** Mx startup successful ** **MX-PC 1.52** Job started on 03/07/02 at 09:45:01 ! Rater Bias Model ! CBC data in US twins The following MX script lines were read for group 1 G1: MODEL PARAMETERS DATA CALC NGROUPS=3 BEGIN MATRICES; X LOWER 1 1 FREE ! GENETIC PATH, A, TO LATENT PHENOTYPE Y LOWER 1 1 FREE ! SHARED ENV PATH, C, TO LATENT PHENOTYPE Z LOWER 1 1 FREE ! NON-SHARED ENV PATH, E, TO LATENT PHENOTYPE B FULL 4 2 ! RATER BIAS PATHS (BETAS) F DIAG 4 4 ! RESIDUAL SPECIFIC VARIANCE RATINGS (RM, RF) S DIAG 2 2 ! PATH, ALPHA, FROM LATENT PHENOTYPE TO ! paternal rating, when the path from the ! latent phenotype to the maternal rating ! is set at 1.0 I IDEN 2 2 ! AN IDENTITY MATRIX FOR LATER USE END MATRICES; SPECIFY B 4 0 ! PARAMETER NUMBER 4 IS THE MATERNAL BIAS PATH 4 0 0 5 ! PARAMETER NUMBER 5 IS THE PATERNAL BIAS PATH 0 5 SPECIFY F 6 6 7 7 ! THIS SPECIFIES A RESIDUAL (ERROR) FOR THE ! maternal ratings (parameter number 6), and ! a residual error for the paternal ratings ! (parameter number 7) SPECIFY S 15 15 ! PARAMETER NUMBER 15 IS ALPHA BEGIN ALGEBRA; A= X*X' ; ! THESE SQUARE THE PATHS TO GIVE C= Y*Y' ; ! THE CORRESPONDING VARIANCE E= Z*Z' ; ! COMPONENTS R= B*B' ; ! J= F*F' ; ! END ALGEBRA; END The following MX script lines were read for group 2 G2: MZ BOYS TWIN PAIRS DATA NINPUT_VARS=4 NOBSERVATIONS=96 LABELS MORG_T1 MORG_T2 FARG_T1 FARG_T2 CMATRIX FILE=USCBCMZM.COV MATRICES= GROUP 1 COVARIANCES R+ J+ ((I_S)*(A+C+E | A+C _ A+C | A+C+E )*(I_S)') / ! ! ! In terms of the parameters in the model given in Figure 16.1, ! page 316 in Neale and Cardon, or in Figure 1, page 297, in ! Hewitt et al (1992) Analysis of parental ratings of children's ! behavior using LISREL, Behavior Genetics, 22:3, 293-317, ! this covariance matrix is: ! ! ! ! ! ! ! ! ! ! OPTION RSIDUAL END The following MX script lines were read for group 3 G3: DZ BOYS TWIN PAIRS DATA NINPUT_VARS=4 NOBSERVATIONS=102 LABELS MORG_T1 MORG_T2 FARG_T1 FARG_T2 CMATRIX FILE=USCBCDZM.COV MATRICES= GROUP 1 H FULL 1 1 COVARIANCES R+ J+ ((I_S)*(A+C+E | H@A+C _ H@A+C | A+C+E )*(I_S)') / ! This covariance matrix is the same as that ! for the MZs, except that for the off diagonal ! components involving a2, the a2 terms are ! multiplied by 0.5 MATRIX H .5 OPTION RSIDUAL OPTION NDECIMALS = 4 ITERATIONS = 200 END PARAMETER SPECIFICATIONS GROUP NUMBER: 1 G1: model parameters MATRIX A This is a computed FULL matrix of order 1 by 1 It has no free parameters specified MATRIX B This is a FULL matrix of order 4 by 2 1 2 1 4 0 2 4 0 3 0 5 4 0 5 MATRIX C This is a computed FULL matrix of order 1 by 1 It has no free parameters specified MATRIX E This is a computed FULL matrix of order 1 by 1 It has no free parameters specified MATRIX F This is a DIAGONAL matrix of order 4 by 4 1 2 3 4 1 6 2 0 6 3 0 0 7 4 0 0 0 7 MATRIX I This is an IDENTITY matrix of order 2 by 2 MATRIX J This is a computed FULL matrix of order 4 by 4 It has no free parameters specified MATRIX R This is a computed FULL matrix of order 4 by 4 It has no free parameters specified MATRIX S This is a DIAGONAL matrix of order 2 by 2 1 2 1 15 2 0 15 MATRIX X This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 1 MATRIX Y This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 2 MATRIX Z This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 3 GROUP NUMBER: 2 G2: MZ boys twin pairs MATRIX A This is a computed FULL matrix of order 1 by 1 It has no free parameters specified MATRIX B This is a FULL matrix of order 4 by 2 1 2 1 4 0 2 4 0 3 0 5 4 0 5 MATRIX C This is a computed FULL matrix of order 1 by 1 It has no free parameters specified MATRIX E This is a computed FULL