Initial Scale Development: Sample Size for Pilot Studies

Autor/inn/en	Johanson, George A.; Brooks, Gordon P.
Titel	Initial Scale Development: Sample Size for Pilot Studies
Quelle	In: Educational and Psychological Measurement, 70 (2010) 3, S.394-400 (7 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0013-1644
DOI	10.1177/0013164409355692
Schlagwörter	Pilot Projects; Measures (Individuals); Material Development; Sample Size; Correlation; Intervals + Suchen Sie Ihr Suchwort? Pilot project; Modellversuch; Pilotprojekt; Messdaten; Lehrmaterialentwicklung; Korrelation
Abstract	Pilot studies are often recommended by scholars and consultants to address a variety of issues, including preliminary scale or instrument development. Specific concerns such as item difficulty, item discrimination, internal consistency, response rates, and parameter estimation in general are all relevant. Unfortunately, there is little discussion in the extant literature of how to determine appropriate sample sizes for these types of pilot studies. This article investigates the choice of sample size for pilot studies from a perspective particularly related to instrument development. Specific recommendations are made for researchers regarding how many participants they should use in a pilot study for initial scale development. (Contains 3 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10