Author Question: The optimal item difficulty of a six-alternative test is a. .50. b. .585. c. .60. d. ... (Read 37 times)

mikaylakyoung · **on:** Jun 19, 2018

The optimal item difficulty of a six-alternative test is

a. .50.
b. .585.
c. .60.
d. .625.

Question 2

Dr. Johnson is trying to establish norms for his new test. He determined that 50 of the people in the standardization sample should be Hispanic, 20 Caucasian, 15 Asian, and 15 African American. He is creating (a)

a. normalization group.
b. representative sample.
c. random sample.
d. population statistics.