A multilevel test of Allport’s contact conditions

This study tests the relative predictive power of Allport’s contact conditions in reducing intergroup bias with a multilevel model. In addition, it is argued that a fourth contact condition, cooperation, mediates the relationships between the first three contact conditions (authority support, equal status, goal interdependence) and intergroup bias, rather than being an independent predictor. A multilevel model with N = 266 individuals within k = 48 groups shows that equal status and goal interdependence negatively predict intergroup bias, with goal interdependence as the stronger predictor. These effects are partially mediated by cooperation. However, while authority support is predictive of intergroup cooperation, no relationship with intergroup bias emerged. Theoretical and practical implications of the relative predictive power of contact conditions and the mediation by cooperation are discussed.