Multiple Choice
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.
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q10: In a 100-item criterion-referenced test, how many
Q11: A fellow teacher's review of test items
Q12: Item discriminating power should typically not be
Q13: The effect of guessing on scores can
Q14: A distracter in a multiple-choice item is
Q15: The 10 students with the highest scores
Q16: If test directions instruct students to "answer
Q17: An item analysis yields the following results
Q18: If a test is composed of items
Q20: On a test of 50 students, if