The psychometric qualities of the intercultural readiness check (IRC) were evaluated against an existing instrument for multicultural effectiveness: the Multicultural Personality Questionnaire (MPQ). The IRC has scales for intercultural sensitivity, intercultural communication, intercultural relationship building, conflict management, leadership and tolerance of ambiguity. A sample of in majority employees who were trained for an international position (N = 137) participated in the study. The IRC scales were moderately to sufficiently reliable. Correlations with the MPQ scales were in the expected direction. Both instruments were equally strongly related to international inspiration, with open-mindedness (MPQ) and intercultural sensitivity (IRC) as most important predictors. The IRC scales explained more variance in international experience.