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@article{ Stroessner2005,
 title = {Positive Mood and the Perception of Variability Within and Between Groups},
 author = {Stroessner, Steven J. and Mackie, Diane M. and Michalsen, Venezia},
 journal = {Group Processes & Intergroup Relations},
 number = {1},
 pages = {5-25},
 volume = {8},
 year = {2005},
 doi = {https://doi.org/10.1177/1368430205048619},
 urn = {https://nbn-resolving.org/urn:nbn:de:0168-ssoar-227696},
 abstract = {Three experiments investigated the effects of positive mood on perceptions of                variability within and between groups. Participants formed impressions of two                different and highly variable groups under a neutral or positive mood. When                participants expected to learn about both groups, positive mood increased perceived                intergroup similarity but did not affect perceived intragroup variability. In                contrast, when participants expected to learn about only one group, judgments of                intergroup and intragroup similarity were both affected by mood. Mood and the                intergroup context influenced the nature and degree of information processing and                resultant judgments of variability in social groups.},
}