12.4
During the 1950s, the landmark Robbers Cave experiment demonstrated that when groups must compete with one another, intergroup conflict, hostility, an…
In 1954, what began as summer camp amidst Robbers Cave State Park in Oklahoma emerged as a famous field study on social identity and intergroup relations.
Building upon previous work, Muzafer Sherif and colleagues tested the realistic conflict theory—a notion that individuals who must contend for scarce resources—either perceived or real—begin to exhibit competitive tendencies and negative attitudes as a result.
Before arriving, researchers carefully selected 22 fifth-grade boys of similar sociocultural and personal backgrounds and randomly assigned them to one of two groups.
All subjects were unknown to each other, as well as unaware of the experiment’s purpose and that they would be conspicuously observed and recorded by the researchers who were disguised as “camp staff” members.
During the first in-group formation phase, the 11- to 12-year-olds arrived on separate buses—without knowing that the others existed, since they were housed at isolated sites. They were directed to bond within their group while participating in activities, like hiking and canoeing.
Throughout their first week together, the boys became connected and established group norms, singing songs and playing games, as well as their identities. They’re now the Eagles and Rattlers.
To set-up the next part, the Rattlers were allowed to wander near the ball field, within distance to hear the Eagles playing. At practice the very next day, the Rattlers outwardly declared the field “theirs”.
For the second stage, the intergroup friction phase, the staff officially announced the presence of another group. This revelation elicited heightened awareness of “us” versus “them”, and both teams charged ahead with enthusiastic rivalry.
In a series of events, the groups would compete in a tournament of activities, like baseball and tug-of-war. While most of the outcomes were determined by the victorious team, a few occasions, such as cabin inspections, were judged by the staff to keep the point totals tight and the teams motivated to win.
Over the next week, both sides participated in numerous incidents of name-calling and humiliation—even campers who weren’t as active in the physical participation.
As the days passed, the losers’ frustrations turned more physical: The Eagles burned the Rattler’s flag, and in turn, the members retaliated; sportsmanship was on the decline, as the smell of victory approached; and unfair tactics caught the confident Rattlers off balance.
The mood, now hostile, fostered ransacking of the cabins—beds were overturned and property was stolen, including comic books. And sure enough, the raids became a reciprocal occurrence as the tournament was coming to an end.
Who would prevail hinged on the last event, a treasure hunt. Unbeknownst to the campers, the winning team was determined by the researchers, who manipulated the routes.
In the days following victory and defeat, the researchers devoted time for everyone to cool off and enjoy in-group activities—including civilized swimming time at the beach.
At the end of the second phase, the groups were once again placed within physical proximity to each other, and their behavior was observed. Their responses confirmed tendencies to classify their own in-group favorably—indicating positive group relations—and the out-group unfavorably—highlighting the persistence of the negative intergroup attitudes.
For the final stage, the intergroup integration phase, researchers crafted numerous non-competitive situations where the two would have to work together to achieve common objectives—superordinate goals—in an effort to reconcile the groups’ attitudes and behaviors. For example, the camp truck was stuck and they all had to pull the vehicle to get it to start.
Soon enough, the division of “us” versus “them” disappeared, along with the intergroup hostility. The boys ended their stay with positivity—leaving camp on one bus.
In the end, using cooperation to accomplish shared goals may dissolve perceived enemies into friends and break down social barriers that could fuel conflict.
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Q1: What is the realistic conflict theory demonstrated in the Robbers Cave experiment?
Realistic conflict theory posits that groups competing for scarce resources—whether perceived or real—develop competitive tendencies and negative attitudes toward each other. In the Robbers Cave study, researchers assigned 22 boys to two groups and introduced competition through tournaments. The resulting hostility, name-calling, and vandalism confirmed that resource competition intensifies intergroup conflict and negative out-group perceptions.
Q2: How did the boys' behavior change during the intergroup friction phase at Robbers Cave?
During the intergroup friction phase, the Eagles and Rattlers engaged in increasingly hostile behaviors including name-calling, humiliation, flag burning, cabin raids, and property theft. As competition intensified through tournaments and point-keeping, even less-active campers participated in derogatory behavior. The researchers observed that losing groups' frustrations escalated from verbal aggression to physical retaliation and vandalism.
Q3: What are superordinate goals and how did they reduce conflict at Robbers Cave?
Superordinate goals are objectives requiring groups to work together cooperatively to succeed. At Robbers Cave, researchers introduced non-competitive situations like pushing a stuck truck and pooling money for a movie. These shared goals eliminated the us-versus-them mentality, dissolved intergroup hostility, and transformed perceived enemies into friends. Boys ended camp riding together on one bus, united by their common camp identity.
Q4: How does decategorization help reduce intergroup conflict according to Robbers Cave research?
Decategorization occurs when individuals interact one-on-one and learn personal details about out-group members rather than viewing them as enemy factions. Through superordinate goals at Robbers Cave, boys discovered each other's favorite games, sports, and home lives. This process transformed abstract group stereotypes into recognition of distinct individuals, weakening negative prejudice and discrimination implicit in group-based thinking.
Q5: What is recategorization and why did it matter when the Robbers Cave groups united?
Recategorization involves groups redefining their identity to include former out-group members under a shared superordinate category. When Eagles and Rattlers worked together at Robbers Cave, they shifted from separate cliques to members of the same camp solving collective problems. This recategorization extended further when campers sang Oklahoma together, uniting as both camp members and state residents, dissolving previous group boundaries.
Q6: How are Robbers Cave principles applied to reduce conflict in modern workplaces and schools?
Healthcare mergers and desegregated schools apply Robbers Cave lessons by implementing superordinate goals. In hospitals, emphasizing stellar patient care reduces us-versus-them thinking among merged staff. In schools, extracurricular activities like football teams create shared identity and camaraderie across racial and ethnic groups. Highlighting each individual's unique contribution reinforces collective identity and reduces intergroup hostility.
Q7: Why did researchers manipulate the treasure hunt outcome in the Robbers Cave experiment?
Researchers controlled the treasure hunt—the final tournament event—to keep point totals tight and maintain both groups' motivation to compete. This manipulation ensured sustained engagement throughout the intergroup friction phase. By strategically determining victory and defeat, researchers could observe how winning and losing affected group attitudes before introducing superordinate goals in the integration phase.