What do we mean when we say that a test is internally consistent?
A) a test taker only takes the test once
B) a test taker's scores will remain similar over time
C) the test questions are measuring a similar concept
D) the scores of a group of test takers will be very similar

Question

Quizplus · Accepted Answer

Internal consistency refers to the degree to which the items on a test are measuring the same construct or concept. This is typically assessed using measures like Cronbach's alpha or split-half reliability, which calculate the correlation between individual items or subtests within a test. If a test is internally consistent, it suggests that the items are all measuring the same thing, rather than tapping into unrelated factors or sources of error.

What Do We Mean When We Say That a Test