In an effort to determine reinforcement and its effectiveness among Mexican American migrant and non-migrant children, 2 tests, the Children's Locus of Control Scale and the Peabody Picture Vocabulary Test, and some questions were administered to 60 first and second graders from 2 elementary schools in Laredo, Texas. It was expected that Mexican…

Research data consistently demonstrates that white school children score higher on tests of academic ability than Negro children of the same age and grade level, and that this discrepancy increases with time. Is this discrepancy due to a lack of learning proficiency on the part of Negro children or to a lack of learning opportunity? In an attempt…

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…