Abstract
Research suggests that higher extraversion often benefits individuals at work, yet findings at the team level are mixed. The “extravert ideal”—the belief that extraversion is inherently advantageous—can bias teams toward privileging highly extraverted members, marginalizing those lower in extraversion and limiting diverse contributions. This concern is salient in South Korea, where hiring practices have favored extraverted candidates, and is echoed in Western contexts that link extraversion to leadership potential (Cain, 2012). Drawing on the categorization–elaboration model, we argue that high procedural justice mitigates such biases by ensuring fair participation, allowing diverse perspectives to be elaborated and integrated. From this perspective, extraversion diversity—rather than homogeneity—enhances team creativity. Using a multisource, multiwave survey of 84 South Korean teams, we find support for these predictions and highlight the need for inclusive climates that leverage extraversion diversity rather than reinforcing the extravert ideal.
•Extraversion diversity enriches team perspectives and fosters information elaboration.•Procedural justice climate moderates the effect of extraversion diversity on elaboration.•Team information elaboration mediates the link between extraversion diversity and creativity.•Inclusive and fair team climates amplify the creative benefits of personality diversity.