The modern education is dominantly targeted at the left hemisphere. It draws insufficient attention to the harmonization of the functioning of both brain hemispheres. This has a negative impact on the development of the abilities of children and is especially detrimental to boys and those children who are brought up in the natural environment. In…

Evidence from twin studies points to substantial environmental influences on intelligence, but the specifics of this influence are unclear. This study examined one developmental process that potentially causes intelligence differences: learning to read. In 1,890 twin pairs tested at 7, 9, 10, 12, and 16 years, a cross-lagged…

That students' social and economic characteristics shape their cognitive and behavioral outcomes is well established, yet policymakers typically resist accepting that non-school disadvantages necessarily depress outcomes. Rather, they look to better schools and teachers to close achievement gaps, and consistently come up short. This report…

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…

This paper was presented at the Biennial Meeting of the Society for Research in Child Development, Santa Monica, California, March 25-29, 1969. (DR)

This longitudinal study of children's drawings is designed to indicate important aspects of the socialization process through analysis of changes in children's drawings. The Draw-A-Classroom (DAC) Test was administered to 100 students between 1961 and 1966. Data was available from a total of eight test administrations, given in the period between…

Reports a new body of longitudinal research concerning the role of malnutrition in retarded intellectual development. (JM)

Reexamines Yoruba children from educated and traditional families after five years, finding that those growing up in a privileged environment showed increasingly superior mental scores. (Author/JM)

Analysis of 65 children over a 4-year period on tests of operational and causal thinking offers support for Piaget's notion of stage progression. In kindergarten and grade one, the majority of children in this longitudinal study were between preoperational and the achievement stage of operational thought. By grade two, the majority had attained…

Longitudinal studies to clarify and validate objectives and standards of preschool education are advocated. Until the result of such research is available, studies of methods and processes have little practical or theoretical use. Preschool goals generally agreed upon by American educators are the promotion of the child's emotional and social…

TWO STUDIES DEAL WITH THE THOUGHT PROCESSES CHILDREN DISPLAY WHEN FACED WITH PROBLEMS INVOLVING THE CONCEPTS OF QUANTITY AND NUMBER. INVOLVING CHILDREN IN KINDERGARTEN, FIRST GRADE AND SECOND GRADE, THE STUDIES USE PIAGET'S THEORIES IN BOTH A CROSS-SECTIONAL AND A LONGITUDINAL APPROACH TO STUDY CHILDREN'S THINKING IN AN EDUCATIONAL SETTING. TO…

THE EXTENT TO WHICH SCORES REPRESENTING PUPILS' STATUS ON CERTAIN DEVELOPMENTAL FACTORS PREDICTED THEIR ACHIEVEMENT IN READING, ARITHMETIC, AND THE MEDIAN OF A BATTERY OF ACHIEVEMENT TESTS WAS PRESENTED. THE STUDY COVERED A PERIOD OF 4 YEARS DURING WHICH THE SAME PUPILS WERE STUDIED IN THE THIRD, FOURTH, FIFTH, AND SIXTH GRADES. STUDIES OF THESE…

In a study of ways of preventing mental retardation in the population of a city slum, surveys were conducted. The major finding was that the variable of maternal intelligence was the best single predictor of the level and character of intellectual development in the offspring. The survey also showed that the lower the maternal IQ, the greater the…

A four-and-a-half-year longitudinal experiment reconsidered the contribution of organic impairment to the genesis of mild mental retardation among disadvantaged children. It was hypothesized that nonoptimal perinatal conditions might result in deficits that increase a child's vulnerability to environmental risk factors. Study results supported the…

Reviews the social-psychological research pertaining to female-headed families published between 1970-1980. Literature indicates that theoretically children do not need the presence of the same-sex/opposite-sex parents in the family to develop sex-role behavior. Suggests children in female-headed families are likely to have good emotional…