Psychometric properties of the rey-osterrieth complex figure: Lezak-osterrieth versus denman scoring systems

Abstract

This study computes and compares interrater and internal consistency reliabilities of the Lezak and Denman scoring systems using three independent raters (N = 318; copy and recall phases). In general, interrater and internal consistency reliabilities for both scoring systems were high and equivalent. Based on the levels of discriminant indices, one item in the recall phase of both scoring methods failed to meet inclusionary criteria for scale retention. However, exclusion of the item would not meaningfully improve the reliability of either system; therefore, no changes in the present protocols are warranted. Selection of scoring method should be based on criteria such as availability of appropriate normative data, cost, or time in scoring.