Intelligence articles from November 1997

Intelligence archives from November 1997

Intelligence and regional brain volumes in normal controls.
November 1, 1997... The relationship between brain size and intelligence was examined in a large sample of healthy normal volunteers (N = 90). In addition to confirmation of the small but significant relationship between IQ and whole brain volume (r = 0.25, p [is...

Characteristics of 12th-grade students seriously deficient in spatial ability.
November 1, 1997... When spatial ability was regressed on a measure of general intelligence in a large national sample of 12th-graders, there was a distinct downturn in the regression line at about -2 SD units. A bimodal distribution of spatial ability was found...

Failure to replicate a QTL association between a DNA marker identified by EST00083 and IQ. (quantitative trait loci)
November 1, 1997... In a paper published in this journal, a possible QTL association "as reported between general cognitive ability and a marker, identified by an expressed sequence tag, EST00083 (Skuder et al., 1995). In two small samples, the frequency of the...

When will the milk spoil? Everyday induction in human intelligence.
November 1, 1997... We sought to understand (a) the mental processes underlying everyday predictive and postdictive judgments involving objects undergoing either change or no change of state over time and (b) the relation of these processes to intelligence, Forty...

An examination of genotype-environment interactions for academic achievement in an U.S. national longitudinal survey.
November 1, 1997... We examined whether genetic and environmental effects on academic achievement changed as a function of the quality of the children's environment. The study included a variety of observed environmental measures such as parental cognitive...