The use of sleep scheduling and a daytime routine for the treatment of circadian rhythm disorder was found helpful in decreasing a blind 2-year old's nighttime wake periods and daytime sleepiness. (DB)

Two-day-old chicks were found to prefer an ancestral maternal call over a brief repetitive pure tone burst when stationary models emitted the calls; however, other chicks prefered the repetitive tone over the maternal call when the models emitting the calls were moving. (JMB)

The paper examines the nature of abnormal stereotyped behavior, favoring a self-stimulation theory over one emphasizing an intrinsic oscillator mechanism. Questions of prevention are noted. (Author/CL)

This article describes an attempt to determine which of a number of sociological, family background, and personality variables would discriminate between recidivists and nonrecidivists in a population of formerly institutionalized juvenile offenders. (Author)

Three experiments tested whether 12- to 24-month-old children showed systematic search, persistence, and/or end-screen search in the invisible-displacement task. A fourth study tested whether end-screen search resulted from seeing the experimenter move his hand through the series of screens. (RH)

Gottlieb's (1991/2007) target article represents a milestone in our understanding of the impact of social experience on developmental malleability. Interactions across the species-typical and operant behavior categories are increasingly understood to exist. The social contingencies present in the normal species-typical developmental manifold are…

Background: To assess the co-occurrence in deviant trajectories of parent-rated symptoms of conduct disorder (CD), oppositional defiant disorder (ODD) and attention-deficit/hyperactivity disorder (ADHD) from age 4 to 18 years old in a general population sample of Dutch children. Methods: Developmental trajectories of CD, ODD, and ADHD were…

This study used data from the National Institute of Child Health and Human Development's Study of Early Child Care and Youth Development to examine relations between parenting, self-control, and externalizing behavior from infancy through 5th grade. Results indicate that self-control measured during middle childhood mediates relations between…

Background: Some young children reared in profoundly depriving institutions have been found to show autistic-like patterns, but the developmental significance of these features is unknown. Methods: A randomly selected, age-stratified, sample of 144 children who had experienced an institutional upbringing in Romania and who were adopted by UK…

Background: This study assessed whether data-collection formats, computerized versus paper-and-pencil, affect response patterns and descriptive statistics for adolescent health assessment surveys. Youth were assessed as part of a health risk reduction program. Methods: Baseline data from 1131 youth were analyzed. Participants completed the…

Understanding why children do not behave the way they used to, and why both controlling and overly-permissive discipline styles are ineffective, is the first step for parents and teachers who are facing child-discipline problems. This book describes a program of positive discipline principles aimed at assisting parents and teachers in…