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Abstract
Belonging to multiple groups is an important feature of our social lives. However, it is largely unknown if it is related to individual differences in cognitive performance. Given that changing self-identities linked to each group requires cognitive operations on knowledge bases associated with each group, the extent to which people belong to multiple groups may be related to individual differences in cognitive performance. Therefore, the main objective of this study was to test if multiple group membership is related to executive function task performance. A socioeconomically diverse sample of 395 individuals in Indonesia participated in this study. Our results show that multiple group membership was positively related to the 3-back working memory performance. However, we also found that this relationship was significant only among participants with high (not median or low) SES. We also observed that Contact diversity was negatively related to working memory performance among participants with low SES. Our results show that the complexity of our social lives is related to individual differences in executive function performance, although this seems to be constrained by SES.
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1 Hitotsubashi University, Graduate School of Social Sciences, Tokyo, Japan (GRID:grid.412160.0) (ISNI:0000 0001 2347 9884)
2 Airlangga University, Department of Management, Faculty of Economics and Business, Surabaya, Indonesia (GRID:grid.440745.6) (ISNI:0000 0001 0152 762X)
3 Victoria University of Wellington, School of Marketing and International Business, Wellington, New Zealand (GRID:grid.267827.e) (ISNI:0000 0001 2292 3111)
4 Université de Bourgogne, Centre Des Sciences du Goût et de L’Alimentation, CNRS, INRAE, Dijon, France (GRID:grid.5613.1) (ISNI:0000 0001 2298 9313); Karolinska Institutet, Division of Psychology, Department of Clinical Neuroscience, Stockholm, Sweden (GRID:grid.4714.6) (ISNI:0000 0004 1937 0626)
5 Monash University Malaysia, Department of Psychology, Jeffrey Cheah School of Medicine and Health Sciences, Subang Jaya, Malaysia (GRID:grid.440425.3)
6 IdeaLab Inc., Tokyo, Japan (GRID:grid.440425.3)
7 Sunway University, Department of Psychology, School of Medical and Life Sciences, Petaling Jaya, Malaysia (GRID:grid.430718.9) (ISNI:0000 0001 0585 5508)