Question: F. Study the following data. Compute for the difficulty index and the discrimination index of each set of scores. 1. N = 80, number of

F. Study the following data. Compute for the difficulty index and the discrimination index of each set of scores.

1. N = 80, number of wrong answers: upper 25% = 2 lower 25% = 9

2. 'N = 30, number of wrong answers: upper 25% = 1 Tower 25% = 6

3. N = 50, number of wrong answers: upper 25% = 3 Tower 25% = 8

4. N = 70 number of wrong answers, upper 25% = 4 Tower 25% = 10

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