Author Question: If 8 out of 10 students in the upper group and 2 out of 10 students in the lower group answer an ... (Read 35 times)

kellyjaisingh · **on:** Jun 20, 2018

If 8 out of 10 students in the upper group and 2 out of 10 students in the lower group answer an item correctly, then the difficulty and discriminating power of the item would be

A. 50, .60.
B. 50, .80.
C. 60, .60.
D. 60, .80.

Question 2

Which of the following is a major limitation of using item analysis procedures with the typical classroom test?

A. the complexity of the computations
B. the difficulty of the interpretations
C. the small number of students
D. the time needed to collect the data