Aim: To investigate developmental trajectories in early childhood and predictors of class assignment. Methods: Data were available for Gen2 infants at 12 (n = 2275), 24 (n = 1845) and 36 (n = 2110) months of age in the Raine Study. Latent growth class analysis was used to identify developmental trajectories based on the Ages and Stages…

Although Baby Sign is gaining in popularity, there is a scarcity of research supporting its use. The research that has been conducted is conflicting. In the current study, nine families with children ranging in age from six months to two years and five months participated in a baby sign workshop. A pre--post-test design was used to assess the…

Examines the development of normative sleep-wake state characteristics in full-term infants, and atypical state characteristics as presented in several clinical populations including preterm and autistic children. Reviews and critiques the literature on the usefulness of infant state parameters in predicting developmental outcomes of infants at…

This study tests the proposition that selective behaviors of both mother and infant during feeding are predictors of weight gain during the first month of life. Forty normal mother-neonate pairs were studied, and the target behaviors were examined using an adaptation of the techniques developed by Brown and Bakeman (in which approximately 60…

This book analyzes the MacArthur Longitudinal Twin Study, a collaborative study by leading developmental scientists and behavioral geneticists on the transition from infancy to early childhood. Part 1 of the book describes the twin method and procedures used and introduces the analytic strategies. Parts 2 through 4 present results related to…