@DataDiva @AssessWell would assume validity established using subject matter experts and residual analysis using IRT, thats what I would do
In reply to https://twitter.com/JennBinis/status/605021078596009985
@DataDiva @AssessWell would assume validity established using subject matter experts and residual analysis using IRT, thats what I would do
By Greg McVerry · Permalink · Original tweet
