ITEM ANALYSIS Default.myproject.EXAM2 February 11, 2010 13:24:17 ================================================================================ Item-Total Correlation Item Option (Score) Difficulty S.D. Pt. Bis. Bis. --------- --------------- ---------- ---------- ---------- ---------- item1 Overall 2.1540 1.0219 0.5342 0.5342 0.0(0.0) 0.1120 0.3157 -0.4586 -0.7594 1.0(1.0) 0.1200 0.3253 -0.2505 -0.4070 2.0(2.0) 0.2700 0.4444 -0.1225 -0.1644 3.0(3.0) 0.4980 0.5005 0.4729 0.5927 item2 Overall 1.4280 1.1780 0.6168 0.6168 0.0(0.0) 0.3160 0.4654 -0.5859 -0.7658 1.0(1.0) 0.1940 0.3958 -0.1835 -0.2641 2.0(2.0) 0.2360 0.4250 0.2387 0.3290 3.0(3.0) 0.2540 0.4357 0.4499 0.6111 item3 Overall 1.2880 0.8687 0.5173 0.5173 0.0(0.0) 0.1720 0.3778 -0.4050 -0.5995 1.0(1.0) 0.4700 0.4996 -0.2348 -0.2946 2.0(2.0) 0.2560 0.4369 0.2830 0.3839 3.0(3.0) 0.1020 0.3030 0.3268 0.5555 item4 Overall 1.2260 1.0398 0.5819 0.5819 0.0(0.0) 0.3260 0.4692 -0.5741 -0.7467 1.0(1.0) 0.2480 0.4323 -0.0626 -0.0854 2.0(2.0) 0.3000 0.4587 0.2703 0.3563 3.0(3.0) 0.1260 0.3322 0.3729 0.5978 item5 Overall 2.2020 1.0331 0.5814 0.5814 0.0(0.0) 0.1020 0.3030 -0.4830 -0.8209 1.0(1.0) 0.1460 0.3535 -0.3451 -0.5322 2.0(2.0) 0.2000 0.4004 -0.0439 -0.0627 3.0(3.0) 0.5520 0.4978 0.4919 0.6184 item6 Overall 1.1320 1.0318 0.5467 0.5467 0.0(0.0) 0.3460 0.4762 -0.5397 -0.6961 1.0(1.0) 0.3040 0.4604 -0.0570 -0.0750 2.0(2.0) 0.2220 0.4160 0.2876 0.4015 3.0(3.0) 0.1280 0.3344 0.3428 0.5472 item7 Overall 1.5720 1.1346 0.6241 0.6241 0.0(0.0) 0.2380 0.4263 -0.5424 -0.7464 1.0(1.0) 0.2340 0.4238 -0.2308 -0.3188 2.0(2.0) 0.2460 0.4311 0.1180 0.1613 3.0(3.0) 0.2820 0.4504 0.5085 0.6774 item8 Overall 2.1820 0.8380 0.5251 0.5251 0.0(0.0) 0.0320 0.1762 -0.2942 -0.7214 1.0(1.0) 0.1800 0.3846 -0.3785 -0.5542 2.0(2.0) 0.3620 0.4811 -0.1586 -0.2034 3.0(3.0) 0.4260 0.4950 0.4630 0.5839 item9 Overall 1.2900 1.1386 0.6065 0.6065 0.0(0.0) 0.3480 0.4768 -0.5442 -0.7014 1.0(1.0) 0.2100 0.4077 -0.1941 -0.2743 2.0(2.0) 0.2460 0.4311 0.2505 0.3425 3.0(3.0) 0.1960 0.3974 0.4592 0.6591 item10 Overall 1.1120 1.0797 0.5941 0.5941 0.0(0.0) 0.3680 0.4827 -0.5691 -0.7282 1.0(1.0) 0.3160 0.4654 -0.0193 -0.0252 2.0(2.0) 0.1520 0.3594 0.1754 0.2678 3.0(3.0) 0.1640 0.3706 0.4680 0.7008 item11 Overall 1.2340 1.0457 0.5981 0.5981 0.0(0.0) 0.3120 0.4638 -0.5325 -0.6974 1.0(1.0) 0.2860 0.4523 -0.1524 -0.2024 2.0(2.0) 0.2580 0.4380 0.2715 0.3676 3.0(3.0) 0.1440 0.3514 0.4203 0.6505 item12 Overall 1.3860 1.0154 0.5513 0.5513 0.0(0.0) 0.2120 0.4091 -0.4443 -0.6266 1.0(1.0) 0.3740 0.4843 -0.2159 -0.2758 2.0(2.0) 0.2300 0.4213 0.1430 0.1981 3.0(3.0) 0.1840 0.3879 0.4523 0.6588 item13 Overall 1.2360 1.1255 0.6265 0.6265 0.0(0.0) 0.3700 0.4833 -0.6088 -0.7785 1.0(1.0) 0.1960 0.3974 -0.0622 -0.0892 2.0(2.0) 0.2620 0.4402 0.2165 0.2924 3.0(3.0) 0.1720 0.3778 0.4684 0.6933 item14 Overall 1.1560 1.0891 0.5719 0.5719 0.0(0.0) 0.3600 0.4805 -0.5267 -0.6758 1.0(1.0) 0.2900 0.4542 -0.0985 -0.1306 2.0(2.0) 0.1840 0.3879 0.2145 0.3125 3.0(3.0) 0.1660 0.3725 0.4455 0.6651 item15 Overall 1.1940 0.9392 0.5401 