Literaturnachweis - Detailanzeige
| Autor/in | Theobald, Elli |
|---|---|
| Titel | Students Are Rarely Independent: When, Why, and How to Use Random Effects in Discipline-Based Education Research |
| Quelle | In: CBE - Life Sciences Education, 17 (2018) 3, (12 Seiten)Infoseite zur Zeitschrift
PDF als Volltext |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 1931-7913 |
| DOI | 10.1187/cbe.17-12-0280 |
| Schlagwörter | Educational Research; Hierarchical Linear Modeling; Program Implementation; Predictor Variables; Correlation; College Entrance Examinations; Control Groups; Experimental Groups; Cluster Grouping; Intellectual Disciplines; Science Instruction; College Science; SAT (College Admission Test) |
| Abstract | Discipline-based education researchers have a natural laboratory--classrooms, programs, colleges, and universities. Studies that administer treatments to multiple sections, in multiple years, or at multiple institutions are particularly compelling for two reasons: first, the sample sizes increase, and second, the implementation of the treatments can be intentionally designed and carefully monitored, potentially negating the need for additional control variables. However, when studies are implemented in this way, the observations on students are not completely independent; rather, students are clustered in sections, terms, years, or other factors. Here, I demonstrate why this clustering can be problematic in regression analysis. Fortunately, nonindependence of sampling can often be accounted for with random effects in multilevel regression models. Using several examples, including an extended example with R code, this paper illustrates why and how to implement random effects in multilevel modeling. It also provides resources to promote implementation of analyses that control for the nonindependence inherent in many quasi-random sampling designs. (As Provided). |
| Anmerkungen | American Society for Cell Biology. 8120 Woodmont Avenue Suite 750, Bethesda, MD 20814-2762. Tel: 301-347-9300; Fax: 301-347-9310; e-mail: ascbinfo@ascb.org; Website: http://www.ascb.org |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2020/1/01 |
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