Questions: Ingroup Favoritism and Bias

Question 1

Participants in a minimal group experiment are randomly assigned to 'Group A' or 'Group B' based on a coin flip. No competition, shared history, or tangible rewards exist. What does the minimal group paradigm predict about resource allocation?

• A. No bias — without competition or stakes, there is no reason to favor the ingroup
• B. Moderate bias — participants may show slight favoritism if they feel psychologically invested in the group
• C. Strong ingroup favoritism — mere categorization is sufficient to produce resource allocation favoring ingroup members
• D. Outgroup favoritism — participants in an arbitrary group feel guilty and compensate by favoring the outgroup

Answer: (C)

This is precisely the finding that made Tajfel's minimal group paradigm so influential: even when group membership is transparently arbitrary, meaningless, and provides no tangible benefit, participants reliably allocate more resources to fellow ingroup members than to outgroup members. More strikingly, they sometimes sacrifice absolute gains to maximize the difference between ingroup and outgroup allocations. This finding shows that competition and shared history are not necessary conditions for ingroup favoritism — mere social categorization is enough.

Question 2

According to social identity theory, what is the primary motivational driver of ingroup favoritism?

• A. Fear of outgroup members, who are perceived as potential threats to resources
• B. The desire to maintain positive self-esteem by viewing one's group favorably in comparison to outgroups
• C. Familiarity — we favor people we have interacted with more, and we interact more with ingroup members
• D. Reciprocity norms — we expect ingroup members to return favors, creating a rational basis for favoritism

Answer: (B)

Social identity theory proposes that group membership is incorporated into self-concept, so the group's standing reflects on the individual's sense of self-worth. Perceiving the ingroup as superior to the outgroup maintains positive social identity, which supports self-esteem. This is why favoritism emerges even with arbitrary groups where familiarity (option C) and reciprocity (option D) are absent, and why threat to self-esteem increases favoritism. Fear of outgroups (option A) is a separate phenomenon that requires additional conditions beyond mere categorization.

Question 3

Ingroup favoritism and outgroup hostility are the same psychological phenomenon — you can seldom have significant favoritism toward the ingroup without also having hostility toward the outgroup.

• T. True
• F. False

Answer: False

These are distinct phenomena with different causal structures. Ingroup favoritism is primarily a pull toward the ingroup — preferring, trusting, and supporting those who share the category. Systematic outgroup hostility tends to require additional conditions: intergroup competition for resources, large perceived-as-illegitimate status differences, or identity threat. One can show strong ingroup preference without actively denigrating outgroups. This asymmetry matters practically: interventions that reduce ingroup bias may not address outgroup hostility, which requires targeting threat and competition — a different set of mechanisms.

Question 4

In minimal group paradigm studies, participants sometimes sacrifice absolute gains to maximize the relative advantage of their group over the outgroup.

• T. True
• F. False

Answer: True

This is one of the most striking findings from Tajfel's research. When presented with allocation options, participants sometimes choose a lower absolute amount for their ingroup if the alternative would give the outgroup a smaller relative advantage. For example, they might choose ingroup = 7, outgroup = 1 over ingroup = 12, outgroup = 11 — sacrificing 5 absolute units to secure a larger intergroup difference. This reveals that the motivation is not simply to maximize resources but to establish positive intergroup comparisons, which is central to social identity theory's claim about self-esteem maintenance.

Question 5

What does the minimal group paradigm reveal about the necessary conditions for ingroup favoritism, and why is this finding considered surprising?

Model answer: The minimal group paradigm reveals that mere social categorization — being labeled as a member of a group, even one that is arbitrary and meaningless — is sufficient to produce ingroup favoritism. No shared history, prior interaction, competition, or tangible stakes are required. This is surprising because it undermines the intuitive explanation that favoritism arises from familiarity, shared experience, or rational self-interest. It suggests that the mere act of categorization activates identity-protective motivations powerful enough to bias behavior immediately.

Prior to this research, many assumed that ingroup favoritism reflected either rational self-interest (groups cooperate for mutual benefit) or experiential familiarity (we trust people we know). The minimal group paradigm eliminates both: the groups are meaningless and strangers. What remains is the cognitive act of categorization itself, which triggers the social identity motive — the need to view one's group, and therefore oneself, positively. This has implications for understanding prejudice: if minimal categorization generates bias, eliminating favoritism requires more than reducing competition or increasing familiarity.