A single‐item measure of social identification: Reliability, validity, and utility
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- Tom Postmes
- Department of Social and Organizational Psychology University of Groningen The Netherlands
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- S. Alexander Haslam
- University of Exeter UK
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- Lise Jans
- Department of Social and Organizational Psychology University of Groningen The Netherlands
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説明
<jats:p>This paper introduces a single‐item social identification measure (<jats:styled-content style="fixed-case">SISI</jats:styled-content>) that involves rating one's agreement with the statement ‘I identify with my group (or category)’ followed by a 7‐point scale. Three studies provide evidence of the validity (convergent, divergent, and test–retest) of <jats:styled-content style="fixed-case">SISI</jats:styled-content> with a broad range of social groups. Overall, the estimated reliability of <jats:styled-content style="fixed-case">SISI</jats:styled-content> is good. To address the broader issue of single‐item measure reliability, a meta‐analysis of 16 widely used single‐item measures is reported. The reliability of single‐item scales ranges from low to reasonably high. Compared with this field, reliability of the <jats:styled-content style="fixed-case">SISI</jats:styled-content> is high. In general, short measures struggle to achieve acceptable reliability because the constructs they assess are broad and heterogeneous. In the case of social identification, however, the construct appears to be sufficiently homogeneous to be adequately operationalized with a single item.</jats:p>
収録刊行物
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- British Journal of Social Psychology
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British Journal of Social Psychology 52 (4), 597-617, 2012-11-04
Wiley
