How to stay valid in a measured way


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Version: 1.0

Last Updated: 28-02-2020 17:42


This article explains how we need to reframe the idea of Validity as traditionally laid out by the Standards for Educational and Psychological Testing given that the probabilistic Rasch measurement approach is the only way to develop scientific people measures. This article does this in a way that contextualises how Rasch analysis of item response data explains, what we have for decades referenced in the Standards for Educational and Psychological testing, as Validity.

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