The present study examined the moderating effects of intellectual functioning and ASD symptom severity on the relation between age and adaptive functioning in 220 youth with autism spectrum disorder (ASD). Regression analysis indicated that intellectual functioning and ASD symptom severity moderated the relation between age and adaptive…

Numerous studies indicate that intrinsic motivation predicts academic achievement. However, relatively few have examined various subtypes of intrinsic motivation that predict overall achievement, such as motivation for exercise and physical activity. Based upon the 16 basic desires theory of personality, the current study examined the motives of…

Distributed brain areas support intellectual abilities in adults. How structural maturation of these areas in childhood enables development of intelligence is not established. Neuroimaging can be used to monitor brain development, but studies to date have typically considered single imaging modalities. To explore the impact of structural brain…

We examine (a) the normative course of eudaimonic well-being in emerging adulthood and (b) whether people's narratives of major life goals might prospectively predict eudaimonic growth 3 years later. We define eudaimonic growth as longitudinal increases in eudaimonic well-being, which we define as the combination of psychosocial maturity and…

Aims: Our aim was to examine intellectual development in children with congenital hemiplegia from early childhood to adolescence. Method: Full-scale IQ (FIQ), Verbal IQ (VIQ), and Performance IQ (PIQ) scores were measured in 32 participants (19 males, 13 females) with congenital hemiplegia at mean ages of 4 years 6 months (SD 7mo; 31…

Research examining the influence of collaborative learning experiences on students' intellectual development has been somewhat inconclusive and largely based on samples of white, traditional-aged college students. Using data from the College Student Experiences Questionnaire (Pace, 1990), the author examines this relationship for a random sample…

Explores the nature and consequences of developmental change in speed of information processing. Summarizes evidence indicating that age differences in processing speed reflect a global mechanism that limits processing speed on most tasks. Describes evidence that suggests a role for processing speed on the development of intelligence. (Author/MKA)

A recognition memory experiment with 8-, 11- and 20-year-olds investigated the hypothesis that, with age, semantic encoding becomes increasingly important relative to acoustic encoding. (CM)

This study examines development along Perry's intellectual and ethical scale among three successive graduating classes of students identified as gifted and talented in mathematics and science. Perry posits that intellectual development proceeds from a basic dualism through nine stages ("positions") and culminates with a sense of personal identify…

Critiques Rodgers et al.'s June 2000 research on the relation between birth order and intelligence, which suggests that it is a methodological illusion. Explains how the intellectual environment and the teaching function (whereby older children tutor younger ones) contribute to the growth of intellectual maturity, the first negatively and the…

Investigated beliefs about intellectual control and aging in 86 middle-aged and older adults. Perceptions of internal control over intellectual functioning appeared to be relatively stable during middle adulthood and to decline for older adults. Even with effects of education partialled, there was a decline in perceptions of intellectual…

Miscue analysis patterns of second, fourth, and sixth grade students of high and low reading ability show that miscues acceptable in context increase by grade level and ability. (CJ)

The relationship between higher order reasoning and sex bias was investigated among children 7, 9 and 11 years old. Children read arguments enhancing their own or other gender, then rated argument intelligence, judged other children based on observations, and justified their arguments. Findings showed that own-gender reasoning biases declined with…

The article reviews the literature on two questions: what is the normal course of creative development, and do peak periods exist during which people are most open to efforts to foster creative abilities. Six specific periods are identified as peak periods of creative growth. (DB)

Using a sample of 158 low-income black women and their infants, this study examined the relation between mother's age and measures of maternal behavior reflecting verbal responsivity, punitiveness, and instrumental support for intellectual development. (Author/NH)