Contents of this symposium comprises: Introduction (W. B. Dockrell); The Genetics of Intelligence (Sir C. Burt); Structuring Mental Acts (P. R. Merrifield); A "Piagetian" Test of Cognitive Development (R. D. Tuddenham); The British Intelligence Scale (R. W. Warburton); Intelligence (P. E. Vernon); Hierarchical Theories of Mental Ability…

Jensen (1985) caused us to reexamine earlier findings. After correcting perceptual efficiency and executive systems measures for unreliability, original conclusions remain tenable. Control processes are factors in understanding race-related differences in intelligence. We do not deny the association of "speediness" but argue for a multidimensional…

Analyzed WISC-R profiles of 42 conduct problem children to generate hypotheses concerning the children's intellectual strengths and weaknesses. Used a variety of subtest groupings to interpret ability patterns. Findings revealed relative strengths in perceptual organization skills, and weaknesses in skills that involve sequencing, memory, and…

Presents longitudinal data regarding detrimental effects through 36 months of age on intellectual, behavioral, and social-interactional development in a nonsupportive caregiving environment, and the continuing amelioration of those effects in a supportive caregiving environment. Suggests that mothers of fetally malnourished infants may have had…

Six Hong Kong preschoolers with Down syndrome who attended a center-based educational intervention program were assessed and matched on age, mental age (MA), and IQ. Three of the preschoolers also attended regular preschools two days per week. After a year, the children who also had attended regular preschool had higher MA and IQ. (Author/CR)

The intellectual development of black college students on a predominantly white campus was examined using the Reflective Judgment model of post-adolescent intellectual development. The model posits a seven-stage sequence of changes in assumptions about the sources of certainty of knowledge, and shows how these assumptions affect the ways adults…

From the monthly Saturday Review supplement, "Education in America, sponsored by the Charles F. Kettering Foundation.

THE RELATIONSHIP OF MOVEMENT RESPONSES TO LEARNING ACHIEVEMENT WERE INVESTIGATED (1) TO IDENTIFY FACTORS CLAIMED TO MEASURE MOTOR APTITUDE AND INTELLECTUAL ACHIEVEMENT IN PRE-ADOLESCENTS, (2) TO DEVELOP MOTOR APTITUDE TEST BATTERIES FOR PREDICTING INTELLECTUAL ACHIEVEMENT, (3) TO STUDY RELATIONSHIPS OF COORDINATION AND BALANCE TEST ITEMS IN…

Sex difference research has been plagued with a myriad of problems,. Specifically, intelligence testing, if dependent on measurement of spatial or verbal proficiency, may not be an accurate indicator of native ability. Similarly, infrequent replication of studies, studies that only include subjects of one sex yet imply sex differences, and poor…

Separate dimensions of infant cognition were compared with parental general- and specific-cognitive abilities for 182 adoptive and 164 nonadoptive families. More parent-offspring resemblance was present when 24- rather than 12-month Bayley factors were used. Bayley factors were more related to parental g than to specific abilities. (Author/RD)

Intelligence quotients from the Slosson Intelligence Test for 60 Head Start children drawn from three areas of metropolitan St. Louis showed the group to be heterogeneous with respect to intelligence. No significant differences were associated with sex or race. Consideration of such characteristics is needed in planning school programs. (Author/CM)

Intended as a nontechnical review of current scientific knowledge in the field, this essay considers the nature of primary and secondary intellectual abilities, plus the major features of, and the development of individual differences in, the skills and capacities constituting intelligence. Part of a theme issue on intelligence. (Author/SJL)

Pychologists, educators, and others have challenged the idea of a fixed IQ. This book uses recent research and earlier discoveries to argue that intelligence is not genetically set. Noting that the idea of learnable intelligence reflects the belief that intelligence can be taught, the book outlines a theory of learnable intelligence, including…

Two studies examined modifiability in intellectual functioning in older adults. The fluid-crystallized theory provided a theory base for the research. (Fluid intelligence follows a normative decline through adulthood, while crystallized intelligence remains stable or even increases.) In the first study thirty subjects (average age 69.2)…

This paper reviews studies in which scores on Piagetian tests of logical thought were correlated with IQ, mental age (MA) and chronological age (CA), and examines the possible effects of the size of the age range and mean age of subjects on these correlations. The data included 44 groups of subjects obtained from 36 studies in which Piagetian and…