Because a person's true abilities can change between two administrations of a test, it is generally true that
A) test-retest procedures cannot produce good reliability estimates.
B) the shorter the time between the two administrations, the higher the reliability.
C) the length of time between two administrations has little effect on reliability.
D) a test developer needs to calculate coefficient alpha to estimate stability.

Question

Quizplus · Accepted Answer

The shorter the interval between two test administrations, the less likely it is for a person's true abilities or external factors to change significantly, leading to higher reliability in the measurement of those abilities over time.

Because a Person's True Abilities Can Change Between Two Administrations