The purpose of this study was to compare the effectiveness of the Raven's Standard Progressive Matrices, the Naglieri Nonverbal Abilities Test (NNAT), and the Iowa Test of Basic Skills (ITBS) in selecting for ethnically diverse students who may be gifted. The participants of the study were 175 students enrolled in Grades 3-5 and Grade 8 in a…

The Raven Coloured and Standard Progressive Matrices (RCPM and RSPM) and a group achievement test were administered to 908 Navajo students in grades 2-12. Results suggest that the RCPM is appropriate for use through grade 2 and the RSPM in grades 3-9. Discusses gender differences and differences between students in schools on and off the Navajo…

Correlations between the Standard Progressive Matrices test (SPM) and the California Achievement Test, Reading, Language, and Mathematics Tests were examined for 99 Hispanic and 93 non-Hispanic Caucasian seventh-grade students. All correlations were highly significant. Supports continued use of the SPM as a measure of nonverbal intellectual…

The several statistical methods described for detecting test bias in terms of various internal features of a person's test performances and the test's construct validity can be applied to any groups in the population. But the evidence regarding groups other than U.S. blacks and whites is either lacking or is still too sketchy to permit any strong…