1 *** LOGISTIC MODEL ITEM ANALYSER *** *** PHASE 2 *** CONSCIENTIOUSNESS CALIBRATION FOR IRT TUTORIAL. >COMMENT >CALIB NQPT=40, CYC=100, NEW=30, CRIT=.001, PLOT=0; CALIBRATION PARAMETERS ====================== MAXIMUM NUMBER OF EM CYCLES: 100 MAXIMUM NUMBER OF NEWTON CYCLES: 30 CONVERGENCE CRITERION: 0.0010 SUBJECT DISTRIBUTION: NORMAL PRIOR PLOT EMPIRICAL VS. FITTED ICC'S: NO DATA HANDLING: RIGHT/WRONG/NOT PRESENTED DATA, IN CORE PRIOR DISTRIBUTION ON ASYMPTOTES: YES PRIOR DISTRIBUTION ON SLOPES: YES PRIOR DISTRIBUTION ON THRESHOLDS: NO SOURCE OF ITEM HYPERPARAMETERS: PROGRAM DEFAULTS 1 ****************************** CALIBRATION OF SUBTEST CON ****************************** METHOD OF SOLUTION ================== EM CYCLES (MAXIMUM OF 100) FOLLOWED BY NEWTON-RAPHSON STEPS (MAXIMUM OF 30) QUADRATURE POINTS AND PRIOR WEIGHTS: 1 2 3 4 5 POINT -0.4000E+01 -0.3795E+01 -0.3590E+01 -0.3385E+01 -0.3179E+01 WEIGHT 0.2745E-04 0.6107E-04 0.1302E-03 0.2663E-03 0.5221E-03 6 7 8 9 10 POINT -0.2974E+01 -0.2769E+01 -0.2564E+01 -0.2359E+01 -0.2154E+01 WEIGHT 0.9815E-03 0.1769E-02 0.3057E-02 0.5065E-02 0.8046E-02 11 12 13 14 15 POINT -0.1949E+01 -0.1744E+01 -0.1538E+01 -0.1333E+01 -0.1128E+01 WEIGHT 0.1226E-01 0.1790E-01 0.2506E-01 0.3364E-01 0.4331E-01 16 17 18 19 20 POINT -0.9231E+00 -0.7179E+00 -0.5128E+00 -0.3077E+00 -0.1026E+00 WEIGHT 0.5345E-01 0.6324E-01 0.7175E-01 0.7805E-01 0.8141E-01 21 22 23 24 25 POINT 0.1026E+00 0.3077E+00 0.5128E+00 0.7179E+00 0.9231E+00 WEIGHT 0.8141E-01 0.7805E-01 0.7175E-01 0.6324E-01 0.5345E-01 26 27 28 29 30 POINT 0.1128E+01 0.1333E+01 0.1538E+01 0.1744E+01 0.1949E+01 WEIGHT 0.4331E-01 0.3364E-01 0.2506E-01 0.1790E-01 0.1226E-01 31 32 33 34 35 POINT 0.2154E+01 0.2359E+01 0.2564E+01 0.2769E+01 0.2974E+01 WEIGHT 0.8046E-02 0.5065E-02 0.3057E-02 0.1769E-02 0.9815E-03 36 37 38 39 40 POINT 0.3179E+01 0.3385E+01 0.3590E+01 0.3795E+01 0.4000E+01 WEIGHT 0.5221E-03 0.2663E-03 0.1302E-03 0.6107E-04 0.2745E-04 PRIOR DISTRIBUTIONS ON ITEM PARAMETERS (THRESHOLDS, NORMAL; SLOPES, LOG-NORMAL; GUESSING, BETA) THRESHOLDS SLOPES ASYMPTOTES ITEM MU SIGMA MU SIGMA ALPHA BETA 0001 - - 0.000 0.500 5.00 17.00 0002 - - 0.000 0.500 5.00 17.00 0003 - - 0.000 0.500 5.00 17.00 0004 - - 0.000 0.500 5.00 17.00 0005 - - 0.000 0.500 5.00 17.00 0006 - - 0.000 0.500 5.00 17.00 0007 - - 0.000 0.500 5.00 17.00 0008 - - 0.000 0.500 5.00 17.00 0009 - - 0.000 0.500 5.00 17.00 0010 - - 0.000 0.500 5.00 17.00 DATA FOR FIRST TWO OBSERVATIONS (TT=RIGHT, TF=WRONG, FF=NOT PRESENTED) OBSERVATION 1 WEIGHT = 1.000 TF TF TF TF TT TT TF TT TF TF OBSERVATION 2 