A Meta-Analytic Evaluation of Naglieri Nonverbal Ability Test: Exploring Its Effectiveness

• In Event: Identification: Tools and Techniques

Abstract

The Naglieri Nonverbal Ability Test (NNAT) was developed to more equitably identify students of color. In this meta-analytic evaluation, we investigated (a) the generalizability of validity evidence of NNAT with other measures (part I; 59 effect sizes from 22 studies) and (b) whether NNAT truly meets its goal to identify more culturally diverse students (part II; 7 effect sizes from 7 studies). In part I, the overall effect size of r was 0.44 with the moderator analysis results showing high correlations when Naglieri is an author of the study. In part II, although NNAT identified more students of color compared to other nonverbal tests (overall effect size of RR was 0.42), students of color still remain underrepresented in gifted services.

Authors

• Hyeseong Lee, Lewis University

• Nesibe Karakis, University of Iowa

• Bekir Olcay Akce, Purdue University

• Abdullah Tuzgen, Purdue University

• Sareh Karami, Mississippi State University

• Marcia L. Gentry, Purdue University

• Yukiko Maeda, Purdue University