Description

The Five Factor Personality Inventory (TFFPI-100) is a psychometric instrument designed to assess the five fundamental dimensions of personality based on the widely accepted Five-Factor Model of Personality.

The inventory evaluates five broad personality factors: Extraversion, Agreeableness, Conscientiousness, Emotional Stability, and Openness/Autonomy. Each dimension represents a broad range of personality characteristics, behavioural tendencies, and individual differences.

Objective

The main objective of the TFFPI-100 is to provide a valid and reliable description of an individual’s personality characteristics based on the five-factor personality framework.

The instrument can be used in counselling, career guidance, educational settings, and psychological research to understand personality profiles and individual differences.

Structure and Content

The TFFPI-100 consists of 100 statements assessing the five major personality dimensions.

The assessed dimensions include:

Extraversion, which refers to sociability, energy, and tendency toward interpersonal engagement.

Agreeableness, which reflects interpersonal orientation, cooperation, and consideration of others.

Conscientiousness, which concerns organization, responsibility, persistence, and goal-directed behaviour.

Emotional Stability, which reflects emotional regulation and the tendency to experience lower levels of emotional distress.

Openness/Autonomy, which relates to curiosity, flexibility, independence, and openness to experiences.

Each personality factor is assessed through 20 specific items.

Scoring Method

Participants rate each statement using a five-point Likert scale ranging from:

1 = Does not describe me at all

to

5 = Describes me perfectly.

Scores are calculated separately for each of the five personality factors. Each factor has a possible score range from 20 to 100 points, based on the 20 items corresponding to each dimension.

Higher scores indicate a stronger presence of the characteristics represented by each personality factor.

Data Analysis and Use

The TFFPI-100 can be used to create personality profiles, examine individual differences, and investigate relationships between personality characteristics and other psychological variables or behaviours.

Statistical analysis may include descriptive statistics, reliability analysis, factor analysis, and correlation studies examining associations between personality dimensions and educational, occupational, or psychological outcomes.

The Greek adaptation of the inventory was tested on a sample of 100 university students, supporting its applicability in research and educational contexts.

Validity

The validity of the TFFPI-100 is supported by its theoretical foundation, which is consistent with the established Five-Factor Model of Personality.

Empirical validation through statistical analyses has confirmed the factor structure of the instrument, and the five dimensions have demonstrated applicability across different cultural contexts.

Reliability

The reliability of the TFFPI-100 is supported by international research and original development studies. These studies indicate satisfactory internal consistency, with reported Cronbach’s alpha coefficients typically exceeding α > 0.80 for each personality factor.

Although specific reliability coefficients for the Greek adaptation are not reported in the available source, the Greek version has demonstrated satisfactory applicability in research settings.

Applications

The Five Factor Personality Inventory can be applied in personality assessment, educational research, career counselling, organizational psychology, and studies examining personality-related differences in behaviour.

It is particularly useful for understanding personality profiles, predicting behavioural tendencies, supporting career decisions, and investigating relationships between personality and psychological outcomes.

References

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