Conducting Evaluations Using Multiple Trials

Autor/inn/en	Barnow, Burt S.; Greenberg, David H.
Titel	Conducting Evaluations Using Multiple Trials
Quelle	In: American Journal of Evaluation, 41 (2020) 4, S.564-580 (17 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Barnow, Burt S.) ORCID (Greenberg, David H.)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1098-2140
DOI	10.1177/1098214020938441
Schlagwörter	Evaluation; Randomized Controlled Trials; Experiments; Replication (Evaluation); Program Evaluation; Program Design; Sample Size; Statistical Analysis; Fidelity; Pilot Projects; Demonstration Programs; Validity + Suchen Sie Ihr Suchwort? Evaluierung; Erprobung; Programme evaluation; Programmevaluation; Programme design; Programmaufbau; Programmplanung; Statistische Analyse; Pilot project; Modellversuch; Pilotprojekt; Gültigkeit
Abstract	This paper reviews the use of multiple trials, defined as multiple sites or multiple arms in a single evaluation and replications, in evaluating social programs. After defining key terms, the paper discusses the rationales for conducting multiple trials, which include increasing sample size to increase statistical power; identifying the most effective program design; increasing external validity; and learning how various factors affect program impact. The paper discusses reasons why program design varies across sites, including adaptations to local environment and participant characteristics and a lack of fidelity to the program design. The paper discusses why programs vary across sites and when it is desirable to maintain consistency. Distinctions are drawn between evaluations of pilots and demonstrations versus ongoing programs, as well as programs where variation is permitted or encouraged versus when a fixed design is desired. The paper includes illustrations drawn from evaluations of demonstrations and ongoing programs. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01