Mental health practitioners' positions on the etiology and treatment of mental illness have traditionally been studied from a unidimensional perspective, assuming a bipolar attitudinal continuum ranging from psychosocial to medical ideology. This assumption is tested from the responses of 82 psychologists and 69 psychiatrists to the newly developed 63-item, 6-point Likert scale, Mental Health Questionnaire (MHQ). Factor analysis detected 6 distinctive factors: biogenetic psychopathology, psychosocial perspectives, medical ideology, diagnosis, drug treatment, and sociocultural values.