matrix of order 1 by 1 It has no free parameters specified MATRIX F This is a DIAGONAL matrix of order 4 by 4 1 2 3 4 1 6 2 0 6 3 0 0 7 4 0 0 0 7 MATRIX I This is an IDENTITY matrix of order 2 by 2 MATRIX J This is a computed FULL matrix of order 4 by 4 It has no free parameters specified MATRIX R This is a computed FULL matrix of order 4 by 4 It has no free parameters specified MATRIX S This is a DIAGONAL matrix of order 2 by 2 1 2 1 15 2 0 15 MATRIX X This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 1 MATRIX Y This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 2 MATRIX Z This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 3 GROUP NUMBER: 3 G3: DZ boys twin pairs MATRIX A This is a computed FULL matrix of order 1 by 1 It has no free parameters specified MATRIX B This is a FULL matrix of order 4 by 2 1 2 1 4 0 2 4 0 3 0 5 4 0 5 MATRIX C This is a computed FULL matrix of order 1 by 1 It has no free parameters specified MATRIX E This is a computed FULL matrix of order 1 by 1 It has no free parameters specified MATRIX F This is a DIAGONAL matrix of order 4 by 4 1 2 3 4 1 6 2 0 6 3 0 0 7 4 0 0 0 7 MATRIX H This is a FULL matrix of order 1 by 1 It has no free parameters specified MATRIX I This is an IDENTITY matrix of order 2 by 2 MATRIX J This is a computed FULL matrix of order 4 by 4 It has no free parameters specified MATRIX R This is a computed FULL matrix of order 4 by 4 It has no free parameters specified MATRIX S This is a DIAGONAL matrix of order 2 by 2 1 2 1 15 2 0 15 MATRIX X This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 1 MATRIX Y This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 2 MATRIX Z This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 3 Mx starting optimization; number of parameters = 8 MX PARAMETER ESTIMATES GROUP NUMBER: 1 G1: model parameters MATRIX A This is a computed FULL matrix of order 1 by 1 [=X*X'] 1 1 0.2674 MATRIX B This is a FULL matrix of order 4 by 2 1 2 1 -0.3098 0.0000 2 -0.3098 0.0000 3 0.0000 0.5158 4 0.0000 0.5158 MATRIX C This is a computed FULL matrix of order 1 by 1 [=Y*Y'] 1 1 0.1204 MATRIX E This is a computed FULL matrix of order 1 by 1 [=Z*Z'] 1 1 0.0419 MATRIX F This is a DIAGONAL matrix of order 4 by 4 1 2 3 4 1 -0.2601 2 0.0000 -0.2601 3 0.0000 0.0000 0.4172 4 0.0000 0.0000 0.0000 0.4172 MATRIX I This is an IDENTITY matrix of order 2 by 2 MATRIX J This is a computed FULL matrix of order 4 by 4 [=F*F'] 1 2 3 4 1 0.0676 0.0000 0.0000 0.0000 2 0.0000 0.0676 0.0000 0.0000 3 0.0000 0.0000 0.1741 0.0000 4 0.0000 0.0000 0.0000 0.1741 MATRIX R This is a computed FULL matrix of order 4 by 4 [=B*B'] 1 2 3 4 1 0.0960 0.0960 0.0000 0.0000 2 0.0960 0.0960 0.0000 0.0000 3 0.0000 0.0000 0.2660 0.2660 4 0.0000 0.0000 0.2660 0.2660 MATRIX S This is a DIAGONAL matrix of order 2 by 2 1 2 1 0.6486 2 0.0000 0.6486 MATRIX X This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 -0.5171 MATRIX Y This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 -0.3470 MATRIX Z This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 -0.2046 GROUP NUMBER: 2 G2: MZ boys twin pairs MATRIX A This is a computed FULL matrix of order 1 by 1 [=X*X'] 1 1 0.2674 MATRIX B This is a FULL matrix of order 4 by 2 1 2 1 -0.3098 0.0000 2 -0.3098 0.0000 3 0.0000 0.5158 4 0.0000 0.5158 MATRIX C This is a computed FULL matrix of order 1 by 1 [=Y*Y'] 1 1 0.1204 MATRIX E This is a computed FULL matrix of order 1 by 1 [=Z*Z'] 1 1 0.0419 MATRIX F This is a DIAGONAL matrix of order 4 by 4 1 2 3 4 1 -0.2601 2 0.0000 -0.2601 3 0.0000 0.0000 0.4172 4 0.0000 0.0000 0.0000 0.4172 MATRIX I This is an IDENTITY matrix of order 2 by 2 MATRIX