Solved

_________________Is a Statistical Index of How Efficiently an Item Discriminates

Question 56

Multiple Choice

_________________is a statistical index of how efficiently an item discriminates between persons who obtain high and low scores on the entire test.

A) Item-discrimination index
B) Item-difficulty index
C) Item-validity index
D) Item-tension index

Related Questions

Q51: For true-False items, the optimal level of

Q52: From a psychometric standpoint,_ questions are the

Q53: The scaling method that utilizes a rating

Q54: The expression U - L)/N defines the<br>A)

Q55: A _scale presents the examinee with five

Q57: A key step in using the Method

Q58: A dichotomously scored test item with good

Q59: _has to do with accurate identification of

Q60: Traditionally, the different ways of accumulating validity

Q61: Many psychometric theorists regard_ validity as the