Abstract
In research on mental health disorders, Southeast Asian ethnic groups have been aggregated into a single, undifferentiated category referred to as Southeast Asians. This onegroup approach risks the misrepresentations of the mental health needs of each of the groups involved in the category. As such, this study tested assumptions of homogeneity among Southeast Asians. A total of 422 Southeast Asians-including Cambodians, Laotians, Miens, and Vietnamese-were compared in the four mental health domains of emotional distress, psychotic symptoms, antisocial behaviors, and community living. The results confirmed the diversity in mental health among Southeast Asians and the need for multiethnic agencies and the multicultural education of clinicians.