Young children's change in strategies of size comparison: Effects of task repetition and strategy evaluation

This study examined how young children change their strategies for size comparison. Twenty-two 5 and 6-year-old children were asked to compare the sizes of geometric figures and their strategies were observed once a week over three weeks. Half of the children were also asked to evaluate presented strategies for comparing geometric figures. It was found that over three weeks not only children who evaluated the strategies but also children who did not increased correct responses, the strategy of placing one figure on another, and the strategy of adjusting two figures by two dimensions. Although more children became aware of the effectiveness of those strategies, there was no relationship between the evaluation and use of strategies.     

The effects of prosodic features and wordlikeness on nonword repetition performance among young Japanese children1

This study investigated how prosodic aspects and wordlikeness of nonwords affect young Japanese children's repetition of nonwords. We contrasted two conditions in which a nonword comprised of two morae was pronounced with and without a small pause between the two morae. We also manipulated accent patterns of presentation of nonwords. The results indicated that the presence of a small pause in a nonword had a facilitating effect on the repetition of nonwords. The advantage of high‐wordlike sequences over low‐wordlike sequences was observed only when the sequence was presented without a pause. In contrast, the effect of accent patterns of presentation interacted with vocabulary sizes of children. These results were interpreted in terms of the framework of phonological working memory and the segmentation of the spoken Japanese language.     

Development of the understanding of character constancy: Expectations of the behavior of friendly and unfriendly peers

Abstract: This study examines developmental changes in the tendency of young children to form generalized expectations of the behavior of friendly and unfriendly classmates in their nursery school. Subjects aged 4, 5, and 6 selected friendly, unfriendly, and neutral peers according to their expected behavior in a particular situation and then predicted the peers' behavior in four situations, one of which was similar to that used in the selection process. It was found that at the age of 4 the expectations of the behavior of unfriendly peers differed from those of the behavior of the other peers, and that by the age of 5 the expectations of the behavior of friendly peers were fairly consistent across different situations. Additionally, the results agreed with our hypothesis that younger children's expectations regarding their peers' behavior toward them are more stable and congruous with the peers' character type than those toward an imaginary friend, as far as the expectations of unfriendly peers' behavior is concerned.