Description

The International Personality Item Pool (IPIP) is a collection of open-access psychometric items used for personality assessment. It was created to provide personality measurement tools without the restrictive usage rights and high costs of commercial personality tests.

Objective

The main goal of the IPIP is to offer a reliable, flexible, and accessible tool for personality assessment that can be used in research, educational settings, and clinical practice. It allows researchers and professionals to create customized personality questionnaires that meet their specific needs.

Analysis

The analysis of IPIP data involves the evaluation of participants’ responses to a series of statements related to various aspects of personality. These statements are usually based on Likert scales, where participants indicate the extent to which they agree or disagree with each statement.
The main dimensions of personality assessed through the IPIP include:
Extraversion
Agreeableness
Conscientiousness
Emotional Stability
Openness to Experience

Scoring

Scoring in the IPIP is done by assigning values to participants’ responses for each statement. The total scores for each dimension are calculated by adding the scores of the individual statements that belong to that dimension. The average scores can be compared to population norms to determine where an individual stands relative to the general population.

References

Goldberg, L. R., Johnson, J. A., Eber, H. W., Hogan, R., Ashton, M. C., Cloninger, C. R., & Gough, H. G. (2006). The International Personality Item Pool and the future of public-domain personality measures. Journal of Research in Personality, 40(1), 84-96.
Maples, J. L., Guan, L., Carter, N. T., & Miller, J. D. (2014). A test of the International Personality Item Pool representation of the Revised NEO Personality Inventory and development of a 120-item IPIP-based measure of the Five-Factor Model. Psychological Assessment, 26(4), 1070-1084.
Goldberg, L. R. (1999). A broad-bandwidth, public-domain, personality inventory measuring the lower-level facets of several five-factor models. In I. Mervielde, I. Deary, F. De Fruyt, & F. Ostendorf (Eds.), Personality psychology in Europe (Vol. 7, pp. 7-28). Tilburg University Press.