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…

Information flows continuously in the environment. As we attempt to do something, our senses receive large volumes of information. In any conversation, messages are exchanged rapidly. To understand meaning, we have to focus, record, choose and process relevant information at every moment, before it is displaced by other information. Often,…

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…

Children in grades 1, 3, and 5 were asked to decide whether selected contradictory sentences were true or false. The age at which children were first able to evaluate the false sentences correctly corresponded to the relative speed with which adults evaluated the sentences in a timed vertification task. (Author/JMB)

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…

The Snijders-Oomen Nonverbal Intelligence Test (SON) was administered to 251 deaf children (6-15 years old) and 101 hearing children (10-12 years old) in Israel. The SON was judged appropriate for measuring cognitive functioning in the deaf because it requires no verbal instructions or responses and includes a measure of abstract thinking ability.…

This study investigates age differences in children's semantic expectations regarding causal relations in stories about three realistic goal situations (being friendly, getting a dog, and doing chores). Twenty children at each of three age levels (ages 6, 9, and 12) were asked to produce stories and answer probe questions about wanting and not…

Administration of a placement task to 66 preschool and grade school children revealed that the concept of higher/lower was understood earlier than above/below, which in turn was understood earlier than rising/falling. Within each pair of terms, the one referring to upness was comprehended earlier. (Author/JMB)

Tested the comprehension of 3- and 4-year-old children with probable and improbable sentences in active and passive voice in order to evaluate the importance of semantic support for comprehension of passive sentences. (Author/SDH)