J This is a computed FULL matrix of order 4 by 4 [=F*F'] 1 2 3 4 1 0.0676 0.0000 0.0000 0.0000 2 0.0000 0.0676 0.0000 0.0000 3 0.0000 0.0000 0.1741 0.0000 4 0.0000 0.0000 0.0000 0.1741 MATRIX R This is a computed FULL matrix of order 4 by 4 [=B*B'] 1 2 3 4 1 0.0960 0.0960 0.0000 0.0000 2 0.0960 0.0960 0.0000 0.0000 3 0.0000 0.0000 0.2660 0.2660 4 0.0000 0.0000 0.2660 0.2660 MATRIX S This is a DIAGONAL matrix of order 2 by 2 1 2 1 0.6486 2 0.0000 0.6486 MATRIX X This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 -0.5171 MATRIX Y This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 -0.3470 MATRIX Z This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 -0.2046 OBSERVED COVARIANCE MATRIX MORG_T1 MORG_T2 FARG_T1 FARG_T2 MORG_T1 0.6939 MORG_T2 0.5690 0.6657 FARG_T1 0.3122 0.2382 0.6375 FARG_T2 0.3082 0.2933 0.4612 0.6470 EXPECTED COVARIANCE MATRIX MORG_T1 MORG_T2 FARG_T1 FARG_T2 MORG_T1 0.5933 MORG_T2 0.4838 0.5933 FARG_T1 0.2787 0.2516 0.6209 FARG_T2 0.2516 0.2787 0.4292 0.6209 RESIDUAL MATRIX MORG_T1 MORG_T2 FARG_T1 FARG_T2 MORG_T1 0.1005 MORG_T2 0.0851 0.0724 FARG_T1 0.0335 -0.0134 0.0167 FARG_T2 0.0566 0.0146 0.0320 0.0262 Function value of this group: 3.6504 Where the fit function is Maximum Likelihood GROUP NUMBER: 3 G3: DZ boys twin pairs MATRIX A This is a computed FULL matrix of order 1 by 1 [=X*X'] 1 1 0.2674 MATRIX B This is a FULL matrix of order 4 by 2 1 2 1 -0.3098 0.0000 2 -0.3098 0.0000 3 0.0000 0.5158 4 0.0000 0.5158 MATRIX C This is a computed FULL matrix of order 1 by 1 [=Y*Y'] 1 1 0.1204 MATRIX E This is a computed FULL matrix of order 1 by 1 [=Z*Z'] 1 1 0.0419 MATRIX F This is a DIAGONAL matrix of order 4 by 4 1 2 3 4 1 -0.2601 2 0.0000 -0.2601 3 0.0000 0.0000 0.4172 4 0.0000 0.0000 0.0000 0.4172 MATRIX H This is a FULL matrix of order 1 by 1 1 1 0.5000 MATRIX I This is an IDENTITY matrix of order 2 by 2 MATRIX J This is a computed FULL matrix of order 4 by 4 [=F*F'] 1 2 3 4 1 0.0676 0.0000 0.0000 0.0000 2 0.0000 0.0676 0.0000 0.0000 3 0.0000 0.0000 0.1741 0.0000 4 0.0000 0.0000 0.0000 0.1741 MATRIX R This is a computed FULL matrix of order 4 by 4 [=B*B'] 1 2 3 4 1 0.0960 0.0960 0.0000 0.0000 2 0.0960 0.0960 0.0000 0.0000 3 0.0000 0.0000 0.2660 0.2660 4 0.0000 0.0000 0.2660 0.2660 MATRIX S This is a DIAGONAL matrix of order 2 by 2 1 2 1 0.6486 2 0.0000 0.6486 MATRIX X This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 -0.5171 MATRIX Y This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 -0.3470 MATRIX Z This is a LOWER TRIANGULAR matrix of order 1 by 1 1 1 -0.2046 OBSERVED COVARIANCE MATRIX MORG_T1 MORG_T2 FARG_T1 FARG_T2 MORG_T1 0.5651 MORG_T2 0.2911 0.4884 FARG_T1 0.2415 0.1374 0.6036 FARG_T2 0.1711 0.2852 0.3466 0.6042 EXPECTED COVARIANCE MATRIX MORG_T1 MORG_T2 FARG_T1 FARG_T2 MORG_T1 0.5933 MORG_T2 0.3501 0.5933 FARG_T1 0.2787 0.1648 0.6209 FARG_T2 0.1648 0.2787 0.3729 0.6209 RESIDUAL MATRIX MORG_T1 MORG_T2 FARG_T1 FARG_T2 MORG_T1 -0.0282 MORG_T2 -0.0590 -0.1049 FARG_T1 -0.0372 -0.0274 -0.0172 FARG_T2 0.0063 0.0064 -0.0263 -0.0167 Function value of this group: 5.3162 Where the fit function is Maximum Likelihood Your model has 8 estimated parameters and 20 Observed statistics Chi-squared fit of model >>>>>>> 8.967 Degrees of freedom >>>>>>>>>>>>> 12 Probability >>>>>>>>>>>>>>>>>>>> 0.706 Akaike's Information Criterion > -15.033 RMSEA >>>>>>>>>>>>>>>>>>>>>>>>>> 0.000 This problem used 0.7% of my workspace Task Time elapsed (DD:HH:MM:SS) Reading script & data 0: 0: 0: 0.65 Execution 0: 0: 0: 0.62 TOTAL 0: 0: 0: 1.27 Total number of warnings issued: 0 ______________________________________________________________________________