Calculate the difficulty index for Item 2 in Table 1 below The difficulty level for Item 2 is R number of students responding correctly N number of students in group Table 1 Test Item Data Item p(ul) d A B C D 1 p d U 0 2 12 1 L 2 4 8 1 2 p d U 14 0 1 0 L 10 2 1 2 3 p d U 0 0 0 15 L 4 4 6 1 4 p d U 5 5 4 1 L 2 4 5 4 Group of answer choices 80 very difficult 27 moderately easy 13 very easy 80 moderately easy

Question

Calculate the difficulty index for Item 2 in Table 1 below  The difficulty level for Item 2 is  R   number of students responding correctly N   number of students in group Table 1 Test Item Data Item  p(ul) d A B C D 1 p  d  U 0 2 12  1 L 2 4 8 1 2 p  d  U 14  0 1 0 L 10 2 1 2 3 p  d  U 0 0 0 15  L 4 4 6 1 4 p  d  U 5 5  4 1 L 2 4 5 4 Group of answer choices  80  very difficult  27  moderately easy  13  very easy  80  moderately easy

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Question: Calculate the difficulty index for Item 2 in Table 1 below. The difficulty level for Item 2 is: R = number of students responding correctly

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