TABLE 3.1 EDU2.xlsx ZOU024WS.TXT Dec 11 12:13 2013 INPUT: 20 PERSON 10 ITEM REPORTED: 20 PERSON 10 ITEM 2 CATS MINISTEP 3.80.1 -------------------------------------------------------------------------------- SUMMARY OF 18 MEASURED (NON-EXTREME) PERSON ------------------------------------------------------------------------------- | TOTAL MODEL INFIT OUTFIT | | SCORE COUNT MEASURE ERROR MNSQ ZSTD MNSQ ZSTD | |-----------------------------------------------------------------------------| | MEAN 5.7 10.0 .58 .94 .90 -.2 1.44 .3 | | S.D. 2.1 .0 1.72 .08 .48 1.1 2.35 1.1 | | MAX. 9.0 10.0 3.56 1.19 1.87 1.5 9.90 3.4 | | MIN. 2.0 10.0 -2.39 .87 .31 -1.7 .17 -.9 | |-----------------------------------------------------------------------------| | REAL RMSE 1.02 TRUE SD 1.38 SEPARATION 1.36 PERSON RELIABILITY .65 | |MODEL RMSE .94 TRUE SD 1.44 SEPARATION 1.54 PERSON RELIABILITY .70 | | S.E. OF PERSON MEAN = .42 | ------------------------------------------------------------------------------- MAXIMUM EXTREME SCORE: 2 PERSON 10.0% SUMMARY OF 20 MEASURED (EXTREME AND NON-EXTREME) PERSON ------------------------------------------------------------------------------- | TOTAL MODEL INFIT OUTFIT | | SCORE COUNT MEASURE ERROR MNSQ ZSTD MNSQ ZSTD | |-----------------------------------------------------------------------------| | MEAN 6.2 10.0 1.03 1.03 | | S.D. 2.4 .0 2.12 .30 | | MAX. 10.0 10.0 5.07 1.90 | | MIN. 2.0 10.0 -2.39 .87 | |-----------------------------------------------------------------------------| | REAL RMSE 1.14 TRUE SD 1.78 SEPARATION 1.56 PERSON RELIABILITY .71 | |MODEL RMSE 1.07 TRUE SD 1.82 SEPARATION 1.70 PERSON RELIABILITY .74 | | S.E. OF PERSON MEAN = .49 | ------------------------------------------------------------------------------- PERSON RAW SCORE-TO-MEASURE CORRELATION = .99 CRONBACH ALPHA (KR-20) PERSON RAW SCORE "TEST" RELIABILITY = .77 SUMMARY OF 10 MEASURED (NON-EXTREME) ITEM ------------------------------------------------------------------------------- | TOTAL MODEL INFIT OUTFIT | | SCORE COUNT MEASURE ERROR MNSQ ZSTD MNSQ ZSTD | |-----------------------------------------------------------------------------| | MEAN 12.3 20.0 .00 .72 .90 -.3 1.63 .2 | | S.D. 5.0 .0 2.11 .14 .28 1.1 2.58 1.3 | | MAX. 19.0 20.0 3.53 1.08 1.39 1.2 9.06 3.2 | | MIN. 4.0 20.0 -3.35 .60 .42 -2.4 .20 -1.5 | |-----------------------------------------------------------------------------| | REAL RMSE .76 TRUE SD 1.97 SEPARATION 2.60 ITEM RELIABILITY .87 | |MODEL RMSE .74 TRUE SD 1.98 SEPARATION 2.68 ITEM RELIABILITY .88 | | S.E. OF ITEM MEAN = .70 | ------------------------------------------------------------------------------- ITEM RAW SCORE-TO-MEASURE CORRELATION = -.99 180 DATA POINTS. LOG-LIKELIHOOD CHI-SQUARE: 127.34 with 153 d.f. p=.9357 Global Root-Mean-Square Residual (excluding extreme scores): .3215 Capped Binomial Deviance = .1383 for 200.0 dichotomous observations UMEAN=.0000 USCALE=1.0000