WEIGHT = 1.000 TT TT TF TF TF TF TF TT TT TT [EM STEP] -2 LOG LIKELIHOOD = 17871.2167 CYCLE 1: LARGEST CHANGE = 0.46163 -2 LOG LIKELIHOOD = 17769.9217 CYCLE 2: LARGEST CHANGE = 0.21699 -2 LOG LIKELIHOOD = 17743.5838 CYCLE 3: LARGEST CHANGE = 0.10216 -2 LOG LIKELIHOOD = 17735.5559 CYCLE 4: LARGEST CHANGE = 0.09448 -2 LOG LIKELIHOOD = 17732.1451 CYCLE 5: LARGEST CHANGE = 0.01467 -2 LOG LIKELIHOOD = 17730.5401 CYCLE 6: LARGEST CHANGE = 0.01868 -2 LOG LIKELIHOOD = 17730.0971 CYCLE 7: LARGEST CHANGE = 0.00759 -2 LOG LIKELIHOOD = 17729.8602 CYCLE 8: LARGEST CHANGE = 0.00494 -2 LOG LIKELIHOOD = 17729.7884 CYCLE 9: LARGEST CHANGE = 0.00398 -2 LOG LIKELIHOOD = 17729.7535 CYCLE 10: LARGEST CHANGE = 0.00381 -2 LOG LIKELIHOOD = 17729.7287 CYCLE 11: LARGEST CHANGE = 0.00165 -2 LOG LIKELIHOOD = 17729.7192 CYCLE 12: LARGEST CHANGE = 0.00374 -2 LOG LIKELIHOOD = 17729.7184 CYCLE 13: LARGEST CHANGE = 0.00223 -2 LOG LIKELIHOOD = 17729.7103 CYCLE 14: LARGEST CHANGE = 0.00007 [FULL NEWTON STEP] -2 LOG LIKELIHOOD = 17729.3014 CYCLE 15: LARGEST CHANGE = 0.00161 -2 LOG LIKELIHOOD = 17729.4180 CYCLE 16: LARGEST CHANGE = 0.00023 1 SUBTEST CON : INDICES OF ITEM FIT STANDARDIZED POSTERIOR RESIDUALS AT QUADRATURE POINTS WITH POSTERIOR WEIGHTS ITEM STANDARDIZED RESIDUALS ----------------------------------------------------------------------------- 0001 | -4.593 -4.572 -4.543 -4.505 -4.454 -4.387 -4.298 -4.179 -4.020 -3.809 | -3.529 -3.165 -2.703 -2.141 -1.503 -0.846 -0.248 0.217 0.518 0.684 | 0.767 0.789 0.692 0.369 -0.210 -0.925 -1.575 -2.023 -2.236 -2.256 | -2.145 -1.962 -1.747 -1.527 -1.319 -1.129 -0.960 -0.814 -0.687 -0.579 | 0002 | -4.603 -4.567 -4.519 -4.457 -4.376 -4.274 -4.144 -3.980 -3.775 -3.520 | -3.201 -2.799 -2.292 -1.657 -0.898 -0.072 0.682 1.145 1.102 0.521 | -0.288 -0.849 -0.914 -0.593 -0.148 0.223 0.448 0.542 0.552 0.516 | 0.459*************************************************************** | 0003 | -2.826 -2.811 -2.790 -2.760 -2.718 -2.659 -2.575 -2.456 -2.291 -2.063 | -1.756 -1.358 -0.871 -0.328 0.195 0.583 0.717 0.552 0.180 -0.193 | -0.355 -0.246 -0.006 0.155 0.132 -0.034 -0.239 -0.409 -0.518 -0.568 | -0.574 -0.553 -0.515 -0.469 -0.421 -0.374 -0.329 -0.288 -0.251 -0.219 | 0004 | -2.684 -2.652 -2.608 -2.549 -2.470 -2.364 -2.223 -2.037 -1.792 -1.478 | -1.085 -0.615 -0.095 0.412 0.790 0.901 0.654 0.129 -0.402 -0.639 | -0.496 -0.145 0.165 0.296 0.267 0.168 0.073 0.014 -0.014 -0.021 | -0.020 -0.016 -0.013 -0.011 -0.009 -0.008 -0.008 -0.007 -0.007 -0.006 | 0005 | -5.015 -4.995 -4.968 -4.932 -4.884 -4.821 -4.735 -4.618 -4.460 -4.245 | -3.950 -3.548 -3.007 -2.301 -1.432 -0.455 0.485 1.165 1.359 0.985 | 0.228 -0.519 -0.914 -0.868 -0.528 -0.100 0.274 0.542 0.703 0.777 | 0.788 0.757 0.702 0.635 0.564 0.494 0.428 0.368 0.315 0.269 | 0006 | -0.367 -0.373 -0.380 -0.390 -0.402 -0.417 -0.436 -0.460 -0.491 -0.532 | -0.586 -0.659 -0.754 -0.870 -0.979 -1.006 -0.818 -0.302 0.468 1.131 | 1.220 0.605 -0.287 -0.883 -0.973 -0.711 -0.335 0.000 0.236 0.373 | 0.433 0.443 0.423 0.387 0.346 0.304 0.264 0.227 0.195 0.167 | 0007 | -2.863 -2.864 -2.864 -2.864 -2.863 -2.859 -2.852 -2.838 -2.812 -2.766 | -2.687 -2.555 -2.340 -2.007 -1.525 -0.900 -0.210 0.374 0.656 0.569 | 0.289 0.090 0.062 0.068 -0.033 -0.246 -0.483 -0.665 -0.762 -0.784 | -0.752 -0.690 -0.614 -0.535 -0.461 -0.392 -0.332 -0.280 -0.235 -0.196 | 0008 | -3.070 -3.072 -3.074 -3.073 -3.066 -3.049 -3.017 -2.958 -2.859 -2.702 | -2.462 -2.116 -1.649 -1.072 -0.437 0.151 0.566 0.741 0.735 0.667 | 0.561 0.334 -0.030 -0.423 -0.735 -0.940 -1.063 -1.125 -1.142 -1.121 | -1.072 -1.003 -0.924 -0.840 -0.756 -0.675 -0.600 -0.531 -0.469 -0.413 | 0009 | -4.243 -4.228 -4.208 -4.182 -4.147 -4.101 -4.041 -3.963 -3.860 -3.726 | -3.551 -3.321 -3.020 -2.623 -2.102 -1.436 -0.646 0.154 0.740 0.863 | 0.470 -0.150 -0.567 -0.576 -0.283 0.094 0.403 0.587 0.655 0.641 | 0.580 0.499******************************************************** | 0010 | -4.404 -4.376 -4.339 -4.290 -4.225 -4.141 -4.029 -3.882 -3.690 -3.439 | -3.113 -2.697 -2.179 -1.560 -0.860 -0.128 0.550 1.039 1.168 0.833 | 0.160 -0.509 -0.872 -0.860 -0.589 -0.225 0.110 0.358 0.509 0.577 | 0.587 0.560 0.512 0.456 0.398 0.343 0.294********************* ----------------------------------------------------------------------------- POINT -4.000 -3.795 -3.590 -3.385 -3.179 -2.974 -2.769 -2.564 -2.359 -2.154 WEIGHT 0.000 0.000 0.000 0.000 0.001 0.001 0.002 0.003 0.005 0.009 -1.949 -1.744 -1.538 -1.333 -1.128 -0.923 -0.718 -0.513 -0.308 -0.103 0.013 0.018 0.025 0.033 0.042 0.051 0.060 0.069 0.077 0.083 0.103 0.308 0.513 0.718 0.923 1.128 1.333 1.538 1.744 1.949 0.084 0.081 0.074 0.064 0.054 0.043 0.033 0.025 0.017 0.012 2.154 2.359 2.564 2.769 2.974 3.179 3.385 3.590 3.795 4.000 0.008 0.005 0.003 0.002 0.001 0.000 0.000 0.000 0.000 0.000 * - NOT COMPUTED: S.D. OF POSTERIOR RESIDUAL IS LESS THAN 0.001. 