Multiple Choice
The point-biserial correlation between the item score and the score on the criterion variable is needed to compute the
A) item-difficulty index
B) item-reliability index
C) item-validity index
D) index of item discrimination
Correct Answer:

Verified
Correct Answer:
Verified
Q39: To help insure that a test contains
Q40: If an item such as "I drink
Q41: The optimal value for the item-discrimination index
Q42: Suppose a new measure of extraversion possesses
Q43: A construct possesses the following characteristics):<br>A) it
Q45: An) _effect is observed when significant numbers
Q46: In general, the optimal level of item
Q47: "Interest in and concern for others" defines<br>A)
Q48: A graphical display of the relationship between
Q49: _validity is particularly relevant for entrance examinations