********* KEY ********* 2223244122213114422224243 ************************ Response Vectors for the First Five Examinees ************************ 2223444432233014440021200 2322141002241004000043104 2221144222123411144121224 4012120434400014000022003 2323144122223114243121342 ************************** Individual Item Statistics ************************** ITEM 1 0 1 2* 3 4 5 PBIS= .5157 UPP N= 6 0 0 6 0 0 0 BIS= .7157 MID N= 6 0 0 5 1 0 0 DIFF= .7647 LOW N= 5 0 1 2 0 2 0 IREL= .2187 TOT N= 17 0 1 13 1 2 0 DIS= -.2000 ITEM 2 0 1 2* 3 4 5 PBIS= .4985 UPP N= 6 0 0 3 3 0 0 BIS= .6623 MID N= 6 0 1 2 2 1 0 DIFF= .2941 LOW N= 5 2 1 0 2 0 0 IREL= .2271 TOT N= 17 2 2 5 7 1 0 DIS= -.2000 ITEM 3 0 1 2* 3 4 5 PBIS= .6175 UPP N= 6 0 0 6 0 0 0 BIS= .8204 MID N= 6 0 0 5 0 1 0 DIFF= .7059 LOW N= 5 0 1 1 0 3 0 IREL= .2814 TOT N= 17 0 1 12 0 4 0 DIS= -.2000 ITEM 4 0 1 2 3* 4 5 PBIS= .8528 UPP N= 6 0 0 0 6 0 0 BIS= 1.0803 MID N= 6 0 1 4 1 0 0 DIFF= .4118 LOW N= 5 0 0 5 0 0 0 IREL= .4197 TOT N= 17 0 1 9 7 0 0 DIS= .0000 ITEM 5 0 1 2* 3 4 5 PBIS= -.0246 UPP N= 6 0 3 2 0 1 0 BIS= -.0327 MID N= 6 0 4 2 0 0 0 DIFF= .2941 LOW N= 5 0 4 1 0 0 0 IREL= -.0112 TOT N= 17 0 11 5 0 1 0 DIS= -.3000 ITEM 6 0 1 2 3 4* 5 PBIS= -.0450 UPP N= 6 0 0 3 0 3 0 BIS= -.0579 MID N= 6 0 0 1 0 5 0 DIFF= .6471 LOW N= 5 0 0 2 0 3 0 IREL= -.0215 TOT N= 17 0 0 6 0 11 0 DIS= .0000 ITEM 7 0 1 2 3 4* 5 PBIS= .6524 UPP N= 6 0 0 0 0 6 0 BIS= .8668 MID N= 6 0 1 1 0 4 0 DIFF= .7059 LOW N= 5 1 2 0 0 2 0 IREL= .2973 TOT N= 17 1 3 1 0 12 0 DIS= -.4000 ITEM 8 0 1* 2 3 4 5 PBIS= -.0190 UPP N= 6 0 2 1 0 3 0 BIS= -.0241 MID N= 6 0 2 2 1 1 0 DIFF= .4118 LOW N= 5 1 3 0 0 1 0 IREL= -.0093 TOT N= 17 1 7 3 1 5 0 DIS= -.2667 ITEM 9 0 1 2* 3 4 5 PBIS= .2544 UPP N= 6 0 0 2 2 2 0 BIS= .3380 MID N= 6 0 1 3 0 2 0 DIFF= .2941 LOW N= 5 1 0 0 1 3 0 IREL= .1159 TOT N= 17 1 1 5 3 7 0 DIS= .0000 ITEM 10 0 1 2* 3 4 5 PBIS= .2697 UPP N= 6 0 0 4 1 1 0 BIS= .3385 MID N= 6 0 1 2 3 0 0 DIFF= .4706 LOW N= 5 0 0 2 1 2 0 IREL= .1346 TOT N= 17 0 1 8 5 3 0 DIS= .0000 ITEM 11 0 1 2* 3 4 5 PBIS= .3742 UPP N= 6 0 0 5 0 1 0 BIS= .4740 MID N= 6 0 3 2 0 1 0 DIFF= .5882 LOW N= 5 0 1 3 0 1 0 IREL= .1841 TOT N= 17 0 4 10 0 3 0 DIS= -.2000 ITEM 12 0 1* 2 3 4 5 PBIS= -.1422 UPP N= 6 0 0 3 2 1 0 BIS= -.2331 MID N= 6 0 2 2 2 0 0 DIFF= .1176 LOW N= 5 1 0 1 1 2 0 IREL= -.0458 TOT N= 17 1 2 6 5 3 0 DIS= .0000 ITEM 13 0 1 2 3* 4 5 PBIS= .8205 UPP N= 6 