A developmental and cross-cultural study of the influences of rule structure and problem composition on the learning of conceptual classifications

Five experiments were conducted permitting direct comparisons in the way Ss of different ages and cultures solved conceptual problems. One group of problems (Traditional) could be solved using a reference rule of conjunction or disjunction. Another group of problems (Intradimensional) could be solved either by one of the reference rules, or by a structurally simpler rule. Analysis of American performance confirmed that older Ss not only solved using the simpler rule more often than younger Ss, but when they did so they solved faster. For both American age groups, solution using the simpler rule led to no difference in performance between conjunctive and disjunctive Intradimensional problems. Conjunction proved easier than disjunction only for the Traditional problems. Unlike Americans, the Kpelle of Liberia did not solve using the simpler rule, and found conjunction easier than disjunction for both Traditional and Intradimensional problems. When a memory aid was provided the Kpelle showed a pattern of performance exactly like Americans.     

Parenting in Hawaii: Three cultural groups at the beach

This study shows systematic differences in parenting behaviour across three cultural groups in Hawaii. Japanese-, Caucasian- and Hawaiian-American parents (N =149) are observed as they interact with their young children at the beach. The observed families come to the beach in different groupings. Hawaiian groups are the largest, many consisting of five or more people. Most Japanese families resemble the ‘typical’ nuclear family: two parents and one or two children. More Caucasian and Hawaiian parents come to the beach alone with their children than do Japanese-American parents. Parents in the three groups spend their time differently. Japanese-American parents focus almost exclusively on their children. They play with, watch or take care of them for most of the observed time. They rarely engage in solitary activities, such as reading or sunbathing, or in social activities, such as talking with each other. Caucasian parents engage in solitary activities more frequently. They encourage children to entertain and care for themselves. Hawaiian parents interact extensively with other adults, and Hawaiian children play among themselves without prompting. The Hawaiian parents interact less frequently with their children than do parents in the other groups. These findings are discussed in terms of cultural differences in views of the parenting role, the range of people socializing children and childrearing emphases on independence vs dependence, aloneness vs social involvement and innovation vs imitation.