The main argument of this article is that human living systems are open, dynamic, intentional systems and, therefore, are capable of building ever more complex behaviors through self-organization and self-direction. This principle underlying general human development is also applicable to the development of gifted and talented behaviors. These…

Sir Francis Galton's (1869/1892) notion of nature versus nurture is a cornerstone of psychology: It was recently featured in two issues of the Monitor (March and April 2004) and was infused throughout the January 2005 issue of the American Psychologist. R. L. Sternberg, E. L. Grigorenko, and K. K. Kidd offered keen insights into the pitfalls in…

Product-moment correlations between Stanford-Binet IQs of 151 women and the Gesell Developmental Quotients of their illegitimate children were significant when the children were approximately 2 months old and residing in institutions. After the children were adopted, the correlations dropped at first but then increased in the final tests given at…

Discusses the patterns of mental development of 350 pairs of twins studied longitudinally from 11/2-6 years of age. (DP)

Studies by the late English psychologist Cyril Burt of IQ scores of separated twins strongly suggested that intelligence was inherited. A summary of recent research costs doubt upon the validity of Burt's work. (SL)

Presents arguments for the case that Burt did fake his results. (IRT)

Argues that Burt did not fake his results. (IRT)

Hierarchical factor analyses involving Schmid-Leiman transformations were conducted on specific cognitive abilities data collected from 148 identical and 135 fraternal twin pairs from the Western Reserve Twin Project. Model fitting results reflect genetic influences on specific abilities and suggest that environmental influences are less…

Data from a previous adoption study using the Wechsler Intelligence Scale for Children-Revised show that the genetic effect is reflected by psychometric "g" (general intelligence) to a greater degree than is the environmental effect. This finding is consistent with the hypothesis that "g" largely reflects the genetic component…

Taylor (1980) claims to show that the similarity in IQ between monozygotic twins reared apart found in prior studies is due to similarity in their environments. A reanalysis using Taylor's classification of environments but an alternative IQ measure shows that his findings do not constructively replicate. (Author/RD)

Article gives a brief history of intelligence testing and enters a plea for a better use of testing to meet the individual needs of students. (GB)

A critical review of Jensen's book which contains a reprint of the original controversial 1969 "Harvard Educational Review" article, 5 related articles by Jensen, and a bibliography of related articles. (EH)

Four basic assumptions of IQ tests - age constancy, scholastic validity, standard environment and performance suggiciency are alien to Piaget's theory. Heredity cannot be statistically separated from environment; therefore, Piagetian theory would suggest the nature-nurture controversy is devoid of meaning. (ST)

Discusses work by Arthur Jensen in addition to his well-known work on the genetics of intelligence. Includes studies of learning, memory, the cumulative-deficit hypothesis, Spearman's hypothesis, and the speed of information processing. (SLD)

The principal author of Inequality: A Reassessment of the Effects of Family and Schooling in America (1972) comments on three reviews of the book. For related articles see TM 501 196-199. (MLP)