[IPAC-List] Definitions of validity

[Joel Wiesen]

How similar/different are the definitions of validity below and which 
might you favor?

1. Validity is the degree to which a test measures what it SHOULD 
measure, in light of its intended use(s).

2. Validity is the degree to which a test measures what it INTENDS to 
measure, in light of its intended use(s).

3. Validity is the degree to which research or theoretical evidence 
supports the proposed use(s) of a test.

4. APA Stds: The degree to which accumulated evidence and theory support 
specific interpretations of test scores entailed by proposed use(s) of a 
test.

Joel


-- 
Joel P. Wiesen, Ph.D., Director
Applied Personnel Research
62 Candlewood Road
Scarsdale, NY 10583-6040
(617) 244-8859
http://appliedpersonnelresearch.com




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