Literaturnachweis - Detailanzeige
Autor/inn/en | Adair, John G.; und weitere |
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Titel | The Placebo Control Group: An Analysis of Its Effectiveness in Educational Research. |
Quelle | In: Journal of Experimental Education, 59 (1990) 1, S.67-86Infoseite zur Zeitschrift |
Sprache | englisch |
Dokumenttyp | gedruckt; Zeitschriftenaufsatz |
ISSN | 0022-0973 |
Schlagwörter | Attention; Control Groups; Educational Research; Effect Size; Experimental Groups; Meta Analysis; Research Design; Research Reports; Sampling |
Abstract | A review and meta-analysis were made of placebo control groups in educational experiments. In all, 125 studies were clustered into procedures that included (1) explicit manipulation of attentional elements; (2) explicit description of the placebo activity plus implied reference to attention; and (3) exclusive reference to the activity. (SLD) |
Erfasst von | ERIC (Education Resources Information Center), Washington, DC |