A comparison of the millon behavioral medical diagnostic and millon behavioral health inventory with medical populations.

There is a lack of normative data on broadband omnibus types of personality tests with medical populations. In fact, the only two tests normed on medical populations are the Millon Behavioral Medicine Diagnostic (MBMD) and the Millon Behavioral Health Inventory (MBHI). The internal consistency, test-retest reliabilities, and validity studies of these instruments are reviewed and compared in an effort to aid clinicians in discerning their relative psychometric strengths and weaknesses. Due to the lack of validity studies with the MBMD and the fact that reliability limits the ceiling of validity coefficients, the MBMD has yet to meet the challenges it was designed to meet. Implications for practice are addressed.