An evaluation of the construct validity of the Developmental Test of Visual‐Motor Integration using the Rasch Measurement Model

Abstract

Theoretically, the VMI items are developmentally ordered; however, this ordering was not mirrored by the item logit difficulty scores obtained. This has scoring implications, where scoring a respondent's VMI test booklet is terminated after three consecutive items are not passed. Clinicians should also be aware that item 9 may exhibit bias related to gender.