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Titolo:
Statistical significance and effect size in education research: Two sides of a coin
Autore:
Fan, XT;
Indirizzi:
Univ Virginia, Curry Sch Educ, Charlottesville, VA 22904 USA Univ Virginia Charlottesville VA USA 22904 Charlottesville, VA 22904 USA
Titolo Testata:
JOURNAL OF EDUCATIONAL RESEARCH
fascicolo: 5, volume: 94, anno: 2001,
pagine: 275 - 282
SICI:
0022-0671(200105/06)94:5<275:SSAESI>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
SIGNIFICANCE TESTS; PSYCHOLOGY;
Keywords:
effect-size measures; research practice; statistical significance testing;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Fan, XT Univ Virginia, Curry Sch Educ, 287 Ruffner,405 Emmer St S,POB 400277, Charlottesville, VA 22904 USA Univ Virginia 287 Ruffner,405 Emmer St S,POB 400277 Charlottesville VA USA 22904
Citazione:
X.T. Fan, "Statistical significance and effect size in education research: Two sides of a coin", J EDUC RES, 94(5), 2001, pp. 275-282

Abstract

In education research, statistical significance and effect size are 2 sides of 1 coin; they complement each other but they do not substitute for eachother. Good research practice requires that, to make sound research decisions, both sides should be considered. In a simulation study, the sampling variability of 2 popular effect-size measures (d and R-2) was examined. The variability showed that what is statistically significant may not he practically meaningful, and what appears to be practically meaningful could have been the result of sampling error, thus not trustworthy, Some practical guidelines are suggested for combining the 2 sources of information in research practice.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/09/20 alle ore 16:18:08