Before the Test Event: A Priori Validity Evidence
There are two aspects to theory-based validity. One concerns a priori evidence collected before the test event, the other a posteriori evidence generated after the test has been administered (Weir 1988a).
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- Bachman (1990) gives good coverage of the cognitive aspects of ‘construct validity’.Google Scholar
- Bachman and Palmer (1996) is an update on Bachman 1990, but with more practical exemplification.Google Scholar
- Messick (1989) provides a much referred to and important discussion of validity, if somewhat opaque in parts.Google Scholar