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Author
Hartig, Johannes;
Frey, Adreas;
Nold, Günter;
Klieme, Eckhard:
Title:
An application of explanatory item response modeling for model-based proficiency scaling
Source:
In: Educational and Psychological Measurement,
72
(2012)
4
, 665-686
URL of full text:
http://dx.doi.org/10.1177/0013164411430707
DOI:
doi:10.1177/0013164411430707
Language:
Englisch
Document type
3a. Beiträge in begutachteten Zeitschriften; Aufsatz (keine besondere Kategorie)
Schlagwörter:
Empirische Forschung,
Englisch als Zweitsprache,
Item-Response-Theory,
Leistungsmessung,
Leseverstehen,
Messverfahren,
Methode,
Modell,
Psychometrie,
Rasch-Modell,
Schülerleistung,
Test,
Vergleich
Abstract(englisch):
The article compares three different methods to estimate effects of task characteristics and to use these estimates for model-based proficiency scaling: prediction of item difficulties from the Rasch model, the linear logistic test model (LLTM), and an LLTM including random item effects (LLTM+ e). The methods are applied to empirical data from a German large-scale study of reading comprehension in English as a foreign language (N = 10,543). A priori defined task characteristics were used as predictors for item difficulty; the estimated effects were used to define thresholds between proficiency levels. The comparison of results indicates that the LLTM is too restrictive; the Rasch model and the LLTM+ e yield similar results in terms of implications for scale anchoring.
DIPF-Departments:
Educational Quality and Evaluation
Notes: