________ is used as an estimate of reliability when one administers a test with x number of items designed to assess a topic, then statistically analyzes the degree to which responses to the items vary together.
A) Equivalent form estimate
B) Retest estimate
C) Internal consistency
D) Internal comparison estimate

Question

Quizplus · Accepted Answer

Internal consistency refers to the extent to which all items on a test or questionnaire are measuring the same construct or idea. One way to measure internal consistency is by using Cronbach's alpha, which calculates the average correlation between each item on the test. A high alpha coefficient indicates that the items are strongly related and measuring the same construct, while a low alpha coefficient indicates that the items are not consistently measuring the same thing. Therefore, internal consistency is used as an estimate of reliability in this scenario.

________ Is Used as an Estimate of Reliability When One