This study investigates the relationship between the students' understanding of the aims of an investigative activity and their performance when conducting it. One hundred and eighty-one year nine students from a public middle school in Brazil took part in the study. Students working in pairs were asked to investigate two problems using a…

The relation between intelligence and birth order was shown in a recent publication [Bjerkedal, T., Kristensen, P., Skjeret, G. A. & Brevik, J. I. (2007). Intelligence test scores and birth order among young Norwegian men (conscripts) analyzed within and between families. "Intelligence," 35, 503-514] to be negative. Subjects in this…

Rett syndrome (RS) is a severe neurodevelopmental disorder that mostly affects females. It is characterized by a regression of motor, cognitive, linguistic, and social abilities and by an inappropriate and stereotypical use of the hands. The purpose of the current study was to explore the possibility of rehabilitating purposeful use of the hands…

Discusses how viewing intelligence as a learned skill and not a genetic gift may make the standard IQ test a thing of the pedagogical past. (GB/Editor)

Presents the idea that social systems evolve to increase the genetic fitness of individuals in specific environments. Cites examples of animal behavior and environmental influences that may indicate why different social systems have evolved. (GS)

Excerpt of a PhD dissertation submitted to the New York University School of Education

The directory lists medical genetic units in the United States and elsewhere in the world. The director and address of each unit are specified; types of genetic services available are indicated by code. (JD)

This booklet, in the series "Understanding the Atom," summarizes the important findings on radioactive fallout for which there is substantial scientific agreement, indicates the areas of disagreement, and lists some answered questions. Sources of fallout, its local and worldwide effects (including movement in the atmosphers), the…

Describes the science of hair analysis and its use in the solution of crimes. Methods of analysis and genetic and environmental characteristics which can be inferred are presented. (CP)

Stresses ways to answer questions related to widespread publicity - are nuclear reactors safe, will dangerous research in genetic manipulation be banned? - with emphasis on true meaning of safety as related to risks. (EB)

Describes the Miller and Urey experiment to synthesize organic compounds. Includes subsequent research and relates these studies to the formation of one-celled organisms in an oxygen-free atmosphere. (MA)

Discusses private interest attacks on academic freedom and the underlying question, "what kinds of scientific research are to be screened by public debate"? Suggests that it is the implications of research that should receive public and ideological attention while the research itself should be evaluated by objective scientists, those…

The application of component analysis to phenotypic, genetic, and environmental correlation matrices is discussed. Formulas for computation of component scores and the interpretation of factors is discussed. An example is presented. (Author/JKS)