Commentary on Biasing Effects of Pilot Samples and Gillett's Observations on the Stein Confidence Interval

A previous note demonstrated that correctable bias is present when pilot sample information is used to establish sample size. Though Gillett claims that the Stein approach is a superior method for establishing sample size, we argue that it pursues an artificial goal, is impractical, and is subject t...

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Bibliographic Details
Published inJournal of marketing research Vol. 26; no. 2; pp. 241 - 243
Main Authors Adams, Arthur J., Shiffler, Ronald E.
Format Journal Article
LanguageEnglish
Published Chicago American Marketing Association 01.05.1989
Subjects
Research Notes and Communications
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ISSN0022-2437
1547-7193
DOI10.1177/002224378902600211

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Summary:A previous note demonstrated that correctable bias is present when pilot sample information is used to establish sample size. Though Gillett claims that the Stein approach is a superior method for establishing sample size, we argue that it pursues an artificial goal, is impractical, and is subject to the underachievement effect that prompted our original note.
Bibliography:ObjectType-Article-2
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ISSN:0022-2437
1547-7193
DOI:10.1177/002224378902600211