In a perfect test-retest reliability,in which a respondent is asked a series of questions and then is asked the same set of questions after a period of time has passed,_____.

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In a perfect test-retest reliability, the respondent is expected to give the same responses on both occasions. Therefore, a correlation of 1.0 exists between the two sets of responses, indicating perfect reliability. Options A and C are incorrect because test-retest reliability assumes that the responses remain consistent over time, and memory lapses should not significantly affect the scores. Option B is incorrect because a correlation of .50 indicates moderate reliability, not perfect reliability.

In a Perfect Test-Retest Reliability,in Which a Respondent Is Asked