0.5401 0.0(0.0) 0.2520 0.4346 -0.4294 -0.5842 1.0(1.0) 0.4120 0.4927 -0.1964 -0.2483 2.0(2.0) 0.2260 0.4187 0.2706 0.3764 3.0(3.0) 0.1100 0.3132 0.3855 0.6415 item16 Overall 1.3400 0.9891 0.5969 0.5969 0.0(0.0) 0.2560 0.4369 -0.5699 -0.7730 1.0(1.0) 0.2680 0.4434 -0.1103 -0.1482 2.0(2.0) 0.3560 0.4793 0.2700 0.3469 3.0(3.0) 0.1200 0.3253 0.3679 0.5976 item17 Overall 1.8420 1.0350 0.5533 0.5533 0.0(0.0) 0.1160 0.3205 -0.3914 -0.6418 1.0(1.0) 0.2780 0.4485 -0.3520 -0.4701 2.0(2.0) 0.2540 0.4357 0.0005 0.0007 3.0(3.0) 0.3520 0.4781 0.4902 0.6308 item18 Overall 2.5940 0.6856 0.4971 0.4971 0.0(0.0) 0.0140 0.1176 -0.2165 -0.7128 1.0(1.0) 0.0720 0.2587 -0.3701 -0.6972 2.0(2.0) 0.2200 0.4147 -0.2999 -0.4196 3.0(3.0) 0.6940 0.4613 0.4661 0.6123 item19 Overall 1.4000 1.0149 0.5756 0.5756 0.0(0.0) 0.2120 0.4091 -0.4695 -0.6621 1.0(1.0) 0.3580 0.4799 -0.2271 -0.2916 2.0(2.0) 0.2480 0.4323 0.1826 0.2492 3.0(3.0) 0.1820 0.3862 0.4443 0.6488 item20 Overall 1.4400 1.1085 0.6548 0.6548 0.0(0.0) 0.2640 0.4412 -0.5495 -0.7409 1.0(1.0) 0.2580 0.4380 -0.2342 -0.3172 2.0(2.0) 0.2520 0.4346 0.1824 0.2481 3.0(3.0) 0.2260 0.4187 0.5182 0.7208 TEST LEVEL STATISTICS ========================================== Number of Items = 20 Number of Examinees = 500 Min = 0.0000 Max = 59.0000 Mean = 30.4080 Median = 30.0000 Standard Deviation = 12.8631 Interquartile Range = 21.0000 KR21 = 1.1533 ------------------------------------------ RELIABILIY ANALYSIS =========================================================================== Method Estimate 95% Conf. Int. SEM --------------------------------------------------------------------------- Guttman's Lambda_2 0.9198 (0.9093, 0.9297) 3.6420 Cronbach's Alpha 0.9185 (0.9077, 0.9285) 3.6730 Feldt-Gilmer 0.9198 (0.9093, 0.9297) 3.6423 Feldt-Brennan 0.9198 (0.9092, 0.9296) 3.6432 Raju's Beta 0.9185 (0.9077, 0.9285) 3.6730 --------------------------------------------------------------------------- RELIABILIY IF ITEM DELTED ================================================================= Item Lambda_2 Alpha F-G F-B Raju ----------------------------------------------------------------- item1 0.9169 0.9154 0.9169 0.9169 0.9154 item2 0.9150 0.9136 0.9150 0.9149 0.9136 item3 0.9171 0.9158 0.9171 0.9170 0.9158 item4 0.9159 0.9144 0.9159 0.9158 0.9144 item5 0.9159 0.9144 0.9159 0.9159 0.9144 item6 0.9167 0.9152 0.9167 0.9166 0.9152 item7 0.9148 0.9134 0.9148 0.9147 0.9134 item8 0.9170 0.9157 0.9170 0.9169 0.9157 item9 0.9152 0.9138 0.9152 0.9152 0.9138 item10 0.9156 0.9141 0.9156 0.9155 0.9141 item11 0.9155 0.9140 0.9155 0.9154 0.9140 item12 0.9165 0.9150 0.9165 0.9165 0.9150 item13 0.9147 0.9133 0.9147 0.9147 0.9133 item14 0.9161 0.9146 0.9161 0.9161 0.9146 item15 0.9167 0.9153 0.9167 0.9167 0.9153 item16 0.9156 0.9140 0.9156 0.9155 0.9140 item17 0.9165 0.9150 0.9165 0.9165 0.9150 item18 0.9175 0.9164 0.9174 0.9174 0.9164 item19 0.9160 0.9145 0.9160 0.9160 0.9145 item20 0.9140 0.9126 0.9140 0.9140 0.9126 ----------------------------------------------------------------- Elapsed time: 0 secs, 155 msecs