The domain of personality assessment

In the domain of personality assessment, walk through the steps of how you would construct a measure based on content validity. Next, walk through the steps of explaining how to construct a measure based on empirical criterion keying.

How do you measure validity and reliability?
How are reliability and validity assessed? Reliability can be estimated by comparing different versions of the same measurement. Validity is harder to assess, but it can be estimated by comparing the results to other relevant data or theory.