Measuring beliefs in the instrumentality of ethnic diversity: Development and validation of the Pro

In general, diversity beliefs are beliefs about the instrumentality of diversity for the functioning of groups. Focusing on a societal level, recent social-psychological research addressed pro-diversity beliefs as individuals’ beliefs that diversity is beneficial for the progress of society. Despite the growing interest in societal pro-diversity beliefs, no systematically validated scale measuring pro-diversity beliefs is available to date. We addressed this shortcoming and studied the reliability and validity of the newly developed Pro-Diversity Beliefs Scale (PDBS) across four samples. Results indicate that the PDBS is reliable, adequately distinct from related and established scales, and valid in predicting external criteria such as outgroup attitudes or intergroup threat