Are critical items "critical" for the MMPI-A

Area of Science:

• Psychological assessment
• Adolescent psychology
• Personality testing

Background:

• Critical items are used in psychological assessments to identify specific concerns.
• The Minnesota Multiphasic Personality Inventory-2 (MMPI-2) utilizes critical items effectively for adult populations.
• The utility of critical items for the adolescent version (MMPI-A) requires examination.

Purpose of the Study:

• To investigate the potential usefulness of critical items for the Minnesota Multiphasic Personality Inventory-Adolescent (MMPI-A).
• To compare endorsement frequencies of critical items between adolescent and adult samples.
• To evaluate the applicability of adult-based critical item methodologies to adolescent populations.

Main Methods:

• Analysis of endorsement frequency data for critical items from the Koss-Butcher (1973) and Lachar-Wrobeli (1979) scales.
• Comparison of data across adult normative/clinical samples (MMPI-2) and adolescent normative/clinical samples (MMPI-A).

Main Results:

• Adolescents, both normal and clinical, endorsed critical items more frequently than normal adults.
• Significant differences in endorsement frequencies between normative and clinical groups were consistent for MMPI-2 but not typically for MMPI-A.
• Clinical adolescents did not consistently endorse critical items more frequently than normal adolescents.

Conclusions:

• Constructing critical item lists for the MMPI-A using adult methodologies based on endorsement frequency differences may be challenging.
• The concept of
• Reliability and validity of critical items may be limited in adolescent populations.