 0.090 10.940 0.000
U4 0.913 0.086 10.681 0.000
U5 0.987 0.089 11.139 0.000
U6 0.967 0.085 11.424 0.000
Means
F 0.000 0.000 999.000 999.000
Thresholds
U1$1 -0.893 0.065 -13.741 0.000
U1$2 1.237 0.075 16.541 0.000
U2$1 -0.994 0.067 -14.758 0.000
U2$2 1.175 0.073 16.173 0.000
U3$1 -0.954 0.066 -14.373 0.000
U3$2 1.054 0.069 15.280 0.000
U4$1 -0.923 0.066 -14.059 0.000
U4$2 1.054 0.069 15.280 0.000
U5$1 -0.938 0.066 -14.217 0.000
U5$2 1.036 0.068 15.133 0.000
U6$1 -0.954 0.066 -14.373 0.000
U6$2 1.071 0.069 15.424 0.000
Variances
F 0.465 0.061 7.669 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 0.520 0.216 2.409 0.016
U3 0.865 0.266 3.259 0.001
U4 0.995 0.296 3.363 0.001
U5 0.902 0.278 3.240 0.001
U6 1.205 0.329 3.666 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 9.346 0.000
U2$1 -0.431 0.053 -8.137 0.000
U2$2 0.568 0.054 10.464 0.000
U3$1 -0.520 0.054 -9.667 0.000
U3$2 0.486 0.053 9.104 0.000
U4$1 -0.539 0.054 -9.986 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 10.225 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 2.507 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 0.465 0.535
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 0.115 0.885
U6 0.205 0.795
QUALITY OF NUMERICAL RESULTS
Condition Number for the Information Matrix 0.803E-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 1.000
U3 1.000
U4 1.000
U5 1.000
U6 1.000
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 1.000
U3 1.000
U4 1.000
U5 1.000
U6 1.000
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: 21:48:42
Ending Time: 21:48:43
Elapsed Time: 00:00:01
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