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The Millon Adolescent Clinical Inventory-II (MACI-II®)

By Theodore Millon, PhD, DSc, Robert Tringone, PhD, Seth Grossman, PsyD, Carrie Millon, PhD

Unlike many other psychological tests which were developed for adults and adapted for adolescents, the Millon Adolescent Clinical Inventory-II was specifically created to address the unique concerns, pressures, and situations adolescents face. Anchored in Dr. Theodore Millon’s personality theory, this inventory helps assess personality patterns, self-reported concerns, and clinical symptoms in adolescents being evaluated or treated in a variety of mental health settings. At 160 items, the MACI-II is much shorter than comparable instruments and is almost self-administering. The great majority of teens can complete the inventory in approximately 20 minutes, minimizing resistance among the population for which the test is intended. As with the MCMI-IV, this instrument has seen the development of a series of facet subscales (the MACI-II Grossman Facet Scales) to further refine the clinical domains that call for the clinician's special attention.

Age Group: 13 to 18
Reading level: 4th grade
Administration Time: 25–30 minutes
Assessment Length: 160 items
Administration Options: Manual entry, on-screen administration
Report Options: Interpretive and Profile reports
Languages: English and Spanish

New Features of the MACI-II

  • New and updated test items
  • New and improved narrative report content that is simpler and better integrates results with current therapeutic practice while linking to personalized treatment
  • Three new Clinical Syndrome scales (Disruptive Mood Dysregulation, Post Traumatic Stress, and Reality Distortions), to reflect current clinical presentations and providing deeper understanding of clients presenting with these concerns
  • Full normative update (N = 1,143, combined gender), more closely representing the current clinical adolescent population
  • Updated Grossman Facet Scales, including three new scales
  • New digital end-to-end workflow with the introduction of a digital manual option via Q-global, Pearson’s web-based scoring and reporting platform


Validity Scales

  • Scale V - Invalidity
  • Scale W - Inconsistency
  • Scale X - Response Negativity

Personality Patterns

  • 1 - Introversive
  • 2 - Inhibited
  • 3 – Submissive
  • 4 - Dramatizing
  • 5 - Egotistic
  • 6A – Unruly
  • 6B – Forceful
  • 7 - Conforming
  • 8A - Discontented
  • 8B – Aggrieved
  • 9 - Borderline Tendency

Clinical Syndromes

  • AA - Binge-Eating Patterns
  • BB - Substance-Abuse Proneness
  • CC - Delinquent Predisposition
  • DD - Anxious Feelings
  • EE - Depressive Affect
  • FF - Suicidal Tendency
  • GG - Disruptive Mood Dysregulation

Ordering the MACI

The MACI-II is available through Pearson Clinical.