While the majority of published research on conceptual change has focused on how misconceptions can be abandoned or modified, some recent research findings support the hypothesis that acquired scientific knowledge does not necessarily erase or alter initial non-scientific knowledge but rather coexists with it. In keeping with this…

Reports results of questionnaires and interviews conducted with 123 parents (mostly mothers) of preschool, first-grade, and sixth-grade children. Finds that parental limitations on children's altruism are based on cogent rationales and are a direct function of the situational cost involved and the age and familiarity of the recipient. (CB)

In this study preschool, first grade, and sixth grade children played games which assessed ratio-proportionality ability, thought to be a precursor to proportionality ability, thought to be a precursor to equity allocations. The 48 children (eight boys and eight girls from each grade) played a game with one train which had six cars and one train…

Similarity of friends and the degree to which friendship selection criteria and similarity change as a function of age were investigated in this study. Subjects were 27 preschoolers, 34 third graders, and 30 sixth graders. Fifty-three percent were male, 47 percent were female, and 29 percent were black. Friendship choices were measured by…