This essay provides an overview of the controversies surrounding intelligence: its definition, its genetic or environmental basis, its relationship to achievement and learning ability, cultural factors, and the use of intelligence tests in the schools. This article is part of a theme issue on intelligence. (SJL)

A model-fitting analysis of the covariance structure of an intelligence quotient (IQ) data set is reported using a model that considers additive and nonadditive genetic parameters and shared and nonshared environment parameters that permit different estimates for different types of relatives. The use of LISREL for such purposes is reviewed. (SLD)

"The Bell Curve" by Richard J. Herrnstein and Charles A. Murray has ignited a fierce academic debate. They assert that IQ as measured by tests has replaced family wealth and status in determining jobs, income, class, and place in American life; that whites average 15 IQ points higher than blacks; and that high-IQ ruling elites, with…

Noting that many of the attacks on individual scientists as well as some of the attacks on the field of behavior genetics are more than intemperate--they are non-rational--the author discusses his experience as a signatory to a document drawn up by Ellis B. Page during the winter of 1971-1972. The intent of this controversial document was to…

The relevance of intelligence testing for schools within one district, the Sacramento (California) school district and the state of California is explored, and applications of intelligence theory in district schools and classrooms are discussed. Intelligence, for purposes of this discussion, is the aggregate capacity of each student's…

The strongest recent statement that inequality in America is the natural result of a free market came in "The Bell Curve: Intelligence and Class Structure in American Life" by Richard Herrnstein and Charles Murray. These authors argued that intelligence determines how well people do in life, and the rich are rich largely because they are…

"The Bell Curve" by Richard Herrnstein and Charles E. Murray has created a great deal of controversy because of its assertion that the key to explaining inequality and social problems in the United States is stratification by a unitary entity called intelligence, or cognitive ability, as measured by the intelligence quotient (IQ). Their…

Several common assumptions about human intelligence are challenged in this paper. The "bucket" theory of intelligence describes intelligence as a stable psychological characteristic which affects learning, and which, when accurately measured, predicts an individual's learning capacity. The authors reject the idea that people who have…

Pseudoscience, or the process of persuasion by establishing a pretense of scientific discovery, is examined in this book in an effort to dispel false notions about the validity of various measures of intelligence and the correlations of genetics to mental ability. The history and development of concepts related to hereditary intelligence and…

Once again intelligence tests are being used as the major basis to establish the genetically determined limitations of minority and economically disadvantaged groups. By reviewing the arguments regarding the I.Q. test and the hereditability of intelligence, the author compares these with two sets of phenomena: the I.Q. test scores and the…

In his book, "I.Q. in the Meritocracy," Richard J. Herrnstein (1973) calls on a classic article by Barbara S. Burks (1928) to support his position that a large part of the variation in intelligence can be accounted for by variation in heredity, as distinguished from variation in environment, and from covariation of heredity and…

The controversy over intelligence testing is more often influenced by political considerations than empirical research. A survey of 1,020 experts found that a majority agree that (1) intelligence can be defined; (2) heredity plays a role in individual and group IQ differences; and (3) intelligence testing in schools should continue at its present…

It is asserted that intelligence testing is part of a national educational ideology which is used to rationalize Chicanos' educational inequalities. This rationale suggests that inequality is the result of the group's inability to function competently within the American social and educational structures. (MH)

Theories explaining differences in IQ performances between races in terms of (a) genetics and (b) the role of the environment are both criticized. It is argued that the Cultural Distance Approach, which stresses the role of a subculture's distance from the major culture on which IQ questions are based, has the greatest explanatory power. (RDN)

Reviews criticism of Dunn's monograph on Hispanic-Anglo differences in IQ scores. Discusses the heritability and malleability of IQ, the reciprocal relationship between achievement and intelligence, negative effects of schooling for some caste-like minorities, and superior cognitive skills among balanced bilingual students. Contains 19 references.…