Mini International Personality Item Pool (MINIIPIP)
Background
The International Personality Item Pool (IPIP) is a public-domain, scientific collaborative resource providing over 3,300 free, non-proprietary items and 250+ scales for measuring personality traits. Psychologist Lewis Goldberg, who coined the term 'Big Five' for the most common five factors of personality (Extraversion, Agreeableness, Conscientiousness, Neuroticism, Imagination), founded IPIP in 1996. His 50-item IPIP survey from 1992 is widely used across the globe.
The MiniIPIP is a 20-item survey using a subset of the 50-item IPIP survey. It was introduced by M. Brent Donnellan and colleagues in 2006 as a quick alternative to the 50-item version to help with participation fatigue. Despite its shorter length, it maintains acceptable psychometric properties and high test-retest reliability, making it a popular choice for large-scale longitudinal studies. The Mini-IPIP is further used in clinical and health research to identify how personality traits influence patient experiences and health outcomes. Its brevity makes it particularly suitable for patients who may be too ill or fatigued for longer assessments.
Task Procedure
Participants work on twenty self-report descriptions that cover five personality domains (Extraversion, Agreeableness, Conscientiousness, Neuroticism, Imagination). To answer each statement, participants are instructed to describe themselves honestly in relation to other people of the same gender and age. Each of the five domains is assessed with 4 statements (e.g. "I am the life of the party") and each statement is rated on a 5-point Likert scale from 'very inaccurate' to 'very accurate'.
What it Measures
The MiniIPIP is a Big5-personality measure
Psychological Domains
- Personality Traits: Enduring, consistent patterns of thoughts, feelings, and behaviors that define an individual's unique disposition.
Main Performance Metrics
- Five Sub Scores: Each of the five personality traits receives a score from 1 to 20. The higher the score, the higher a participant scores on a particular personality trait
Psychiatric Conditions
The MiniIPIP has been used with the following patient groups
- Oncology and Chronic Illness
- Substance Abuse and Addiction
- Post-Traumatic Stress Disorder (PTSD)
- Cognitive Decline
A 20-item measure of the Big Five factors of personality introduced by Donnellan et al (2006)
References
Search Google Scholar for peer-reviewed, published research using the Inquisit Mini International Personality Item Pool (MINIIPIP).
IPIP item pool and general information about IPIP surveys: https://ipip.ori.org
Goldberg, L. R. (1992). The development of markers for the Big-Five factor structure. Psychological Assessment, 4, 26-42.
Donnellan, M. B., Oswald, F. L., Baird, B. M., & Lucas, R. E. (2006). The Mini-IPIP scales: Tiny-yet-effective measures of the Big Five factors of personality. Psychological Assessment, 18, 192-203.