This paper reviews the research on speech perception and reassesses the contribution of innate capacities versus external stimulation in conjunction with age in first- and second-language acquisition. A developmental model of speech perception is then discussed in relation to neonatal auditory perception. (Contains 86 references.) (MDM)

The author recounts his experiences investigating alleged fraud by Cyril Burt (1976) in his work on the genetic foundations of human intelligence. The evidence fails to prove Burt guilty, and his assertions about the genetic factors of individual differences in intelligence are finding corroboration in contemporary psychology. (SLD)

Data used to support Spearman's hypothesis have been incorrectly and inconsistently reported and do not support the claim that African-American-white differences in intelligence are not environmental in origin. Deaf children should not be considered a single population with respect to linguistic deprivation. (SLD)

Responds to this issue's initial article that presents 22 sequentially structured statements on the nature and origin of human abilities, gifts, and talents. Suggests putting aside the terms "gifted" and "talented," creating a hierarchical or categorical list of abilities, and downplaying the dichotomous conceptualization of nature and nurture.…

Outlines what developmentalists can do with genes associated with behavioral dimensions and disorders once they are found. Suggests that genes can be used to answer questions about developmental continuities, psychopathological patterns such as heterogeneity and comoribidty, and environmental-risk mechanisms informed by studies of gene/environment…

E. Paul Torrance believed that creativity, like other skills, could be taught. His test to assess creativity is described. Mihaly Csikszentmihalyi believes that the right combination of personal characteristics and encouraging environment produces creativity, and that children cannot be taught creativity. The adventure process creates an…

Parents who were identical twins, fraternal twins, or adopted siblings completed questionnaires assessing attitudes toward parenting and specific parenting practices, the emotional atmosphere of the home, and parental personality. Model-fitting results implicated modest genetic effects on affect-related aspects of parenting, such as parental…

Discusses how the genetic aspects of schizophrenia must be described within the interactive context of psychosocial stress. Suggests that the mental health profession must consider the environmental and social components of this condition, including the clients' relationships, families, and communities. States that psychotherapeutic interventions…

Responds to J. McCroskey and M. Beatty's article in this issue. Argues that debates over relative importance of nature versus nurture are misguided because the relative influence of genetic and environmental components varies depending on specific genes and environments under consideration and their specific interactions. Explores what these…

Replies to C. M. Condit's response to the authors' article on communibiology in the same issue of this journal, arguing that some of her challenges to communibiology are seriously flawed. (SR)

Happiness and ecological well-being are often portrayed as conflictual pursuits, but they may actually be complementary. In samples of adolescents (Study 1) and adults (Study 2), we tested this proposition and examined the role of three factors in promoting both subjective well-being (SWB) and ecologically responsible behavior (ERB). In both…

Genetic and environmental correlations among 11 Wechsler Intelligence Scale for Children-Revised (WISC-R) subtests were estimated from a sample of 143 twin pairs using the methodology of multivariate behavioral genetics. Correlations due to within-pair environmental influences were generally small, whereas those due to shared environmental…

Examines the findings of 53 studies of sex differences in propositional logic, combinatorial reasoning, and proportional reasoning tasks. Finds sex differences for the latter two tasks to be vulnerable to Rosenthal's "file drawer" problem and effect size to be small for all tasks. Discusses possible explanations for sex differences in…

This essay considers Jean Jacques Rousseau's conception of history in "Emile" and its relationship to Rousseau's educational curriculum. History is, for Rousseau, at the heart of the curriculum and is one of the chief instruments for imparting knowledge of the world and encouraging moral behavior. (PP)

The Ramey and Haskins intervention experiment is examined. Narrow transfer of training from cognitive intervention techniques to IQ test performance in early childhood, rather than enhancement of the g factor itself, is hypothesized as a cause of the typical fadeout of early IQ gains in later childhood. (Author/RD)