Personality Assessment and Testing Methods

Overview of Personality Assessment

  • Personality assessments are used for employment screening (specifically in high-stress roles like law enforcement), clinical diagnosis, legal custody battles, and criminal cases.

  • Primary methods include objective self-report inventories and subjective projective tests.

Questions & Discussion

  • Question: Regarding the college friends Roberto (shy/kind), Mikhail (impulsive leader), and Nat (methodical/thoughtful): "Of these three, who would make the best police officer? What qualities and personality factors make someone a good police officer? What makes someone a bad or dangerous police officer?"

  • Response: Law enforcement agencies use personality testing to screen candidates for stressful environments to ensure they hire the right individuals and identify potential risks.

Self-Report Inventories

  • Utilize multiple-choice items or Likert scales (typically ranging from 11 to 55).

  • Pros/Cons: Easy to administer and cost-effective, but susceptible to social desirability bias or "faking good."

The Minnesota Multiphasic Personality Inventory (MMPI)

  • MMPI (19431943): Original version with 504504 true/false questions based on a limited sample of Minnesota farmers and psychiatric patients.

  • MMPI-2 (19891989): Updated with 567567 questions and a representative national sample for better standardization.

  • MMPI-2-RF (20082008): A shorter version with 338338 questions, taking approximately 1/21/2 the time to complete.

  • Scales: Produces a clinical profile across 1010 scales (e.g., depression, paranoia, schizophrenia) and includes validity scales like the Lie Scale ("L" Scale) consisting of 1515 items to detect intentional underreporting of problems.

  • Officer Study: Research by Beutler, Nussbaum, and Meredith (19881988) found that after 22 to 4 years4\,\text{years} on the job, police officers showed increased vulnerability to alcoholism and anxiety.

Projective Testing Methods

  • Relies on the Freudian defense mechanism of projection; subjects interpret ambiguous stimuli to reveal unconscious desires and fears.

  • Rorschach Inkblot Test (19211921): Developed by Hermann Rorschach; uses symmetrical inkblots. Validated specifically when using the Exner scoring system.

  • Thematic Apperception Test (TAT): Developed in the 1930s1930s by Henry Murray and Christiana Morgan; involves telling stories about 8−128-12 ambiguous pictures.

  • Rotter Incomplete Sentence Blank (RISB): Developed by Julian Rotter in 19501950; consists of 4040 incomplete sentences typically completed in 20 minutes20\,\text{minutes}.

Culturally Specific Assessments

  • Traditional tests often show cultural bias, leading to low identification or shorter story lengths in minority groups.

  • Contemporized-Themes Concerning Blacks Test (C-TCB): Developed by Robert Williams (19721972); features 2020 color images depicting African-American lifestyles.

  • TEMAS (Tell-Me-A-Story): Created by Constantino (19821982) to be culturally relevant for Hispanic youth through specific minority-culture imagery and themes.