Lynn (2010) suggests that differences in average intelligence explain many of the differences observed across the Italian regions. This paper puts forward a methodological critique to his study, coupling it with an empirical test showing that Lynn's analysis is not sufficiently robust to support its conclusions. (Contains 2 tables.)

Beraldo (2010) and Cornoldi, Belacchi, Giofre, Martini, and Tressoldi (2010) (CBGMT) have eight criticisms of my paper (Lynn, 2010) claiming that the large north-south differences in per capita income in Italy are attributable to differences in the average levels of intelligence in the populations. CBGMT give results for seven data sets for IQs in…

Working with data from the PISA study (OECD, 2007), Lynn (2010) has argued that individuals from South Italy average an IQ approximately 10 points lower than individuals from North Italy, and has gone on to put forward a series of conclusions on the relationship between average IQ, latitude, average stature, income, etc. The present paper…

The entire thesis of "The Bell Curve" disintegrates due to biased use of data, misrepresentations, and logical inconsistencies. Five basic flaws are: inferring causality from correlation, use of dubious racial categories, contradictory arguments concerning the immutability of cognitive ability and the relative contributions of heredity…

"The Bell Curve" declares that studies of separated identical twins--the "purest" of "direct" methods for estimating IQ heritability--indicate a value of +.75-+.80. But, the main study cited suggests a heritability of "two-thirds" for the middle class, and Herrnstein and Murray neglect to mention numerous…

Focuses on the strategy of using the science of genetics to pepetuate the racism of the dominant society, proposing that arguments presented by the "liberal" proponents of special programs in abandoning the goals of the 1960s were used to rationalize the reopening of the latent question of genetic black inferiority. (Author/JM)

This article reviews sex studies of children of cousin marriages and three studies of children of incestuous matings. It is argued that these studies, taken as a whole, provide no substantial evidence for an inbreeding depression effect within the polygenic system commonly asserted to determine IQ. (Author/DB)

Suggests that a careful review of the logical and empirical bases for the myth argument indicates that there is little to justify it. The evidence suggests that if one lives long enough, decrements in at least some of the important abilities of intelligence is likely to occur. (Author/AM)

Critically examines the portions of Arthur Jensen's books that concern Barbara Burks' 1928 study of adoptive families. Findings are that Burks' sample was highly selective, that her environmental measures were limited, and that Jensen has misrepresented the content and implications of her study. It is also shown that Jensen's estimates of…

Reviews the 1989 report, "A Common Destiny: Blacks and American Society," which examines the anticipated and unanticipated consequences of initiatives since 1940 to improve the Blacks' social position. Criticizes the report for omitting evidence concerning racial differences in intelligence and criminal activity at the individual level. (FMW)

Argues that the philosophical context noted in Haynes's "How Skewed Is 'The Bell Curve,'" is incomplete; that the Constitution does not treat blacks the same as whites; and that not enough cultural and social context was addressed. The authors characterize the "The Bell Curve" as a wrecking ball for dismantling social programs…

Agrees with Haynes' assessment of "The Bell Curve" as scientifically flawed research with adverse political implications and as pseudoscientifically representing racism. The author criticizes Haynes for not fully illuminating the dangerous implications (now occurring) for the well-being of blacks today and into the next century. (GR)

Trotman (EJ 168 902) indicated that Black and White families of similar socioeconomic status differ widely in intellectual home environment, and suggested the nonutility of socioeconomic status as a control in racial comparisons of IQ. The validity of Trotman's conclusions is questioned, both for methodology and results. (Author/BH)

Briefly reviews the content and impact of Arthur R. Jensen's 1969 Harvard Educational Review (HER) article How Much Can We Boost IQ and Scholastic Achievement, noting that "the reaction stirred by this article" in the subsequent issues of HER "was sharp." Among the critics were J. M. V. Hunt, Jerome Kagan, David Elkind, while Carl Bereiter, James…

Charles Spearman originally suggested in 1927 that the varying magnitudes of the mean differences between whites and blacks in standardized scores on a variety of mental tests are directly related to the size of the tests' loadings on g, the general factor common to all complex tests of mental ability. Several independent large-scale studies…