<p><em>The purpose of this study was to assess the cultural invariance of the Extended Objective Measure of Ego-Identity Status (EOM-EIS) Questionnaire across three ethnic groups (African-Americans, Caucasians, and Latinos). </em></p> <p><em>The total sample consisted of 289 undergraduate</em><em>s</em><em> from a comprehensive doctoral university in the Southeastern United States. Results of the chi-squared test of goodness-of-fit indicated that the sample reflected the university’s student body proportionally by gender, ethnicity, and academic major. To assess if the factor structure of the EOM-EIS operated equivalently across the three ethnic groups, a multi-group confirmatory factor analysis was conducted. Results indicated that EOM-EIS </em><em>was</em><em> invariant across the ethnic groups. </em></p>