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Mathematics, 05.12.2021 18:20 tamikagoss22

Problem 3 (10 points) a. Using the data set for 20 students on a 10-item test, calculate
item difficulty and index of discrimination for each item. Use
the top five students to make up the upper group; and the bottom
five for the lower group. Present your results in the table
provided below (include the computations).
Item # Item Difficulty Item Discrimination Index
1
2
3
5
6
7
8
9
10


Problem 3 (10 points)

a. Using the data set for 20 students on a 10-item test, calculate
item dif

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Answers: 1

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Problem 3 (10 points) a. Using the data set for 20 students on a 10-item test, calculate
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