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| Autor/inn/en | Plonsky, Luke; Derrick, Deirdre J. |
|---|---|
| Titel | A Meta-Analysis of Reliability Coefficients in Second Language Research. |
| Quelle | In: The modern language journal, 100 (2016) 2, S. 538-553 |
| Beigaben | Anmerkungen 1; Literaturangaben; Tabellen 9 |
| Sprache | englisch |
| Dokumenttyp | gedruckt; Zeitschriftenaufsatz |
| ISSN | 0026-7902 |
| Schlagwörter | Empirische Forschung; Quantitative Forschung; Reliabilität; Zweitsprachenerwerbsforschung; Analyse |
| Abstract | Ensuring internal validity in quantitative research requires, among other conditions, reliable instrumentation. Unfortunately, however, second language (L2) researchers often fail to report and even more often fail to interpret reliability estimates beyond generic benchmarks for acceptability. As a means to guide interpretations of such estimates, this article meta-analyzes reliability coefficients (internal consistency, interrater, and intrarater) as reported in published L2 research. The authors recorded 2,244 reliability estimates in 537 individual articles along with study (e.g., sample size) and instrument features (e.g., item formats) proposed to influence reliability. They also coded for the indices employed (e.g., alpha, KR20). The coefficients were then aggregated (i.e., meta-analyzed). The three types of reliability varied, with internal consistency as the lowest: median = .82. Interrater and intrarater estimates were substantially higher (.92 and.95, respectively). Overall estimates were also found to vary according to study and instrument features such as proficiency (low = .79, intermediate = .84, advanced = .89) and target skill (e.g., writing = .88 vs. listening = .77). The authors use their results to inform and encourage interpretations of reliability estimates relative to the larger field as well as to the substantive and methodological features particular to individual studies and subdomains. (Verlag, adapt.). |
| Erfasst von | Informationszentrum für Fremdsprachenforschung, Marburg |
| Update | 2022/2 |
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