Four experiments tested three to six year olds' and adults' understanding of animals' growth changes. All subjects understood that animals get larger with age. Older children and adults, but not younger children, allowed for dramatic changes in the size and shape of animals over the animals' lifespans. (BC)

Before 12 months of age, infants have difficulties coordinating and sequencing their movements to retrieve an object concealed in a box. This study examined (a) whether young infants can discover effective retrieval solutions and consolidate movement coordination earlier if exposed regularly to such a task and (b) whether different environments,…

One of a series intended for parents and other caregivers, this handbook on child development focuses on the first 2 years of life. Contents include discussions on (1) basic developmental principles; (2) physical development; (3) cognitive development and language acquisition; (4) personality development, temperament, attachment, and bonding; (5)…

This study investigated (1) the nutritional status of urban American disadvantaged children, (2) the relationship of nutritional status to mental growth and development, (3) the relationship of physical maturation to the development of perceptual-motor factors of intelligence, and (4) if found, the effects of undernutrition on intellectual…

Children of 200 low-income families were studied to determine possible deleterious outcomes due to maternal employment in the child's first 3 years of life. When 8-year follow-up data were controlled for maternal variables, 30 differences in outcomes were found, 27 of which favored children of workers. (Author/JMB)

Recent studies on the biological development of the prefrontal cortex in rhesus monkeys are reviewed. These studies have elucidated the basic neural circuitry underlying the delayed-response function in adult nonhuman primates and suggest that a critical mass of cortical synapses is important for the emergence of this cognitive function. (BN)

A study was made of 379 inservice and preservice teachers to identify the objectives they sought to attain in their physical education classes. Results are presented, and differences between preservice and inservice teachers are discussed. (MT)

Designed for use in in the home and in professional child-care settings, this program presents developmentally appropriate activities to support development of infants from 1 to 2 years of age. Each of the six 2-month long units contains 24 sets of activities call Activity Plans, with the suggestion to use three activity plans per week. Each unit…

This study investigated the relationship of physical manifestations of sex hormone influence to cognitive functioning in a longitudinal sample of 106 adolescent males and 99 females (ages 13, 16, and 18 years). Analyses of the 35 males and 40 females who had all cognitive and physical data at all three ages are reported here. (Author/SB)

This report provides a developmental perspective on what competencies young people need to be ready for college, the workplace, and the transition to adulthood. National hand-wringing about the lack of preparedness of high school graduates for college and the workplace has catalyzed researchers, educators, and policymakers to define the skills and…

One of a series written for parents and other caregivers, this handbook on child development focuses on children from 2 to 6 years of age. Contents describe (1) physical development in terms of body size and shape, brain and eyes, and motor skills; (2) cognitive development and language acquisition; (3) personality development, with particular…

From a longitudinal sample of 202 children studied from birth to 8 years of age, two extreme groups were selected. One group had a more rapid development than normal and the other a slower development. A relationship between the development of abilities and weight and height increases was found for boys aged 4 weeks to 2 years and between the…

The purpose of this paper is to present some evidence linking malnutrition to physical development, brain development, infection, environment, learning and behavior. (CS)

There are numerous and complex events taking place during brain maturation that provide the biologic underpinnings of learning and behavior. (MM)