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02Aug2013

Never say a test is valid, (conclusion)

  • By Ian Bradley
  • 2 Tags
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I my previous post, I recalled a recent professional interaction where a research proposal claimed that a particular test was valid. The evidence cited to support this claim was defined in the original study of the test’s development.  I pointed out that the phrase; “the test is valid” although commonly used is psychometrically incorrect. Firstly,
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