Date of Submission


Degree Type


Degree Name

Doctor of Psychology (PsyD)



Department Chair

Robert A. DiTomasso, Ph.D., ABPP

First Advisor

Robert A. DiTomasso, Ph.D., ABPP, Chairperson

Second Advisor

Lance Couturier, Ph.D.

Third Advisor

Christopher Royer, Psy.D.


The present study proposed to advance the treatment and assessment of anger disorders by exploring the properties of the Mahan and DiTomasso Anger Scale (MAD-AS). Previous research of the reliability, validity, and factor structure of the MAD-AS was conducted with inpatient (Mahan, 2001) and outpatient participants (Beardmore, 2003) . In the present study a psychometric investigation was undertaken utilizing 300 male incarcerated offenders. The MAD-AS correlated positively with the presence of antisocial and borderline personality disorders and with violent offenses. Those inmates with a history of violent offenses scored significantly higher than those convicted of nonviolent offenses on the MAD-AS. The MAD-AS possessed sound psychometric properties in terms of reliability and validity. Results indicated the MAD-AS reflects the multidimensional quality of anger including its cognitive, physiological, and behavioral components. In clinical forensic work the MAD-AS may assist in identifying dynamic criminogenic needs, selecting interventions to address those needs, monitoring treatment outcomes, and assessing risk factors for recidivism.