Responds to Dunn's paper on Hispanic-Anglo differences in IQ scores. Argues that vocabulary use influences ethnic group IQ scores, that mainland Hispanic-American vocabulary scores decline after school entrance, and that native language proficiency achieved in a true bilingual program facilitates acquisition of English language skills. Contains 34…

Responds to Dunn's monograph on Hispanic-Anglo differences in IQ scores. Discusses the cultural/linguistic bias in IQ tests, and the inevitability of this bias due to methods of test development and standardization. Criticizes Dunn's proposal for English immersion programs to replace bilingual education. Contains 21 references. (Author/SV)

Composite reading performance data from 223 pairs of identical twins and 169 same-gender fraternal twins in which at least one member was classified with reading disability were subjected to multiple regression analysis. Results indicated that the genetic etiology of reading disability differs as a linear function of IQ. (Contains extensive…

The research described in this article addressed the question of why siblings commonly have different developmental outcomes despite their common beginnings. The studies analyzed behavioral development, especially through examination of deviant behaviors and intellectual development, by tracing siblings' different life histories. The work is based…

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…

Much research shows that the correlation between IQ and school performance is consistently high. However, some evidence indicates that this relationship is not consistent but is moderated by classroom psycho-social environment at the first-grade level. Data from IQ tests, the Devereux Elementary School Behavior Rating Scale, number of attendance…

This paper repudiates Jensen's hypothesis that differences in IQ scores and scholastic achievement in Negro and white children are genetically based. Specifically, Jensen's identification of IQ scores as a measure of abstract reasoning and problem solving and of levels of ability, and his evaluation of the magnitude of the genetic component in IQ…

Contents of this compilation of testimony include: (1) statements by L. L. Cavalli-Sforza, professor of genetics, Stanford University; Richard A. Goldsby; Irving I. Gottesman, professor of psychology, University of Minnesota; Arthur R. Jensen; and Jane R. Mercer, associate professor of sociology, University of California, Riverside; (2) such…

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…

Infants judged to be at risk for subnormal intellectual growth were randomly assigned to experimental and control groups which varied as to educational curriculum activities. Two types of evidence, group differences and parent-child IQ correlations, demonstrate the importance of early environments in intellectual development. (Author/RD)

In response to reviewer criticisms, reiterates that the Hispanic community must share the blame for low Hispanic IQ scores and become involved in educational strategy development. Discusses bilingual education as a hindrance to Hispanic students, and the need for improved standardized tests with single norms. Contains 27 references. (Author/SV)

The importance and consequences of raising the average ability level (IQ) of the population requires consideration of the ability level that society requires, how the relevant abilities are distributed, and the efficiency of the current educational process. Within the framework of these factors, the document discusses the determinants of mental…

Reviews the current theories concerning individual differences in cognitive functioning. While some argue that heredity places a genetic cap on intellectual development, others emphasize the dynamic interrelationship between cultural and environmental factors. Concludes that intelligence is more complex than the heredity advocates allow. (MJP)

Suggests that Dunn's genetic explanation for low Hispanic academic achievement is flawed, racist, and scientifically unfounded. Reviews historical efforts to suppress foreign language use and instruction in the United States. Calls for a reexamination of the implications of IQ test results in light of socioeconomic and cultural differences.…