Which item statistics would most likely be found for an item

Which item statistics would most likely be found for an item on a national standardized

achievement test used to rank students?

A. p = .50, d = -0.40

B. p = .85, d = +0.40

C. p = .50, d = +0.40

D. p = .15, d = -0.40

If a student ranks 5th in a class of 50, the percentile rank would be

A. 5.

B. 10.

C. 45.

D. 90.

Solution

Q1.

B. p = .85, d = +0.40

percentage of 0.85 is most likely to be fall in the sample and

most likely be found for an item on a national standardized achievement test used to rank students

Q2.

D. 90

5th in a class of 50. the percentile rank would be 100 * 5/50 = 10

Student percentile rank would be 100- 10 = 90