A Developmental Comparison of Social Class and Verbal Ability Influences on Piagetian Tasks

Publisher Website
Google Scholar
Abstract
The present investigation attempted to evaluate the respective influences of socioeconomic status and verbal ability levels, as determinants of performance on Piagetian concrete operations tasks. A sample of 160 subjects (kindergarten to fourth grade) were matched on socioeconomic status and verbal ability levels. A battery of Piagetian tasks was administered, including a relational terms pretest, provoked and unprovoked numerical correspondence, unidimensional seriation, height and width, multiple seriation, and conservation of surface area. Results of factorial (grade level × sodoeconomic status × verbal ability × sex) analyses of variance indicated (a) an absence of significant socioeconomic status effects for any of the Piagetian tasks, (6) a significant main effect for the verbal ability and age-grade level factors on the majority of tasks excluding unidimensional height seriation, (c) a general absence of sex main effects or higher order interactions. The lack of difference with regard to socioeconomic-status levels indicates that the previous research which revealed notable socioeconomic-status influences may have had socioeconomic status confounded to varying degrees with differences in underlying verbal skills.