Which of the following statements about Cronbach's alpha is TRUE?
A) Cronbach's alpha assesses the degree to which people make similar responses to the items on a measure.
B) A high Cronbach's alpha indicates that the measure has a high degree of validity.
C) A high Cronbach's alpha indicates that a measure is unidimensional (that is, all the items on the measure assess the same construct.
D) As the number of items on a scale increases, Cronbach's alpha decreases.

Question

Quizplus · Accepted Answer

Cronbach's alpha assesses the degree to which people make similar responses to the items on a measure. It is a measure of internal consistency, reflecting how closely related a set of items are as a group. It does not assess validity or unidimensionality, and it is not affected by the number of items on a scale.

Which of the Following Statements About Cronbach's Alpha Is TRUE