Individuals track probabilities, such as associations between events in their environments, but less is known about the degree to which experience--within a learning session and over development--influences people's use of incoming probabilistic information to guide behavior in real time. In two experiments, children (4-11 years) and adults…

Lying is an interpersonal exercise that requires the intentional creation of a false belief in another's mind. As such, children's development of lie-telling is related to their increasing understanding of others and may reflect the acquisition of basic social skills. Although certain types of lies may support social relationships, other types of…

Fragmented sleep is common in infancy. Although night awakening is known to decrease with age, in some infants night awakening is more persistent and continues into older ages. However, the influence of fragmented sleep on development is poorly known. In the present study, the longitudinal relationship between fragmented sleep and psychomotor…

Evidence points to associations between the socioeconomic composition of neighborhoods and children's and adolescents' development. A minimal amount of research, however, examines how timing of exposure to neighborhood socioeconomic conditions matters. This study used longitudinal data from the NICHD Study of Early Child Care and Youth Development…

An assessment was made of 5- and 8-year-old children's performance on a short-term memory task under two auditory and two visual distraction conditions, as well as under a nondistraction condition. Performance under nondistraction was found to be superior to that under distraction (p<.001), indicating that the extraneous stimuli had a generally…

A study was conducted comparing young children's experiences in three types of day care--closed structure, open structure and family--with their experiences in home care supplemented by part-time nursery school. A total of 112 children, aged 2 to 5, were observed, each for 180-200 minutes. Eighty-four were selected from 15 day care centers, half…

The perceptions of students toward conservation and nature utilization and their behavior toward the environment were studied with 725 Danish adolescents and a previously studied group of Bavarian adolescents. Following construct validation, comparison of mean within-region factor values reveals substantial differences between countries. (SLD)

Eighteen cases of disintegrative psychosis (DP) were compared with 52 cases of infantile autism (IA) with speech loss and 145 IA cases without speech loss. DP cases showed clearer regression after more satisfactory development than the IA cases with speech loss, and by age seven were more severely retarded but similar in autistic symptomatology to…

Contrasts a child not ready for school with a child who is developmentally prepared to enter school and argues that if all school systems could administer and interpret the results of a developmental examination, the number of unhappy children, special needs children, and grade overplaced children would be greatly reduced. (HOD)

A three-year study found that children with learning disabilities displayed a persistent pattern of maladaptive classroom behavior that distinguished them from average achievers and was associated with continued underachievement, especially for attention and conduct problem subtypes. The developmental relationship between learning disabilities,…

Reviews the research comparing the social and behavioral characteristics of only children and children with siblings in China. Results are mixed, and many of the studies are seen as having methodological flaws. (BB)

Differences among day care environments and factors related to these differences are examined. Also, the probable effectiveness of group day care in meeting the developmental needs of children is discussed. Chapters I and II give the rationale and procedures of the study. Chapter III provides a description of patterns of teacher behavior and…

The article presents the results of a data analysis intended to examine the relationship between children's personality, maternal beliefs and childrearing behaviour and various disabilities on the one hand (mildly, moderate or severe mental handicap, sensorial handicap, developmental disabilities) and mothers' educational level on the other. Data…

The study compares the content retention by students who are self-paced with content retention by students whose pacing is modified by instructors. The subjects included 148 students enrolled in an introductory college level child development course. One group of 74 students was randomly assigned to a self-paced section and another group of 74…