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…

In the investigation described here, the relationship between individual differences of intelligence, as measured by the Wechsler Adult Intelligence Scale (WAIS; Wechsler, 1958), and inspection time has been examined. (Author)

A critique arguing: (1) that the assumptions underlying the use of intelligence tests are invalid; (2) that findings regarding individual differences can not be generalized to differences between populations; and, (3) that the studies cited as evidence were both incorrectly designed and improperly executed. (JM)

Quantitative racism is defined as the intentional or unintentional misuse of statistical and quantitative methods to show some kind or type of ethnic superiority, usually with respect to black-white differences. This essay identifies some fallacious applications of statistical methods common to a number of recent studies in the behavioral…

This research studied the interchangeability of individually administered and group administered cognitive tests. Seventy undergraduate students took the Hebrew version of the WAIS-R (Wechsler Adult Intelligence Scale-Revised), and their IQs were measured. They also took the IPET (Israeli Psychometric Entrance Test) and their IPET scores were…

Changing ideas on intelligence testing and the heritability of intelligence are followed through a fifty-year period. Common criticisms of intelligence tests are examined, but it is concluded that intellectual tests will continue to be of value in diagnosing strengths and weaknesses, particularly of exceptional children. (Editor)

This issue of the IRCD Bulletin is devoted to commentaries on an article by Arthur R. Jensen on the nature-nurture controversy in a recent number of "Harvard Educational Review." Contents of the Bulletin are comprised of the following: "Education, Ethnicity, Genetics and Intelligence; Jensenism: Another Excuse for Failure to…

This book on the genetic and environmental influences on intelligence is comprised of the following papers: "The Structure of Intelligence in Relation to the Nature-Nurture Controversy," R. B. Cattell; "Theory of Intelligence," L. G. Humphreys; "Using Measured Intelligence Intelligently," P. R. Merrifield; "Intelligence: Definition, Theory, and…

This document comprises three presentations made on March 23 at a symposium sponsored by the Southern Regional Council focusing on Human Intelligence, Social Science and Social Policy. The first of the three parts of the document is the text of the principal presentation, made by Dr. Leon Kamin, Chariman of the Department of Psychology at…

This paper focuses on the use of the variable race in educational research. Researchers are clearly considered to have the right to choose their variables. But, the use of race in a nonscholarly fashion is held to be professionally inadequate and often detrimental to black Americans. For years, researchers using race to make comparison s between…