0 0 0 6 0 0 BIS= 1.0394 MID N= 6 0 4 0 1 1 0 DIFF= .4118 LOW N= 5 1 3 0 0 1 0 IREL= .4038 TOT N= 17 1 7 0 7 2 0 DIS= -.6000 ITEM 14 0 1* 2 3 4 5 PBIS= .4289 UPP N= 6 1 4 0 1 0 0 BIS= .5383 MID N= 6 0 3 0 1 2 0 DIFF= .4706 LOW N= 5 2 1 1 1 0 0 IREL= .2141 TOT N= 17 3 8 1 3 2 0 DIS= .4667 ITEM 15 0 1* 2 3 4 5 PBIS= .2875 UPP N= 6 0 5 0 1 0 0 BIS= .3702 MID N= 6 0 4 0 0 2 0 DIFF= .6471 LOW N= 5 2 2 0 0 1 0 IREL= .1374 TOT N= 17 2 11 0 1 3 0 DIS= .4333 ITEM 16 0 1 2 3 4* 5 PBIS= .0435 UPP N= 6 0 0 0 0 6 0 BIS= .0713 MID N= 6 0 2 0 0 4 0 DIFF= .8824 LOW N= 5 0 0 0 0 5 0 IREL= .0140 TOT N= 17 0 2 0 0 15 0 DIS= .0000 ITEM 17 0 1 2 3 4* 5 PBIS= .3825 UPP N= 6 0 0 2 2 2 0 BIS= .5633 MID N= 6 0 4 1 0 1 0 DIFF= .1765 LOW N= 5 3 2 0 0 0 0 IREL= .1458 TOT N= 17 3 6 3 2 3 0 DIS= -.4000 ITEM 18 0 1 2* 3 4 5 PBIS= .0779 UPP N= 6 0 1 2 0 3 0 BIS= .0986 MID N= 6 0 1 3 0 2 0 DIFF= .4118 LOW N= 5 2 0 2 0 1 0 IREL= .0383 TOT N= 17 2 2 7 0 6 0 DIS= .1667 ITEM 19 0 1 2* 3 4 5 PBIS= .4985 UPP N= 6 1 0 3 1 1 0 BIS= .6623 MID N= 6 0 0 2 2 2 0 DIFF= .2941 LOW N= 5 3 0 0 2 0 0 IREL= .2271 TOT N= 17 4 0 5 5 3 0 DIS= .0000 ITEM 20 0 1 2* 3 4 5 PBIS= -.2844 UPP N= 6 1 4 0 0 1 0 BIS= -.4189 MID N= 6 1 2 2 0 1 0 DIFF= .1765 LOW N= 5 3 1 1 0 0 0 IREL= -.1084 TOT N= 17 5 7 3 0 2 0 DIS= .4667 ITEM 21 0 1 2* 3 4 5 PBIS= .3685 UPP N= 6 0 0 4 0 2 0 BIS= .4667 MID N= 6 0 1 2 1 2 0 DIFF= .4118 LOW N= 5 0 0 1 0 4 0 IREL= .1813 TOT N= 17 0 1 7 1 8 0 DIS= .0000 ITEM 22 0 1 2 3 4* 5 PBIS= .2711 UPP N= 6 0 2 1 0 3 0 BIS= .3762 MID N= 6 1 2 0 3 0 0 DIFF= .2353 LOW N= 5 0 2 1 1 1 0 IREL= .1150 TOT N= 17 1 6 2 4 4 0 DIS= -.0667 ITEM 23 0 1 2* 3 4 5 PBIS= .5299 UPP N= 6 0 1 4 1 0 0 BIS= .6713 MID N= 6 1 0 3 2 0 0 DIFF= .4118 LOW N= 5 1 1 0 0 3 0 IREL= .2608 TOT N= 17 2 2 7 3 3 0 DIS= -.0333 ITEM 24 0 1 2 3 4* 5 PBIS= .5683 UPP N= 6 1 0 0 1 4 0 BIS= .7550 MID N= 6 0 0 3 2 1 0 DIFF= .2941 LOW N= 5 2 1 2 0 0 0 IREL= .2589 TOT N= 17 3 1 5 3 5 0 DIS= -.2000 ITEM 25 0 1 2 3* 4 5 PBIS= .0456 UPP N= 6 1 0 2 3 0 0 BIS= .0577 MID N= 6 1 1 1 1 2 0 DIFF= .4118 LOW N= 5 0 0 0 3 2 0 IREL= .0224 TOT N= 17 2 1 3 7 4 0 DIS= .0000 ************ ITEM SUMMARY ************ ITEM P-Value Dis Biserial Pt. Biserial Reliability 1 .7647 -.2000 .7157 .5157 .2187 2 .2941 -.2000 .6623 .4985 .2271 3 .7059 -.2000 .8204 .6175 .2814 4 .4118 .0000 1.0803 .8528 .4197 5 .2941 -.3000 -.0327 -.0246 -.0112 6 .6471 .0000 -.0579 -.0450 -.0215 7 .7059 -.4000 .8668 .6524 .2973 8 .4118 -.2667 -.0241 -.0190 -.0093 9 .2941 .0000 .3380 .2544 .1159 10 .4706 .0000 .3385 .2697 .1346 11 .5882 -.2000 .4740 .3742 .1841 12 .1176 .0000 -.2331 -.1422 -.0458 13 .4118 -.6000 1.0394 .8205 .4038 14 .4706 .4667 .5383 .4289 .2141 15 .6471 .4333 .3702 .2875 .1374 16 .8824 .0000 .0713 .0435 .0140 17 .1765 -.4000 .5633 .3825 .1458 18 .4118 .1667 .0986 .0779 .0383 19 .2941 .0000 .6623 .4985 .2271 20 .1765 .4667 -.4189 -.2844 -.1084 21 .4118 .0000 .4667 .3685 .1813 22 .2353 -.0667 .3762 .2711 .1150 23 .4118 -.0333 .6713 .5299 .2608 24 .2941 -.2000 .7550 .5683 .2589 25 .4118 .0000 .0577 .0456 .0224 0 - .2 .2 - .4 .4 - .6 .6 - .8 .8 - 1.0 DIFF 3 6 10 5 1 PBIS 8 7 6 2 2 BIS 8 4 4 5 4 *********************** Inter-item Correlations *********************** 1 2 3 4 5 6 7 8 9 10 ITEM 1 1.00 .36 .55 .46 .36 -.12 -.05 -.38 .05 .25 ITEM 2 .36 1.00 .42 .51 -.13 -.06 .42 -.28 -.13 .43 ITEM 3 .55 .42 1.00 .54 .13 .06 .15 -.25 .42 .35 ITEM 4 .46 .51 .54 1.00 -.02 -.13 .54 -.21 -.02 .41 ITEM 5 .36 -.13 .13 -.02 1.00 -.60 -.43 -.02 -.13 -.35 ITEM 6 -.12 -.06 .06 -.13 -.60 1.00 .33 -.13 .21 .45 ITEM 7 -.05 .42 .15 .54 -.43 .33 1.00 .02 .13 .35 ITEM 8 -.38 -.28 -.25 -.21 -.02 -.13 .02 1.00 .25 -.31 ITEM 9 .05 -.13 .42 -.02 -.13 .21 .13 .25 1.00 .17 ITEM 10 .25 .43 .35 .41 -.35 .45 .35 -.31 .17 1.00 ITEM 11 -.18 .02 .25 .46 -.51 .38 .51 .21 .02 .31 ITEM 12 .20 -.24 .24 -.31 .57 -.11 -.57 .07 .16 -.34 ITEM 13 .46 .51 .54 .76 -.02 -.13 .54 -.21 .25 .41 ITEM 14 -.03 -.35 .09 .17 -.09 -.04 .35 .41 .43 -.18 ITEM 15 .17 .48 .06 .37 -.06 -.03 .33 -.38 -.33 -.04 ITEM 16 -.20 -.16 -.24 .31 -.16 .11 .16 -.07 -.57 -.02 ITEM 17 .26 .38 -.04 .24 -.30 .02 .30 -.07 -.30 -.13 ITEM 18 .18 -.02 -.25 .03 .25 -.38 .02 .27 -.28 -.55 ITEM 19 .36 .43 .42 .51 .15 -.06 .13 -.28 -.13 .17 ITEM 20 .26 -.30 -.04 -.39 .72 -.30 -.72 .24 .04 -.44 ITEM 21 -.10 .25 .28 .27 -.54 .12 .28 .03 .51 .17 ITEM 22 .31 -.05 .05 .38 .55 -.46 .05 -.18 -.05 .03 ITEM 23 .46 .51 .28 .27 -.02 -.13 .28 -.21 .25 .17 ITEM 24 .05 .15 .42 .51 .15 -.33 .42 .25 .15 -.09 ITEM 25 -.38 -.28 -.51 .03 -.28 -.13 .28 .03 -.28 -.31 *********************** Inter-item Correlations *********************** 11 12 13 14 15 16 17 18 19 20 ITEM 1 -.18 .20 .46 -.03 .17 -.20 .26 .18 .36 .26 ITEM 2 .02 -.24 .51 -.35 .48 -.16 .38 -.02 .43 -.30 ITEM 3 .25 .24 .54 .09 .06 -.24 -.04 -.25 .42 -.04 ITEM 4 .46 -.31 .76 .17 .37 .31 .24 .03 .51 -.39 ITEM 5 -.51 .57 -.02 -.09 -.06 -.16 -.30 .25 .15 .72 ITEM 6 .38 -.11 -.13 -.04 -.03 .11 .02 -.38 -.06 -.30 ITEM 7 .51 -.57 .54 .35 .33 .16 .30 .02 .13 -.72 ITEM 8 .21 .07 -.21 .41 -.38 -.07 -.07 .27 -.28 .24 ITEM 9 .02 .16 .25 .43 -.33 -.57 -.30 -.28 -.13 .04 ITEM 10 .31 -.34 .41 -.18 -.04 -.02 -.13 -.55 .17 -.44 ITEM 11 1.00 -.44 .21 .31 -.12 .44 .07 -.03 .02 -.55 ITEM 12 -.44 1.00 -.31 .02 -.11 -.43 -.17 .07 .16 .79 ITEM 13 .21 -.31 1.00 .17 .37 -.07 .24 -.21 .25 -.39 ITEM 14 .31 .02 .17 1.00 -.29 -.02 .18 .17 -.09 -.13 ITEM 15 -.12 -.11 .37 -.29 1.00 .11 .34 .12 .21 -.30 ITEM 16 .44 -.43 -.07 -.02 .11 1.00 .17 -.07 .24 -.31 ITEM 17 .07 -.17 .24 .18 .34 .17 1.00 .24 .04 -.21 ITEM 18 -.03 .07 -.21 .17 .12 -.07 .24 1.00 -.02 .24 ITEM 19 .02 .16 .25 -.09 .21 .24 .04 -.02 1.00 .04 ITEM 20 -.55 .79 -.39 -.13 -.30 -.31 -.21 .24 .04 1.00 ITEM 21 .21 -.31 .51 .17 .12 -.07 .24 -.46 -.02 -.39 ITEM 22 -.10 -.20 .38 .03 -.17 .20 -.26 .10 .25 .11 ITEM 23 -.27 .07 .51 .17 .12 -.44 .55 .03 .25 -.07 ITEM 24 .28 -.24 .51 .43 .21 .24 .04 -.02 .15 -.30 ITEM 25 .21 -.31 .03 .41 .12 .31 .24 .27 -.02 -.39 *********************** Inter-item Correlations *********************** 21 22 23 24 25 ITEM 1 -.10 .31 .46 .05 -.38 ITEM 2 .25 -.05 .51 .15 -.28 ITEM 3 .28 .05 .28 .42 -.51 ITEM 4 .27 .38 .27 .51 .03 ITEM 5 -.54 .55 -.02 .15 -.28 ITEM 6 .12 -.46 -.13 -.33 -.13 ITEM 7 .28 .05 .28 .42 .28 ITEM 8 .03 -.18 -.21 .25 .03 ITEM 9 .51 -.05 .25 .15 -.28 ITEM 10 .17 .03 .17 -.09 -.31 ITEM 11 .21 -.10 -.27 .28 .21 ITEM 12 -.31 -.20 .07 -.24 -.31 ITEM 13 .51 .38 .51 .51 .03 ITEM 14 .17 .03 .17 .43 .41 ITEM 15 .12 -.17 .12 .21 .12 ITEM 16 -.07 .20 -.44 .24 .31 ITEM 17 .24 -.26 .55 .04 .24 ITEM 18 -.46 .10 .03 -.02 .27 ITEM 19 -.02 .25 .25 .15 -.02 ITEM 20 -.39 .11 -.07 -.30 -.39 ITEM 21 1.00 -.18 .27 .25 .03 ITEM 22 -.18 1.00 .10 .25 .10 ITEM 23 .27 .10 1.00 -.02 .03 ITEM 24 .25 .25 -.02 1.00 -.02 ITEM 25 .03 .10 .03 -.02 1.00 *************** TEST TOTALS *************** OVERALL TEST SCORE DISTRIBUTION CUMULATIVE SCORE FREQUENCY FREQUENCY 0 0 0 1 0 0 2 0 0 3 0 0 4 1 1 5 0 1 6 1 2 7 1 3 8 2 5 9 1 6 10 3 9 11 1 10 12 1 11 13 0 11 14 3 14 15 1 15 16 1 16 17 0 16 18 1 17 19 0 17 20 0 17 21 0 17 22 0 17 23 0 17 24 0 17 25 0 17 Test Statistics MEAN= 10.941 STANDARD DEVIATION = 3.702 SKEWNESS = .067 KURTOSIS = -.808 KR20 = .646