The relatively long-term effects of temperament on classroom achievement were studied in a cohort of elementary students while accounting for variation in cognitive ability, previous achievement, and gender. The existence of long-term effects would support the hypothesis that indirect genetic effects on learning are mediated by temperament.…

Designed to provide teachers with low cost laboratory exercises, project ideas, and classroom activities for individuals and groups, this document focuses on the concepts of heredity and embryology. The materials address the topics of: (1) cell division; (2) the identification of the human embryo; (3) chromosomes; (4) DNA; (5) differences in the…

The opinions of 1,585 Iowa farmers about 8 emergent agricultural technologies (energy production from feed grains and oils; energy production from livestock waste; genetic engineering research on plants, livestock, and humans; robotics for on-farm use; confinement livestock facilities; and personal computers for farm families) were found to be…

One aim of this study was to identify, in a group of unsuccessful college level problem solvers, the status and use of their declarative knowledge as revealed by students' attempts to solve novel problems in a pencil-and-paper setting. It was hypothesized that for some unsuccessful problem solvers, their problem representation could be improved by…

The purpose of the research was to manipulate two aspects of genetics instruction in order to measure their effects on college, introductory biology students' achievement in genetics. One instructional sequence that was used dealt first with monohybrid autosomal inheritance patterns, then sex-linkage. The alternate sequence was the reverse.…

This is the student's edition of the Record Book of one of the eight units of the Intermediate Science Curriculum Study (ISCS) for level III students (grade 9). Space is provided for answers to the questions from the text as well as for the "excursions" and the self evaluation. An introductory note to the student explains how to use the…

Experiences in prenatal life and early childhood that may cause personality disorders or criminal behavior in later life are examined in these proceedings of the Subcommittee on Childhood Experiences as Causes of Criminal Behavior of the Standing Committee on Health, Welfare and Science. This issue, the tenth in a series of 19 hearings dating from…

The objective of this research paper is to present evidence showing that sex differences in aggression are universal, but that within limits the differences are also highly susceptible to experiential modification. Aggression is defined as any behavior that intends to hurt a person or a thing, physically or verbally. Investigation was conducted…

This paper identifies and analyzes some of the arguments employed by those who feel that "we have done enough" for the less fortunate members of society, who wish to curtail or end Federal involvement in social change, and who have lost sight of the dual goals of individualism and equality of opportunity. These arguments fall roughly into three…

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…

Discusses the rapid increase in interest in biotechnology. Emphasizes the implications for inservice training of teachers. Describes a means of producing a modular course which may be flexibly used for inservice work. Focuses on improving the background knowledge of teachers, giving relevant practice experience and considering various teaching…

There has been very little progress in closing the Black/White achievement gap in education. In this book, the author Mano Singham takes a look at this problem in the context of larger political realities and contends that in order to understand this gap, we must determine what is happening within the educational system as a whole. This book…

This digest discusses the most frequently diagnosed mood disorders in children and adolescents, including major depressive disorder, dysthymic disorder, and bipolar disorder. The symptoms of these disorders are described, along with family and genetic causal factors, biological causal factors, and cognitive causal factors. The digest then…

This book analyzes the MacArthur Longitudinal Twin Study, a collaborative study by leading developmental scientists and behavioral geneticists on the transition from infancy to early childhood. Part 1 of the book describes the twin method and procedures used and introduces the analytic strategies. Parts 2 through 4 present results related to…

This article summarizes the thesis of "The Bell Curve: Intelligence and Class Structure in American Life," noting its rejection of educational intervention to solve social problems correlated to low IQ. It critiques the book for its failure to consider important research findings, and addresses the race issue, urging that the book's…