This study provides the first direct evidence of cognitive continuity for multiple specific information processing abilities from infancy and toddlerhood to pre-adolescence, and provides support for the view that infant abilities form the basis of later childhood abilities. Data from a large sample of children (N = 131) were obtained at five…

Converging findings in psychology, neuroscience, education, and economics suggests that child persistence in learning represents an important determinant of academic success during the school years. Nevertheless, the developmental origins of productive learning behaviors are not well understood. Some findings suggest that executive function skills…

The present report assesses information processing in the toddler years (24 and 36 months), using a cohort of preterms (less than 1750 g) and full-terms initially seen in infancy. The children received a battery of tasks tapping 11 specific abilities from four domains--memory, processing speed, attention, and representational competence. The same…

A 2003 paper in this journal reported results from a large sample of twins assessed at 2, 3 and 4 years of age on parent-administered tests and reports of their verbal and nonverbal ability. We found clear evidence for phenotypic general cognitive ability (g) that accounted for about 50% of the variance, for modest genetic influence on g (about…

The present study assessed whether birth weight, maternal child rearing behaviors, and maternal intelligence combine in an additive or in a non-linear interactive fashion to influence cognitive performance in a sample of 24-month old full-term appropriate and low birth weight Jamaican children. Child cognitive performance was measured using the…

The validity of the fourth edition of the Stanford-Binet (S-B IV) test was studied with 30 linguistically precocious children at ages 20, 24, and 30 months. Validity at 24 months was questionable. Problems in using the test with very young children are discussed. (SLD)

This study assessed whether specific nutritional variables added unique variance to the prediction of toddler development outcomes in an Egyptian village, using 153 toddlers. Results suggest that, for the 18- to 23-month age, specific nutritional predictors can be identified and that there is specificity of nutritional action. (SLD)