Description of the Questionnaire

Description

The NEO Personality Inventory-3 (NEO-PI-3) is a comprehensive psychometric instrument designed to assess personality according to the Five-Factor Model (FFM). It represents an updated version of the earlier NEO personality inventories and provides a detailed assessment of both broad personality domains and their more specific underlying traits.

The NEO-PI-3 consists of 240 items and assesses five major personality dimensions: Neuroticism, Extraversion, Openness to Experience, Agreeableness, and Conscientiousness. Each broad domain is further divided into six facets, resulting in a total of 30 specific personality facets.

Aim

The primary aim of the NEO-PI-3 is to provide a comprehensive and multidimensional assessment of relatively stable personality characteristics. It allows the development of a detailed personality profile, offering information not only about the five major personality domains but also about the specific facets that contribute to each domain.

In the context of the Greek version, the main objective of the standardization study was to evaluate the reliability, validity, and factorial structure of the Greek adaptation of the NEO-PI-3 in the general Greek population.

The Five Personality Domains

Neuroticism reflects the tendency to experience negative emotions such as anxiety, worry, emotional instability, vulnerability, and psychological distress.

Extraversion refers to sociability, activity, assertiveness, positive emotionality, and the tendency to seek interpersonal interaction and stimulation.

Openness to Experience reflects curiosity, imagination, receptiveness to new ideas and experiences, intellectual interests, and aesthetic sensitivity.

Agreeableness concerns interpersonal characteristics such as trust, cooperation, empathy, altruism, and the tendency to maintain harmonious relationships with others.

Conscientiousness reflects organization, responsibility, self-discipline, persistence, goal-directed behavior, and the ability to regulate behavior in pursuit of objectives.

Structure and Administration

The NEO-PI-3 includes 240 statements rated on a five-point Likert-type response scale ranging from strong disagreement to strong agreement.

The instrument provides scores for the five broad personality domains and the 30 corresponding facets, allowing a detailed analysis of individual personality characteristics.

Because of its comprehensive structure, the NEO-PI-3 provides considerably more detailed personality information than shorter measures of the Big Five.

Standardization in the Greek General Population

The study entitled “Standardization of the NEO-PI-3 in the Greek general population” examined the psychometric properties of the Greek version of the instrument.

The Greek adaptation was evaluated in a general-population sample in order to determine whether its psychometric structure was consistent with the theoretical Five-Factor Model and with findings obtained from the original and other international versions of the NEO-PI-3.

The findings generally supported the reliability and applicability of the Greek version. Most facet scales demonstrated satisfactory levels of internal consistency, while factorial analyses provided substantial support for the expected five-factor structure.

The overall factorial organization of the Greek version showed meaningful correspondence with the structure identified in international normative samples, supporting its suitability for use in Greek-speaking populations.

Scoring and Interpretation

The NEO-PI-3 produces separate scores for each of the five major personality domains and their 30 facets.

Rather than producing a single overall personality score, the instrument generates a multidimensional profile that reflects the relative prominence of different personality characteristics.

Raw scores may be converted into standardized scores using appropriate normative data. Interpretation should therefore consider both the broader domains and the pattern of facet-level scores.

A comprehensive interpretation of the profile can provide valuable information regarding emotional functioning, interpersonal style, openness to experiences, behavioral regulation, organization, and goal-directed tendencies.

Applications

The NEO-PI-3 can be used in personality research, clinical psychology, psychological assessment, counseling, and other research or applied settings in which a detailed evaluation of personality characteristics is required.

Its multidimensional structure makes it particularly useful for studies examining associations between personality and variables such as psychological well-being, mental health, interpersonal functioning, occupational behavior, coping strategies, health-related behaviors, and quality of life.

The availability of a standardized Greek version is particularly important because it provides culturally and linguistically relevant psychometric evidence for the use of the instrument within the Greek population.

Psychometric Considerations

The Greek standardization findings support the general psychometric adequacy of the instrument, although, as with any personality measure, interpretation should take into account the characteristics of the population being assessed and the context in which the questionnaire is administered.

When the instrument is used for research purposes, researchers should report the reliability indices obtained in their own sample and, where relevant, examine the factorial structure and measurement properties of the specific version employed.

Conclusions

The NEO Personality Inventory-3 (NEO-PI-3-240) is a comprehensive personality assessment instrument grounded in the Five-Factor Model. Its 240-item structure and assessment of 30 specific facets provide a detailed and multidimensional representation of personality.

The standardization of the NEO-PI-3 in the Greek general population provides important psychometric support for its application in Greek-speaking samples. The Greek version can therefore serve as a valuable instrument in psychological, clinical, and research contexts where a detailed assessment of personality is required.

References

Fountoulakis, K. N., et al. (2014). Standardization of the NEO-PI-3 in the Greek general population. Annals of General Psychiatry, 13, 36.

McCrae, R. R., & Costa, P. T. Jr. (2010). NEO Inventories: Professional Manual. Psychological Assessment Resources.

Costa, P. T. Jr., & McCrae, R. R. (1992). NEO PI-R Professional Manual. Psychological Assessment Resources.