Literaturnachweis - Detailanzeige
Autor/inn/en | Zimmerman, Donald W.; und weitere |
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Titel | Coefficient Alpha as an Estimate of Test Reliability under Violation of Two Assumptions. |
Quelle | In: Educational and Psychological Measurement, 53 (1993) 1, S.33-49Infoseite zur Zeitschrift |
Sprache | englisch |
Dokumenttyp | gedruckt; Zeitschriftenaufsatz |
ISSN | 0013-1644 |
Schlagwörter | Computer Simulation; Estimation (Mathematics); Mathematical Models; Robustness (Statistics); Scores; Statistical Bias; Test Reliability |
Abstract | Coefficient alpha was examined through computer simulation as an estimate of test reliability under violation of two assumptions. Coefficient alpha underestimated reliability under violation of the assumption of essential tau-equivalence of subtest scores and overestimated it under violation of the assumption of uncorrelated subtest error scores. (SLD) |
Erfasst von | ERIC (Education Resources Information Center), Washington, DC |