When using Likert scaling researchers often combine survey items resulting in a single value to represent the construct being measured. In doing so the researcher must be confident that the survey is internally reliable. As a measure of internal reliability they should report
A) Cohen's d.
B) Cronbach's alpha.
C) ANCOVA.
D) measures of predictive validity.

Question

Quizplus · Accepted Answer

Cronbach's alpha is a measure of internal consistency, which is how closely related a set of items are as a group. It is considered to be a measure of scale reliability. A high value for Cronbach's alpha indicates that the items measure the same underlying construct, making it appropriate for assessing the internal reliability of a survey instrument.

When Using Likert Scaling Researchers Often Combine Survey Items Resulting