The Big Five Personality Traits model is one of the most popular and foundational models in contemporary psychodiagnostics. The assessment of the "Big Five" personal qualities is considered the most valid and scientifically substantiated in academic psychology. The Five-Factor Model has played a significant role in the development of science, directly influencing the emergence of a multitude of new research and psychological questionnaires.
This model posits that each individual possesses five key qualities that form their personality. These are openness to experience, conscientiousness, extraversion, agreeableness, and emotional stability (neuroticism). All these qualities can sometimes be abbreviated as OCEAN.
Although the term "Big Five" was first used by Goldberg only in 1982, the use of the Five-Factor Model and similar scales can be found in research dating back to the 1960s.