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Vandenberg, Steven G.; Johnson, Ronald C. – 1966
Ronald C. Johnson argued that if early environmental stimulation or deprivation has a significant effect on intellectual ability, then individuals who are genetically identical and who are exposed to a common early environment should resemble one another more closely in IQ than similar individuals who have not shared a common environment. Johnson…
Descriptors: Comparative Analysis, Early Experience, Environmental Influences, Family Influence
Elkind, David – Harvard Educ Rev, 1969
Descriptors: Child Development, Cognitive Development, Environmental Influences, Genetics

Galbraith, Richard C. – Intelligence, 1983
Support for the confluence model of intellectual development has come from analyses of family size-birth order means of large aggregate data sets. Analyses of individual scores do not substantiate the confluence model, as explained variance is markedly reduced. The study of family interaction variables utilizing longitudinal data is recommended.…
Descriptors: Birth Order, Environmental Influences, Family Influence, Family Size

Marjoribanks, Kevin – American Journal of Sociology, 1972
In this study, the relationship between a refined measure of the learning environment of the home and the levels and profiles of a set of mental ability scores of children from five Canadian ethnic groups was examined. Significant group differences persisted in the verbal, number, and reasoning scores. (Author/JMB)
Descriptors: Ability Identification, Cognitive Development, Cultural Background, Environmental Influences

Gonda, Judith – Educational Gerontology, 1980
Reviews the influence of educational level on the intellectual performance of elderly individuals. Older individuals have more intellectual potential than previously has been reported. As cohorts receive greater educational opportunities, the negative stereotype of intellectual deterioration with age will no longer be accurate. (Author)
Descriptors: Aging (Individuals), Cognitive Processes, Cultural Influences, Educational Attainment

Kanevsky, Lannie – Roeper Review, 1995
A model of the sources of differences in the learning potentials of students is presented, including group differences in learning potentials between gifted and nongifted students; interindividual differences between gifted students; intraindividual differences within one gifted student; and independent and interactive contributions of…
Descriptors: Academic Aptitude, Cognitive Style, Educational Environment, Elementary Secondary Education

Espy, Kimberly Andrews; Molfese, Victoria J.; DiLalla, Lisabeth F. – Merrill-Palmer Quarterly, 2001
Examined effects of different environmental measures on individual intellectual growth patterns. Growth curve analyses revealed that HOME scores exerted a constant influence on the expected composite, verbal, and nonverbal intellectual skills at each age. Only SES influenced the rate of growth, specifically nonverbal intellectual skills. (Author)
Descriptors: Early Childhood Education, Educational Environment, Environmental Influences, Family Environment
Bower, T. G. R. – 1977
The growth model of intelligence; i.e. intelligence is the product of genetics plus environment (I.Q.=G+E), is discussed and questioned. If the growth model is discarded, formulating the problem of the development of intelligence in different ways and thinking of different possible technologies for changing intelligence can begin. The child…
Descriptors: Child Development, Children, Cultural Differences, Developmental Stages
Voyat, Gilbert – Saturday Rev, 1969
From the monthly Saturday Review supplement, "Education in America, sponsored by the Charles F. Kettering Foundation.
Descriptors: Blacks, Cognitive Development, Educational Psychology, Environmental Influences
Educational Testing Service, Princeton, NJ. – 1970
This illustrated booklet describes research procedures in the Infant Laboratory of the Educational Testing Service to investigate measurable factors in infant behavior which can predict intellectual potential. The research is currently focusing on attending, the manner in which infants respond to various stimuli presented to them during their…
Descriptors: Attention Span, Cognitive Processes, Conceptual Tempo, Cultural Influences
Ramey, Craig T.; Haskins, Ron – 1979
Infants judged to be at risk for subnormal intellectual growth were randomly assigned to an experimental (N=27) or a control (N=25) group. Infants in both groups received medical care and dietary supplements; their families received social work services on a request basis. Experimental children participated in an educational day care program…
Descriptors: Child Development, Day Care, Early Childhood Education, Early Experience
Anastasi, Anne – 1973
Much of our thinking about contemporary social problems reflects tacit presuppositions regarding the operation of heredity and environment in human behavior. These beliefs have important implications for practical decisions. Advances in genetics, psychology, anthropology, and other disciplines have contributed much to a clarification of the…
Descriptors: Behavior Development, Behavior Problems, Biological Influences, Cognitive Development

Singh, B. R. – Educational Studies, 1996
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)
Descriptors: Adjustment (to Environment), Cognitive Ability, Cognitive Development, Cultural Influences