Whether high quantities of center-based care cause behavior problems is a controversial question. Studies using covariate adjustment for selection factors have detected relations between center care and behavior problems, but studies with stronger internal validity less often find such evidence. We examined whether within-child changes in hours in…

This study explored whether early elementary school aged children's externalizing problems impede academic functioning and foster negative social experiences such as peer victimization, thereby making these children vulnerable for developing internalizing problems and possibly increasing their externalizing problems. It also explored whether early…

This study examined how the link between neighborhood poverty and the timing of sexual initiation varies as a function of age, gender, and background characteristics. A sample of N = 2,596 predominately White Canadian adolescents from the National Longitudinal Survey of Children and Youth was used. Sexual initiations occurring between 12 and 15…

The frequency and distribution of social problem-solving strategies, goals, targets, and outcomes were coded during preschoolers' free play. Flexibility and persistence in problem-solving sequences were examined, and the relative importance of strategies, goals, targets, and the identity of the problem solver in predicting social problem-solving…

Explores some attributional determinants of third and fourth graders' self-punishment following transgression in a moral situation. Results were interpreted as supporting the hypothesis that children who are told by adults that they possess desirable moral characteristics experience particularly strong remorse when they fail to exercise…

Data from several studies indicated that most children understood what they were asked to do in psychological studies. Few under the age of 12 years believed their performance would be confidential. Many children believed there would be negative consequences if they ended their participation. Parental permission added pressure on children to…

The performance of children ages three through eight years on a series of class-inclusion problems was examined in two studies. Three patterns of performance were observed: three- and four-year-olds responded in an approximately haphazard pattern, five- and six-year-olds tended to be consistently wrong, and seven- and eight-year-olds showed a…

Examined the association of neighborhood characteristics on competencies of Canadian preschoolers. Found that verbal ability positively related to residing in neighborhoods with affluent residents and negatively to residing in neighborhoods with poor residents and in neighborhoods with low cohesion, even after controlling for family SES. Behavior…

Two experiments were conducted to examine behaviors that characterize play with convergent and divergent materials and the effects of play on convergent and divergent problem solving among 64 3- and 4-year-olds. (Author/RH)

Examined contributions of attachment, maternal-reported stress, and mother-child interaction to the prediction of teacher-reported behavior problems in 121 French-Canadian children. Security of attachment significantly predicted likelihood of behavior problems: insecure children labeled controlling or other were most at risk for…

Examines the social, cognitive, and social-cognitive correlates of nonsocial play in 122 four-year-olds observed for 20 minutes during free play. Subjects were given a role-taking test and tests of social and impersonal problem-solving skills. Sociometric popularity and social competence, as rated by teachers, were also assessed. (Author/RH)

Assessed attachment/indiscriminate friendliness in children who spent at least eight months in Romanian orphanages (RO); a nonadopted, never-institutionalized Canadian group; and an early-adopted Romanian group. Found that RO children showed more insecure attachment and indiscriminate friendliness than others. Insecure RO children had more…