Myers-Briggs Type Indicator [MBTI-95 – Form G]

Description and Purpose

The Myers-Briggs Type Indicator (MBTI) – Form G is a personality assessment instrument attributed in the provided material to K. Briggs and I. Myers-Briggs, with 1977 identified as the year of development of this version.

The primary purpose of the MBTI is to describe the personality of individuals within the general population and to facilitate a better understanding and acceptance of their personality characteristics.

Rather than focusing on psychopathology, the instrument provides a framework for describing differences in personality preferences and classifying individuals according to characteristic patterns.

Theoretical Background

The MBTI is based on Carl Jung’s theory of psychological types. According to the source document, personality is examined through four bipolar dimensions representing different preferences in psychological functioning.

The combination of preferences across these dimensions allows individuals to be classified into one of 16 personality types.

This typological framework provides a structured approach to describing individual differences in how people orient themselves, process information, make judgments, and relate to their environment.

Personality Dimensions

The MBTI examines personality through four bipolar dimensions:

Extraversion – Introversion (E–I): Represents differences in the orientation of attention and engagement toward the external or internal world.

Sensing – Intuition (S–N): Concerns different preferences for perceiving and processing information.

Thinking – Feeling (T–F): Reflects different preferences in evaluating information and making decisions.

Judging – Perceiving (J–P): Concerns different preferences regarding organization, structure, and interaction with the external environment.

The combination of these four dimensions forms the basis for the 16 personality types identified by the MBTI.

Structure of the Questionnaire

The MBTI Form G consists of 95 items, which are used to classify an individual into one of the 16 personality types.

According to the source document, the questionnaire contains two types of items:

Binary-choice items: Participants select between two alternative responses.

Word-pair items: Participants are presented with pairs of words and are asked to select the word they prefer.

These responses contribute to determining the individual’s preferences across the four bipolar personality dimensions.

Administration and Scoring

According to the provided material, the MBTI can be administered to individuals over the age of 15 and may be completed either individually or in a group setting.

As part of the standardization procedure, a Greek scoring key was developed. Standard scores were also established separately for men and women and compared with corresponding French-Canadian and American scores.

The resulting pattern across the four bipolar dimensions is used to classify the respondent according to the personality types represented by the instrument.

Data Analysis and Use

MBTI results can be analyzed according to the four personality dimensions and the resulting personality-type classifications.

Descriptive analysis may include frequencies and percentages for the different personality types within a sample. Depending on the objectives of a study, researchers may also examine differences in personality-type distributions between participant groups.

The four dimensions may additionally be considered when examining relationships between personality preferences and other variables included in a research design, provided that the analysis is consistent with the scoring structure of the version being administered.

Validity and Reliability

According to the provided source, the questionnaire demonstrates adequate content validity and good discriminant validity, described as comparable to that of the American and French-Canadian versions of the MBTI.

The source also reports satisfactory construct validity.

However, the uploaded document does not provide specific numerical reliability coefficients. Therefore, no particular Cronbach’s alpha or other numerical reliability estimate should be attributed to this version solely on the basis of the available material.

Greek Adaptation

The MBTI was adapted for use with Greek-speaking populations.

According to the source document, the Greek translation was conducted by A. Stalikas and L. Fytopoulos.

The development of a Greek scoring key and standardized scores further supported the adaptation of the questionnaire for application within the Greek linguistic and cultural context.

Applications

The MBTI can be used in contexts concerned with the description and understanding of individual differences in personality.

Its typological framework can support the exploration of personality preferences and provide individuals with a structured way of understanding differences in psychological functioning.

The instrument can also be applied in research examining the distribution of personality types and their relationships with other variables.

The MBTI personality types should be interpreted as descriptive personality categories rather than diagnostic classifications.

Conclusion

The Myers-Briggs Type Indicator [MBTI-95 – Form G] provides a structured approach to describing personality according to Jung’s theory of psychological types.

Through its 95 items, the instrument examines four bipolar dimensions and allows individuals to be classified into 16 personality types. The availability of a Greek adaptation, including a Greek scoring key and standardized scores, supports its application within Greek-speaking populations.

References

Authors: K. Briggs & I. Myers-Briggs
Greek Adaptation: A. Stalikas & L. Fytopoulos.

Jung, C. G. (1971). Psychological Types. Princeton University Press.