What is evaluated by content validity in a psychological test?

Content validity refers to the extent to which a test measures all aspects of the psychological construct it purports to assess. This is particularly important in psychological testing because it ensures that the items included in the test are representative of the entire domain of the construct. For example, if a test is designed to measure depression, content validity would assess whether the test items cover all relevant symptoms of depression, such as mood, behavior, and cognitive aspects.

In establishing content validity, experts typically evaluate the test's content to ensure it's comprehensive and relevant, which helps in accurately interpreting the test results. If a test omits significant dimensions of the construct, it may yield incomplete or misleading conclusions about an individual's psychological condition.

The other options do not accurately reflect the concept of content validity. For instance, one option discusses standardized outcomes, which relates more to criterion validity than content validity. Another option refers to correlations between measures, which pertains to construct validity, and the final choice addresses test-retest reliability, focusing on consistency across time rather than the comprehensiveness of the construct measured. Thus, the focus of content validity is solely on the breadth and appropriateness of the content covered in the test regarding the intended psychological construct.