If your measure has test-retest reliability,
A) It is clear that the items measure a similar construct.
B) It is possible to predict an outcome measure.
C) The construct being measured is stable.
D) The measure results in similar scores on both tests.

Question

Quizplus · Accepted Answer

Test-retest reliability refers to the consistency of a measure over time, meaning if the same test is administered to the same group under the same conditions after a period, it should yield similar results. This indicates the measure's stability and reliability over time, not necessarily that the construct is stable (C), that the items measure a similar construct (A), or that it can predict an outcome measure (B).

If Your Measure Has Test-Retest Reliability