Hereditary and Environmental Components of Quantitative Reasoning.

Autor/in	Stafford, Richard E.
Institution	State Univ. of New York, Oneonta. Coll. at Oneonta.
Titel	Hereditary and Environmental Components of Quantitative Reasoning.
Quelle	(1971), (22 Seiten) PDF als Volltext kostenfreie Datei Verfügbarkeit
Beigaben	Tabellen
Dokumenttyp	gedruckt; online; Monographie
Schlagwörter	Tagungsbericht; Ability; Ability Identification; Environmental Influences; Heredity; Mathematics Education; Nonverbal Ability; Research; Sex Differences; Twins + Suchen Sie Ihr Suchwort? Fähigkeit; Fertigkeit; Environmental influence; Umwelteinfluss; Erblichkeit; Mathematische Bildung; Forschung; Sex difference; Geschlechtsunterschied; Twin; Zwilling
Abstract	The results of a study investigating heredity components of mathematical ability as well as sexual differences related to this ability are reported. A test containing 26 arithmetic problems was administered to 300 pairs of twins. Analysis of the data included within and between pair variance, and intraclass correlations for each sex and zygosity group. In addition, the data were also analyzed by a new technique called "dichotomic analysis" to test for evidence of an underlying biomodality in the distribution of scores. The author concludes that there is an underlying heredity component for proficiency in quantitative reasoning, and that this component fits a sex-linked recessive model fairly well. The paper also includes summaries of previous studies of heredity and environmental components of mathematical abilities, and a bibliography of related research. [Not available in hardcopy due to marginal legibility of original document.] (CT)
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2004/1/01