In order to assess the test-retest reliability of a measure the researcher should
A)administer the measure at two different times to the same people and compute the correlation between the two sets of scores.
B)administer the measure at two different times to different people and compute the correlation between the two sets of scores.
C)correlated individuals' scores on the measure with a different measure designed to measure the same construct.
D)ask two people to complete the measure several times and compute the correlations across the many time periods.

Question

Quizplus · Accepted Answer

The best way to assess test-retest reliability is to administer the measure to the same people at two different times and compute the correlation between the two sets of scores. This allows for an assessment of how consistent the results of the measure are over time. Option B involves different people and therefore the correlation cannot determine test-retest reliability of the measure. Option C involves assessing concurrent validity, not test-retest reliability. Option D involves comparing the responses of two people rather than the same person, which is not a good way to assess test-retest reliability of a measure.

In Order to Assess the Test-Retest Reliability of a Measure