Two studies investigated the functional equivalence of three different scoring systems used to assess the child's ability to understand and carry out multiplicative classification tasks. All three scoring criteria produced reliable and homogeneous tests. Their factor matrices were similar, and the corresponding factor structures were invariant…

Reports study which compared the value of Piagetian tasks--seriation, conservation and multiple classification--to that of traditional intelligence tests--Cattell and PMA 5 to 7 subtests--as predictors of number language, simple computation, and verbal arithmetic achievement in 312 children from kindergarten to grade 4. Fifty references are…

A longitudinal study to determine the conditions surrounding the integration of Negroes, Mexican Americans, and Anglos in the Riverside Unified School District in Riverside, California, began in school year 1965-66. The sample included students in kindergarten through grade 6. A sample of kindergarten students was added to the original sample…

This study explored the extent of measurable differences in performance on Piagetian tasks among six year olds who are exposed to one or two languages. Subjects (N=120) were divided into four groups: (1) native English-speaking Anglo-Americans who live in the United States; (2) native Japanese-speaking Japanese who live in Japan; (3) native…