1 SUBTEST CON : ITEM PARAMETERS AFTER CYCLE 16 ITEM INTERCEPT SLOPE THRESHOLD DISPERSN ASYMPTOTE RT MEAN SQUARE STD S.E. S.E. S.E. S.E. S.E. POSTERIOR RESIDUAL ------------------------------------------------------------------------------ 0001 | -0.121 | 1.012 | 0.120 | 0.988 | 0.071 | 1.346 | 0.083* | 0.100* | 0.076* | 0.098* | 0.031* | | | | | | | 0002 | 0.605 | 1.307 | -0.463 | 0.765 | 0.090 | 1.128 | 0.081* | 0.133* | 0.080* | 0.078* | 0.041* | | | | | | | 0003 | 0.240 | 0.859 | -0.279 | 1.164 | 0.151 | 0.570 | 0.104* | 0.101* | 0.143* | 0.137* | 0.061* | | | | | | | 0004 | 0.146 | 0.891 | -0.164 | 1.123 | 0.182 | 0.526 | 0.121* | 0.119* | 0.152* | 0.150* | 0.063* | | | | | | | 0005 | -0.397 | 0.993 | 0.400 | 1.007 | 0.076 | 1.371 | 0.103* | 0.115* | 0.077* | 0.117* | 0.031* | | | | | | | 0006 | -0.301 | 0.929 | 0.324 | 1.077 | 0.128 | 0.782 | 0.123* | 0.125* | 0.102* | 0.145* | 0.042* | | | | | | | 0007 | -0.471 | 1.057 | 0.446 | 0.946 | 0.073 | 0.959 | 0.106* | 0.122* | 0.071* | 0.109* | 0.028* | | | | | | | 0008 | 0.258 | 0.766 | -0.336 | 1.305 | 0.134 | 0.909 | 0.094* | 0.084* | 0.145* | 0.143* | 0.058* | | | | | | | 0009 | -0.320 | 1.562 | 0.205 | 0.640 | 0.046 | 1.295 | 0.094* | 0.172* | 0.050* | 0.070* | 0.019* | | | | | | | 0010 | 0.163 | 1.011 | -0.161 | 0.989 | 0.100 | 1.099 | 0.086* | 0.107* | 0.095* | 0.105* | 0.043* | ------------------------------------------------------------------------------ * STANDARD ERROR LARGEST CHANGE = 0.000 PARAMETER MEAN STN DEV ----------------------------- ASYMPTOTE 0.105 0.042 SLOPE 1.039 0.233 LOG(SLOPE) 0.018 0.206 THRESHOLD 0.009 0.329 QUADRATURE POINTS AND POSTERIOR WEIGHTS: 1 2 3 4 5 POINT -0.4000E+01 -0.3795E+01 -0.3590E+01 -0.3385E+01 -0.3179E+01 WEIGHT 0.3074E-04 0.6829E-04 0.1454E-03 0.2966E-03 0.5796E-03 6 7 8 9 10 POINT -0.2974E+01 -0.2769E+01 -0.2564E+01 -0.2359E+01 -0.2154E+01 WEIGHT 0.1085E-02 0.1944E-02 0.3333E-02 0.5467E-02 0.8572E-02 11 12 13 14 15 POINT -0.1949E+01 -0.1744E+01 -0.1538E+01 -0.1333E+01 -0.1128E+01 WEIGHT 0.1284E-01 0.1839E-01 0.2519E-01 0.3308E-01 0.4177E-01 16 17 18 19 20 POINT -0.9231E+00 -0.7179E+00 -0.5128E+00 -0.3077E+00 -0.1026E+00 WEIGHT 0.5097E-01 0.6034E-01 0.6941E-01 0.7731E-01 0.8269E-01 21 22 23 24 25 POINT 0.1026E+00 0.3077E+00 0.5128E+00 0.7179E+00 0.9231E+00 WEIGHT 0.8412E-01 0.8095E-01 0.7385E-01 0.6429E-01 0.5370E-01 26 27 28 29 30 POINT 0.1128E+01 0.1333E+01 0.1538E+01 0.1744E+01 0.1949E+01 WEIGHT 0.4312E-01 0.3325E-01 0.2461E-01 0.1748E-01 0.1191E-01 31 32 33 34 35 POINT 0.2154E+01 0.2359E+01 0.2564E+01 0.2769E+01 0.2974E+01 WEIGHT 0.7784E-02 0.4883E-02 0.2939E-02 0.1697E-02 0.9400E-03 36 37 38 39 40 POINT 0.3179E+01 0.3385E+01 0.3590E+01 0.3795E+01 0.4000E+01 WEIGHT 0.4994E-03 0.2545E-03 0.1244E-03 0.5829E-04 0.2619E-04 183848 BYTES OF NUMERIAL WORKSPACE USED OUT OF 3600000 IN PHASE-2 3012 BYTES OF CHARACTER WORKSPACE USED OUT OF 80000 IN PHASE-2