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Titolo:
ARE SIMPLE GAIN SCORES OBSOLETE - COMMENTARY
Autore:
WILLIAMS RH; ZIMMERMAN DW;
Indirizzi:
UNIV MIAMI,SCH EDUC,DEPT EDUC & PSYCHOL STUDIES,317-B MERRICK BLDG,POB 248065 CORAL GABLES FL 33124 CARLETON UNIV OTTAWA ON K1S 5B6 CANADA
Titolo Testata:
Applied psychological measurement
fascicolo: 3, volume: 20, anno: 1996,
pagine: 295 - 297
SICI:
0146-6216(1996)20:3<295:ASGSO->2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Keywords:
CHANGE SCORES; CLASSICAL TEST THEORY; DIFFERENCE SCORES; GAIN SCORES; INTRAINDIVIDUAL DIFFERENCES; MEASUREMENT OF GROWTH; RELIABILITY; TEST THEORY; VALIDITY;
Tipo documento:
Editorial Material
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Physical, Chemical & Earth Sciences
Citazioni:
4
Recensione:
Indirizzi per estratti:
Citazione:
R.H. Williams e D.W. Zimmerman, "ARE SIMPLE GAIN SCORES OBSOLETE - COMMENTARY", Applied psychological measurement, 20(3), 1996, pp. 295-297

Abstract

The critiques of Collins (1996) and Humphreys (1996) certainly throw light on properties of gain scores and difference scores that have ledto controversies in the past. Collins' examples reveal that familiar formulas for the reliability of differences do not adequately reflect the precision of measures of change, because they do not allow for intraindividual change. Some additional examples are provided here, and asimilar argument is applied to the reliability of a single test. As Collins implies, these arguments indeed disclose flaws, not only in theconventional approach to the reliability of gains and differences, but also in the basic concept of reliability in classical test theory.

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Documento generato il 14/07/20 alle ore 03:56:16