The role of adolescents' disclosure to their parents in their academic adjustment was examined in a study of 825 American and Chinese adolescents (mean age = 12.73 years). Four times over the seventh and eighth grades, adolescents reported on their spontaneous disclosure of everyday activities to their parents, the quality of their relationships…

This study undertook to develop an improved conceptual system for explaining effective behavior; to build reliable measures of the components of that behavior; to develop and apply the measures internationally; and to validate the measures and concepts against objective criteria of achievement. An eight-nation team defined three sets of components…

The High School Mathematics Test was administered to 9,582 high school students in Illinois and to 1,700 in Japan. The Japanese sample scored more than two standard deviations above the American sample. Factors associated with mathematics achievement included number of mathematics courses taken and student motivation. (GDC)