This study explores how teacher quality matters in improving early childhood performance in US kindergartens. We find that it is what teachers do rather than the credentials they hold that matters. Different from previous research on the effect of teacher quality on student achievement, this paper first rejected the common practice of using…

The United States has been swept up in the "Harry Potter" phenomenon, with film adaptations, companion readers, and literary critique and analysis following J. K. Rowling's books on the adolescent wizard's adventures. The book has also touched off a reaction from conservative Christian institutions seeking to ban the books in school…

This study used a community-wide survey of adolescents to compare adolescent perceptions of parental support, knowledge, and authoritative decision making in samples of Hmong and European Americans. Additional analyses considered variation in parental influence on adolescent outcomes across these groups. The results suggested that Hmong American…

The purpose of this study was to explore the interrelationship of social and adaptive skills in adults with bipolar disorder and severe or profound intellectual disability. A bipolar group (N=14), a severe psychopathology group without bipolar disorder (N=14), and a control group with no DSM-IV Axis I diagnosis (N=14) were compared on the…

A motor task that requires fine control of upper limb movements and a cognitive task that requires executive processing--first performing them separately and then concurrently--was performed by 18 young and 18 older adults. The motor task required participants to tap alternatively on two targets, the sizes of which varied systematically. The…

The current study elucidated the reasons for athletic performance differences between individuals who (1) engage in similar workloads, and (2) develop in similar environments. 8 elite and 11 sub-elite swimmers, with confirming data provided by 17 of their parents and 6 of their coaches, participated in this investigation. Findings revealed that…

The paper describes a national survey of biology teachers visiting Field Studies Council (FSC) centres in England and Wales. It provides data on levels of biology fieldwork at ages 11-16 (Years 7-11), and factors affecting A-level biology fieldwork provision at ages 16-19 (Years 12 and 13). The results are compared with similar data from geography…

Based on Bronfenbrenner's (1999) ecological perspective, a longitudinal, prospective model of individual differences in the quality of home environment (Home Observation for Measurement of the Environment--HOME) was tested in a sample of 179 Brazilian children and their families. Perinatal measures of family socioeconomic status (SES) and child…

Aims: To compare siblings of children with autism (SIBS-A) and siblings of children with typical development (SIBS-TD) at 4 and 14 months of age. Methods: At 4 months, mother-infant interactional synchrony during free play, infant gaze and affect during the still-face paradigm, and infant responsiveness to a name-calling paradigm were examined (n…

Background: Findings are presented of the second phase of a longitudinal study of families created through surrogacy. Methods: At the time of the child's 2nd birthday, 37 surrogacy families were compared with 48 egg donation families and 68 natural conception families on standardised interview and questionnaire measures of the psychological…

Objective: The aim of this follow-up study was to investigate the course of performance in attentional tasks in children with ADHD and normal controls in late childhood and preadolescence over short periods of time. The development of two dimensions of attention was compared: alertness/arousal and inhibitory control. Method: Children with ADHD (N…

Background: This study extends previous research (Dixon, Browne, & Hamilton-Giachritsis, 2004) by exploring the mediational properties of parenting styles and their relation to risk factors in the intergenerational cycle of child maltreatment. Families with newborns where at least one of the parents was physically and/or sexually abused as a child…

Background: Deficits in executive functioning are supposed to have a predisposing influence on impulsive or aggressive behaviour. We tested the hypothesis that oppositional-defiant disorder (ODD) children with or without attention deficit hyperactivity disorder (ADHD) have problems in executive functioning. Method: Seventy-seven 7- to 12-year-old…

The goal of this study was to compare HIV risk behaviors of amphetamine and non-amphetamine injectors at syringe exchange programs (SEP) in the United States and to identify factors associated with injection risk. This analysis is based on data from a random cross-section of participants at 13 SEPs in different parts of the country. All interviews…

How does one become an effective teacher? What can be done to stem high attrition rates among beginning teachers? While many teachers are left to "sink or swim" in their first year--learning by trial and error, there remain a number of outstanding examples of collaboration and collegiality in teacher induction programs. Analysis of the…