With over half the nation's infants and toddlers in regular, non-parental child care, the quality of that care is a priority concern for policymakers. Many studies show that high-quality child care supports the positive social, emotional, and cognitive development of young children. The research summarized in this policy brief identifies factors…

Presents the results of a field study done on 7 wells providing 37% of the total aquifer production for 4 municipalities in Puerto Rico. Each sampled well showed signs of contamination by heavy metals, nitrate, and semivolatile organic compounds. Although found in low concentrations, current development threatens groundwater quality. (MJP)

Identifies relative deprivation as a subjective feeling of discontent based on a belief that one is getting less than one feels entitled to. Investigates the relationship between relative deprivation, ethnic identification, and racial attitudes in South Africa. Discusses the connections between these beliefs and recent sociopolitical changes. (MJP)

Defines inappropriate challenges as behaviors suggesting incompetence based solely on certain professor's social characteristics, especially gender and race. Discusses recent research on this problem concerning challenges from students, colleagues, and administrators. Lists suggested coping strategies, including changing the climate on campus and…

This article is concerned with the learning of mathematics before the commencement of formal schooling. Describes the experiences of two students from four main sets of data: formal and informal measures of mathematics achievement, the learning environment in the home, and observations during teacher-led sessions concerned with mathematical…

The purpose of this study was to investigate the alternative forms of young children's help-seeking in free play and problem-solving contexts. A total of 72 children aged 18 (N=36) and 24 (N=36) months were observed in pairs in free play and problem-solving settings, as well as in different social contexts--same-age versus mixed-age pairing. Both…

The findings from a study of 42 administrators in a large metropolitan school district supported the hypothesis that the use of privacy regulation mechanisms is deliberate and dynamic. The researchers considered the age and sex of the administrators, the length of time they'd held their current jobs, their tendencies toward Type A or Type B…

Reviews Greenough, Black, and Wallace's (1987) conceptual framework for understanding the effects of early experience and sensitive periods on development, and illustrates the applicability of their model with recent data on the consequences for animals and human infants of the acquistion of self-produced locomotion. (BN)

Tested the generalizability of the specificity model of environmental action to the domain of mastery motivation in infants. Found that the specificity model successfully predicted that aspects of the environment uniquely related to dimensions of mastery motivation, and that infant sex and temperament mediated the relation of environment to…

The study assessed the effects of redesigning the classroom physical environment to minimize stimulation on the occurrence of self-stimulation, on-task behavior, inappropriate behavior, and inactivity with 3 autistic males (16, 16, and 26 years old). Self-stimulation and inactivity decreased and on-task behavior increased. (Author/DB)

Discusses teenage pregnancy, parenthood, and intervention programs in Canada. Focuses on the issues facing young women from severely disorganized backgrounds whose children are at-risk for developmental delay, emotional disturbance, maltreatment, and neglect. (RJC)

Data indicated that children with mentally retarded siblings appeared to take on more household and sibling caregiving responsibilities, reported somewhat more negative experiences with their mothers, and exhibited poorer adjustment than did children without mentally retarded siblings. (RH)

Discusses a study of the effects of music listening upon student achievement. Reports that seventh grade students listened to music while independently studying the earth-sun relationship. Concludes that there were no significant achievement differences among students who learned while listening to rock, classical, easy listening, or no music. (SG)

This study found no significant difference in the prevalence of hepatitis B surface antigens or antibodies between 180 noninstitutionalized subjects (ages 1-29) with Down's syndrome and 155 subjects without Down's syndrome. This finding contrasts with previous findings with institutionalized Down's syndrome subjects. (Author/DB)

This narrative study examined teachers' perceptions of their inclusive classrooms. Eight early childhood teachers responded to open-ended interview questions about their experiences teaching children with and without disabilities in the same classroom environment. The social constructivist view of teaching and learning is highlighted as the…