Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
ARE SIMPLE GAIN SCORES OBSOLETE
Autore:
WILLIAMS RH; ZIMMERMAN DW;
Indirizzi:
UNIV MIAMI,DEPT EDUC & PSYCHOL STUDIES,POB 248065 CORAL GABLES FL 33124 CARLETON UNIV OTTAWA ON K1S 5B6 CANADA
Titolo Testata:
Applied psychological measurement
fascicolo: 1, volume: 20, anno: 1996,
pagine: 59 - 69
SICI:
0146-6216(1996)20:1<59:ASGSO>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
SIGNIFICANCE TESTS; RELIABILITY; GROWTH; POWER;
Keywords:
CHANGE SCORES; DIFFERENCE SCORES; GAIN SCORES; MEASUREMENT OF GROWTH; RELIABILITY; TEST THEORY; VALIDITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Physical, Chemical & Earth Sciences
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
R.H. Williams e D.W. Zimmerman, "ARE SIMPLE GAIN SCORES OBSOLETE", Applied psychological measurement, 20(1), 1996, pp. 59-69

Abstract

It is widely believed that measures of gain, growth, or change, expressed as simple differences between pretest and posttest scores, are inherently unreliable. It is also believed that gain scores lack predictive validity with respect to other criteria. However, these conclusions are based on misleading assumptions about the values of parameters in familiar equations in classical test theory. The present paper examines modified equations for the validity and reliability of difference scores that describe applied testing situations more realistically andreveal that simple gain scores can be more useful in research than commonly believed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 09:02:22