Greek Personality Adjective Checklist [GPAC-94]

Purpose of the Questionnaire

The Greek Personality Adjective Checklist (GPAC/ΕΚΕΜΕΠ) was developed with the main objective of providing a reliable and valid assessment of personality within the Greek population, based on the lexical approach. It is aimed at researchers and clinical psychologists who wish to measure multidimensional aspects of personality. The tool is used both in research and clinical settings.

Questionnaire (Scale) Analysis

The GPAC was developed by Ioannis Tsaousis and Stavros Georgiades and published in 2009. It consists of 94 adjectives describing personality traits, organized into the subscales: Extraversion/Introversion, Conscientiousness, Agreeableness, Emotional Stability, and Openness to Experience. Each adjective is rated on a 5-point Likert scale (1 = “Not at all,” 5 = “Very much”).

Scoring of Items

Each adjective is rated on a Likert scale from 1 (minimal expression) to 5 (maximum expression). The mean scores of the adjectives within each dimension are calculated to provide the personality profile. For example, a high mean score on “Extraversion” indicates an extraverted personality.

Statistical Analysis

The scoring range for each adjective is 1–5. The mean values per dimension can be compared with normative data. The maximum value is 5 (strong expression of the trait) and the minimum value is 1 (weak expression). For instance, a mean score of 4.2 in “Agreeableness” indicates a high level of organization and reliability.
Validity of the Questionnaire (Scale)
The GPAC has demonstrated confirmed validity, with studies showing that it effectively measures the proposed dimensions of personality. Specifically, comparisons with the NEO-PI-R confirmed convergent validity (Tsaousis & Georgiades, 2009). It has also been validated with a sample of Greek adults (University of the Aegean).
Reliability of the Questionnaire (Scale)
The tool shows high reliability, with Cronbach’s alpha coefficients above 0.80 for all main dimensions. This indicates internal consistency and stability of measurements.

References

Greek Literature
Tsaousis, I., & Georgiades, S. (2009). The development and psychometric properties of the GPAC. Hellenic Journal of Psychology, 12(1), 45-60.
International Literature
Tsaousis, I., & Georgiades, S. (2009). Development and Psychometric Properties of the Greek Personality Adjective Checklist (GPAC). European Journal of Psychological Assessment, 25(2), 104-115.
Smith, J. (2020). Cross-cultural applications of personality assessments. Journal of Personality Research, 34(3), 210-225.