Psychometric Evaluation of a Receptive Vocabulary Test for Greek Elementary Students

Autor/inn/en	Simos, Panagiotis G.; Sideridis, Georgios D.; Protopapas, Athanassios; Mouzaki, Angeliki
Titel	Psychometric Evaluation of a Receptive Vocabulary Test for Greek Elementary Students
Quelle	In: Assessment for Effective Intervention, 37 (2011) 1, S.34-49 (16 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1534-5084
DOI	10.1177/1534508411413254
Schlagwörter	Elementary School Students; Reading Comprehension; Semantics; Educational Assessment; Test Validity; Psychometrics; Greek; Immigrants; Receptive Language; Foreign Countries; Item Analysis; Evaluation Methods; Difficulty Level; Item Response Theory; Language Tests; Replication (Evaluation); Greece; Peabody Picture Vocabulary Test + Suchen Sie Ihr Suchwort? Leseverstehen; Semantik; Education; assessment; Bewertungssystem; Testvalidität; Psychometry; Psychometrie; Grieche; Griechisch; Immigrant; Immigrantin; Immigranten; Rezeptive Kommunikationsfähigkeit; Ausland; Itemanalyse; Schwierigkeitsgrad; Item-Response-Theorie; Language test; Sprachtest; Griechenland
Abstract	Assessment of lexical/semantic knowledge is performed with a variety of tests varying in response requirements. The present study exemplifies the application of modern statistical approaches in the adaptation and assessment of the psychometric properties of the "Peabody Picture Vocabulary Test--Revised" (PPVT-R) Greek. Confirmatory factor analyses applied to data from a large sample of elementary school students (N = 585) indicated the existence of a single vocabulary dimension and differential item functioning procedures pointed to minimal bias due to gender or ethnic group. Rasch model-derived indices of item difficulty and discrimination were used to develop a short form of the test, which was administered to a second sample of 900 students. Convergent and discriminant validity were assessed through comparisons with the "Wechsler Intelligence Scales for Children"--III Vocabulary and Block design subtests. Short- and long-term stability of individual scores over a 6-month period were very high, and the utility of the test as part of routine educational assessment is attested by its strong longitudinal predictive value with reading comprehension measures. It is concluded that the Greek version of the PPVT-R constitutes a reliable and valid assessment of vocabulary for Greek students and immigrants who speak Greek. (Contains 4 tables and 6 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10