We investigated time-related patterns in levels of cognitive performance during the period from 1970 to 1993 based on data from Swedish draft boards. The conscripts, including more than a million 18-19-year old men, had taken one of two versions of the Swedish enlistment battery (SEB67; 1970-1979 or SEB80; 1980-1993), each composed of four…

This study focused on the attainment of Theory of Mind (ToM) in children (aged 6 to 13) with complex communication needs who used augmentative and alternative communication (AAC). The AAC group (n = 14) was matched to a younger group, without disabilities, vis-a-vis nonverbal mental age. A second comparison group consisting of children with mild…

The Matthew effect is often used as a metaphor to describe a widening gap between good and poor readers over time. In this study we examined the development of individual differences in reading and cognitive functioning in children with reading difficulties and normal readers from Grades 1 to 3. Matthew effects were observed for individual…

A group of 119 children in Sweden were followed from infancy to age 8 to determine the relationship between type of child care children received and their later development. At the age of 8, children were given aptitude tests and were rated by teachers on school performance and social and personal development. A number of background variables were…

Investigated effects of program auspice (nonprofit versus profit child care), adult-to-child ratios, and class age span on teaching and on preschoolers' social and cognitive development. Found that age, gender, social background, and age span were significant predictors of children's social and cognitive development; adult-to-child ratio and…

Parental leave is a complex area of public policy. Concerns include health protection for working mothers, equal employment opportunities for women, access to adequate antenatal and birthing care, maternal recovery, optimal nutrition for infants, and gender equality within families. Given this complexity, the design of parental leave schemes,…

Data were collected on the type of day care experienced by 119 Swedish children who were followed from their first year of life to age 8. Types of day care included: (1) center care continuing from the first or second year; (2) center care begun at a later age; (3) mixed care, or, transition from family day care to center care; (4) day mother…

Data were collected between 1965 and 1971 concerning the physical status and school achievement of a nationally representative sample of Swedish pupils comprised of 360 girls and 380 boys. Pupils were followed from grade 3 through grade 9 of compulsory school. For boys, similar data were collected in connection with military enrollment. Main…

Several studies were conducted to investigate the nature and development of creative social problem solving among older and younger children in Sweden and the United States. First, the behaviors of older children were investigated formally in a large-scale experimental study of California 10-year-olds. Results indicated that children receiving…