This study of the relation of variables of home environment to differences in children's cognitive development used a sample of 25 pairs of grade five boys in the 10-12 age range matched for general intelligence but discrepant with respect to verbal ability. Home environmental measures were obtained by means of a 70 minute interview with the…

This cross-sectional study explored whether participation, from early childhood, in play involving different cognitive abilities predicts visuo-spatial achievement at ages 9, 12, and 15. Based on parental assessment, prior and present practice of spatial manipulation play was found to be consistently more frequent in boys than in girls; the…