When researchers measure an unchanging phenomenon at two different times, the degree to which the two measurements are related is called:
A) Test-Retest reliability
B) Criterion validity
C) Predictive validity
D) Inter-item reliability
E) Alternate-forms reliability

Question

Quizplus · Accepted Answer

Test-Retest reliability refers to the degree of consistency between two separate measurements of the same phenomenon over time. Therefore, this is the best choice for the given scenario. Criterion validity, predictive validity, inter-item reliability, and alternate-forms reliability are all different types of reliability, but they are not directly relevant to measuring an unchanging phenomenon at two different times.

When Researchers Measure an Unchanging Phenomenon at Two Different Times