Contemporary military operations require the US to partner with coalition nations, so that commanders must make effective decisions for multinational teams. The effectiveness of decision-making may depend on various factors. General decision-making competence and personality traits that promote interpersonal functioning may be advantageous in the team context. Sociocultural factors such as a strong nationalistic social identity may be harmful to decision-making in multinational teams. The current study ( N=696) examined correlates of a Situation Judgment Test (SJT) for multicultural decision-making ability in multiple samples. Predictors of better SJT performance included general decision-making ability, low nationalism, and various personality traits. Multivariate analyses discriminated multiple, independent predictors. Findings suggest assessment of the various strengths and weaknesses that shape the individual’s decision-making may inform training for multicultural competence.
Supplemental Material for Individual Differences and Fitting Methods for the Two-Choice Diffusion Model of Decision Making