Are There More Gifted People Than Would Be Expected in a Normal Distribution? An Investigation of the Overabundance Hypothesis

Autor:	Russell T. Warne, Lindsey R. Godwin, Kyle V. Smith
Rok vydání:	2013
Předmět:	Normal distribution education.field_of_study Intelligence quotient Research methodology Gifted education Population Cognition education Psychology Social psychology Education Statistical hypothesis testing Cognitive psychology
Zdroj:	Journal of Advanced Academics. 24:224-241
ISSN:	2162-9536 1932-202X
DOI:	10.1177/1932202x13507969
Popis:	Among some gifted education researchers, advocates, and practitioners, it is sometimes believed that there is a larger number of gifted people in the general population than would be predicted from a normal distribution (e.g., Gallagher, 2008; N. M. Robinson, Zigler, & Gallagher, 2000; Silverman, 1995, 2009), a belief that we termed the “overabundance hypothesis.” We tested this hypothesis by searching public datasets and the published literature for large representative datasets, 10 of which were found in 6 sources. Results indicated that the overabundance hypothesis was mostly unsupported by the data. Moreover, most datasets included approximately the same (or fewer) gifted individuals than would be predicted from a normal distribution. We conclude the article by exploring the theoretical reasons why the overabundance is likely untrue and why some might believe otherwise.
Databáze:	OpenAIRE
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