Intelligence articles from September 1999

Intelligence archives from September 1999

Theory Testing and Measurement Error.
September 1, 1999... In the physical sciences, measurement error has long been the focus of sustained attention and examination (Fuller, 1987; Hedges, 1987). The reason for this is simple: It is not possible to have accurate empirical tests of theories and...

Beleaguered Pygmalion: A History of the Controversy Over Claims That Teacher Expectancy Raises Intelligence.
September 1, 1999... Consider the implications of this remark, an almost identical version of which was repeated frequently thereafter, not only in subsequent publications but 95 pages later, and again 14 pages after that, with the quotation marks around "brighter"...

Preliminary Real-World Evidence That Average Human Intelligence Really Is Rising.
September 1, 1999... Average IQ score has been rising since the 1930's in many nations, the young scoring ever higher (Neisser, 1998). Some fine research by Flynn (1984, 1987) found that IQ tests need periodic renorming because most youngsters soon exceed the mean....

A Cousin Study of Associations between Family Demographic Characteristics and Children's Intellectual Ability.
September 1, 1999... Correlations between environmental measures and developmental outcomes in children are often interpreted as if these characteristics cause child behavior (Scarr, 1992; Rowe, 1994; Plomin, 1995, p. 2). That is, the environmental characteristic...