Sample size bias in the estimation of means

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Sample size bias in the estimation of means.

The present research concerns the hypothesis that intuitive estimates of the arithmetic mean of a sample of numbers tend to increase as a function of the sample size; that is, they reflect a systematic sample size bias. A similar bias has been observed when people judge the average member of a group of people on an inferred quantity (e.g., a disease risk; see Price, 2001; Price, Smith, & Lench,...

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ژورنال

عنوان ژورنال: Psychonomic Bulletin & Review

سال: 2010

ISSN: 1069-9384,1531-5320

DOI: 10.3758/pbr.17.4.499