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Reconsidering the “relative” in relative ingroup prototypicality


Ullrich, Johannes (2009). Reconsidering the “relative” in relative ingroup prototypicality. European Journal of Social Psychology, 39(2):299-310.

Abstract

Relative ingroup prototypicality (RIP) is an important concept in the ingroup projection model (IPM) of social discrimination and tolerance. This paper reviews measures of RIP currently in use and critically examines how the notion of RIP is captured by statistical tests treating RIP as a single variable. It is concluded that composite measures of RIP imply multiple statistical hypotheses that have previously been confounded. The value of an alternative multiple regression approach is illustrated in a study testing the hypothesis of a negative relationship between RIP and outgroup attitudes. Results based on the conventional univariate analyses would have confirmed or disconfirmed the hypothesis depending on the scoring method. In contrast, the multiple regression approach described in this paper resolves this ambiguity by suggesting that only outgroup prototypicality may be necessary to predict outgroup attitudes.

Abstract

Relative ingroup prototypicality (RIP) is an important concept in the ingroup projection model (IPM) of social discrimination and tolerance. This paper reviews measures of RIP currently in use and critically examines how the notion of RIP is captured by statistical tests treating RIP as a single variable. It is concluded that composite measures of RIP imply multiple statistical hypotheses that have previously been confounded. The value of an alternative multiple regression approach is illustrated in a study testing the hypothesis of a negative relationship between RIP and outgroup attitudes. Results based on the conventional univariate analyses would have confirmed or disconfirmed the hypothesis depending on the scoring method. In contrast, the multiple regression approach described in this paper resolves this ambiguity by suggesting that only outgroup prototypicality may be necessary to predict outgroup attitudes.

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13 citations in Web of Science®
13 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:06 Faculty of Arts > Institute of Psychology
Dewey Decimal Classification:150 Psychology
Date:2009
Deposited On:15 Feb 2013 15:37
Last Modified:05 Apr 2016 16:32
Publisher:Wiley Online Library
ISSN:1099-0992
Publisher DOI:https://doi.org/10.1002/ejsp.540

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