Steven L. Wise|Christine E. DeMars
An Application of Item Response Time: The Effort?Moderated IRT Model
James Madison University|James Madison University
validity inferences based achievement test scores dependent amount effort examinees put forth taking test lowstakes tests problem particularly prevalent consequent need psychometric models take account differing levels examinee effort article introduces effortmoderated irt model incorporates item response time proficiency estimation item parameter estimation two studies effortmoderated model rapid guessing ie reflecting low examinee effort present one based real data simulated data effortmoderated model performed better standard 3pl model specifically found effortmoderated model showed better model fit b yielded accurate item parameter estimates c accurately estimated test information yielded proficiency estimates higher convergent validity