Gender differences in variance and means on the Naglieri Non-verbal Ability Test: Data from the Philippines

Abstract

Background. Research on gender differences in intelligence has focused mostly on samples from Western countries and empirical evidence on gender differences from Southeast Asia is relatively sparse. Aims.This article presents results on gender differences in variance and means on a non-verbal intelligence test using a national sample of public school students from the Philippines. Sample.More than 2,700 sixth graders from public schools across the country were tested with the Naglieri Non-verbal Ability Test (NNAT). Methods.Variance ratios (VRs) and log-transformed VRs were computed. Proportion ratios for each of the ability levels were also calculated and a chi-square goodness-of-fit test w..