Evaluating Operational Definitions When a researcher constructs a multiple-item questionnaire to measure a single construct like anxiety, she can measure ____ to evaluate the scale's internal consistency.
A)content reliability
B)interitem reliability
C)interrater reliability
D)test-retest reliability

Question

Quizplus · Accepted Answer

Interitem reliability is the extent to which different items on a questionnaire that are meant to measure the same construct produce similar scores. Therefore, it is appropriate to measure interitem reliability when constructing a multiple-item questionnaire to measure a single construct like anxiety. It will help ensure the scale's internal consistency.

Evaluating Operational Definitions When a Researcher Constructs a Multiple-Item Questionnaire