What Value Is Estimated with a Confidence Interval Using the Repeated-Measures

question 11

Multiple Choice

What value is estimated with a confidence interval using the repeated-measures t statistic?

• A)The mean for a sample of difference scores
• B)The mean for a population of difference scores
• C)The difference between two population means
• D)The difference between two sample means

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Definitions:

Contrasted-Groups Method

A statistical method used in psychometrics to validate the effectiveness of a test by comparing the scores of groups with known differing characteristics.

Validity

The degree to which a test, tool, or study accurately measures or assesses what it is intended to.

Reliability

The degree to which an assessment tool produces stable and consistent results over time.

Validity

The extent to which a concept, conclusion or measurement is well-founded and likely corresponds accurately to the real world.