The linked concepts of "scaffolding" and the Zone of Proximal Development (ZPD) were originally applied to the context of asymmetrical teaching and learning with a teacher or adult explicitly supporting a learner, usually a child, to achieve tasks beyond their ability when working alone. In this paper we investigate how these concepts…

The culture loaded Peabody Picture Vocabulary Test (PPVT) and the culture reduced Raven's Progressive Matrices (Colored and Standard forms) were examined and compared for large samples of white, black, and Chicano school children, K-8, in three California school districts. On both the PPVT and the Raven's the three ethnic groups show large mean…

Investigated the internal consistency reliability estimates of the Raven Coloured Progressive Matrices (CPM) for 96 Anglo and Mexican American third-grade boys from low socioeconomic status background. The results showed that the reliability estimates of the CPM for the two ethnic groups were acceptably high and extremely similar in magnitude.…

This study examined the DISCOVER (Discovering Intellectual Strengths and Capabilities through Observation while allowing for Varied Ethnic Responses) assessment (C. Maker, A. Nielson, and J. Rogers, 1994) as a concurrent measure of the Raven Progressive Matrices (J. Raven, J. Court, and J. Raven, 1977). It also investigated gender differences in…

The relationship of the Progressive Matrices Test (PM) to the Lorge-Thorndike Intelligence Test (LTIQ) and the Wechsler Intelligence Scale for Children (WISC) is examined. Predictive power of these measures with respect to a number of achievement measures was also investigated. The initial sample consisted of 242 first graders and 281 second…