Brief Description

This questionnaire assesses five core dimensions of personality, derived from factor analytic research: extraversion, agreeableness, conscientiousness, emotional stability, and openness/autonomy. Each dimension encompasses a wide range of traits and characteristic behavioral tendencies.

Purpose

Based on the theoretical and empirical model that personality can be described using five broad factors, the tool aims to provide a valid and reliable description of an individual’s personality. It is useful in contexts such as counseling, career guidance, research, and education.

Scoring Method

The inventory includes 100 statements. Participants rate each statement on a five-point scale (1 = does not describe me at all, to 5 = describes me perfectly). Each of the five personality factors is measured by 20 specific items. Final scores for each factor range from 20 to 100.

Validity

The instrument’s validity is supported by its theoretical foundation, which aligns with the widely accepted Five-Factor Model of Personality. Empirical validation through statistical analysis has confirmed its structure, and its dimensions have been supported across cultures.

Reliability

Although specific reliability figures for the Greek adaptation are not reported in the source, international studies and the original development research indicate high internal consistency (typically Cronbach’s α > 0.80 for each factor). The Greek version was applied to a sample with satisfactory applicability.

Data Analysis and Usage

The Greek adaptation was tested on a sample of 100 university students. The inventory can be used to profile personality traits, understand individual differences, and explore correlations with other psychological characteristics or behaviors. It is appropriate for research, guidance, and educational interventions.

Key References

Hendricks, A. A. J., Hofstee, W. K., Boele de Raad, B., & Angleiter, A. (1995). The Five Factor Personality Inventory. Unpublished Document, University of Groningen.