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Titolo:
Scaling MacDonald's AT-20 using item-response theory
Autore:
Lange, R; Houran, J;
Indirizzi:
Illinois State Board Educ, Springfield, IL 62777 USA Illinois State Board Educ Springfield IL USA 62777 ingfield, IL 62777 USA So Illinois Univ, Sch Med, Dept Psychiat, Springfield, IL 62705 USA So Illinois Univ Springfield IL USA 62705 hiat, Springfield, IL 62705 USA
Titolo Testata:
PERSONALITY AND INDIVIDUAL DIFFERENCES
fascicolo: 3, volume: 26, anno: 1999,
pagine: 467 - 475
SICI:
0191-8869(199903)26:3<467:SMAUIT>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
TOLERANCE; AMBIGUITY;
Keywords:
tolerance of ambiguity; rasch models; IRT model; scaling; AT-20; Rydell-Rosen;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Lange, R Illinois State Board Educ, 100 N 1st St, Springfield, IL 62777 USA Illinois State Board Educ 100 N 1st St Springfield IL USA 62777 A
Citazione:
R. Lange e J. Houran, "Scaling MacDonald's AT-20 using item-response theory", PERS INDIV, 26(3), 1999, pp. 467-475

Abstract

The responses of 110 subjects to 18 items of the AT-20 tolerance of ambiguity scale were analyzed in an item response framework using Rasch modeling. The results indicated that the items satisfy the assumptions of this modeland an excellent fit was obtained. In particular, the observed item reliability (KR-20) was 0.93 and the person reliability was 0.68. The latter value agrees with previous findings derived in a classical test theoretical framework. A Rasch type scale (M = 25, SD = 5) is developed and various psychometric and scaling issues are discussed. (C) 1999 Elsevier Science Ltd. Allrights reserved.

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Documento generato il 03/07/20 alle ore 01:10:52