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Millon Clinical Multiaxial Inventory

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Samantha Ferido

on 18 March 2015

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Transcript of Millon Clinical Multiaxial Inventory

MCMI-III
Small inventory to conduct a simple diagnostic that's applicable to all kinds of treatment settings, yet large enough to address a wide range of clinically relevant behaviors.
MCMI: Format
-self-assessment>18 yo
-175 True/False questions
-20-30 min completion
-reading level at 6th grade
*only for those suspect of suffering from a mental disorder
Scores Using Base Rates
Scales
Millon Clinical Multiaxial Inventory
Sam Ferido
Outline
-Creation of an assessment based on personality
-Integration of the evolutionary theory into the test
-Updated MCMI-III, Format and Scoring
-Benefits and Limitations
Background
Theodore Millon
-Leigh University
-University of Illinois
-developed his evolutionary theory of personality
-->published the Millon Clinical Multiaxial Inventory in 1977
MCMI-III published in 1994
-most frequently used personality diagnostic assessment
-Rorschach & MMPI-2
Integrating the Theory
Multiple Axes
Loevinger's Tripartite Model
Most or all psychiatric conditions could be explained as an extension of personality.
3 axes that make up the assessment based on the evolutionary theory of personality
1) Existence: pleasure vs pain
2) Adaptation: active vs passive
3) Replicate: self vs others
1) Theoretical-Substantive Validation:
2) Internal-Structural Validation:
3) External-Criterion Validation:
Items evaluated to best fit DSM and Millon's evolution theory of personality
Evaluated the internal structure to ensure results were consistent
Evaluated measures that were clinically sound with their representation of the condition
-->Strengths of each phase of the tripartite model increases the generalizability of the end product.
Strict validity measures exempt items that may skew the parameters, yet still satisfy multiple requirements.
-changes that correspond with DSM-IV
-distinguishing between Axis I & II
-gender and ethnicity norms
-new validity scale
-able to see the severity of pathology
-computer analysis
-Grossman Facet scale
More accurate representations of the skewed distribution of personality disorders,
whereas Z scores do not consider differences in prevalence amongst different disorders.
Scoring Scale from 1-115
85+ most characteristics of disorder present
35-non-clinical
60-standard clinical population
*<75 considered not clinically significant
75-84-some characteristics present
Modifying Indices

-3 items of implausible nature
Disclosure (X), Desirability (Y),
and Debasement (Z)
>10 items omitted=invalid
Severe Personality Pathology Scale
Schizotypal, Borderline, Paranoid
Clinical Personality Pattern Scale
Clinical Syndrome Scale
Grossman Facet Scales
Benefits
1) Based on a comprehensive theory of psychopathology
2) Reflects criteria used in DSM-IV
3) Provides accurate diagnostic because of a large representation sample
4) Improved validation process
5) Easy and quick assessment
6) Assessment and answer sheet provided together
Limitations
1) Cannot be used for non-clinical population
2) Consistent problem with items overlapping
--> Saulsman (2011) also points out the anxiety scale's poor validity and the test's difficulty of discriminating anxiety from depression
-->Blais, et al. (2003) questions discriminant validity of MCMI-III's anxiety and avoidant personality scales
3) Sample under-represents certain populations
4) Limited amount of reasearch on MCMI-III and it's validity scales
References
Figure 1: Sample questions from MCMI-III. Adapted from Millon Clinical Multiaxial Inventory-III (MCMI-III) [PowerPoint slides] by Aosved, A
Figure 2. Summary of MCMI-III Scales. Adapted from New directions in interpreting the millon clinical multiaxial inventory-III (MCMI-III) by Craig, R.
Table 1. MCMI-III Raw and base score report sample. Adapted from New directions in interpreting the millon clinical multiaxial inventory-III (MCMI-III) by Craig, R.
Table 2. MCMI-III Facet scale report sample. Adapted from New directions in interpreting the millon clinical multiaxial inventory-III (MCMI-III) by Craig, R.
Review
1) MCMI was developed with an evolutionary focus to assess characteristics that are visible within a specific clinical population.
2) MCMI has multiple axis and validity scales that are effective in accurately diagnosing clinical personality traits most of the time.
3) Easy and quick to administer, though recommended only for clinical patients/those suffering from a mental disorder.
4) MCMI-III is still relatively new and lacks research to support its validity.
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