A personality test aims to assess aspects of a person's character that remain stable across situations, referred to as their personality.

Personality is generally understood as a collection of emotional, thought, and behavioral patterns unique to a person, that is consistent over time. Generally, personality tests assess common characteristics for large segments of the population, describing people according to a number of dimensions or traits, rather than attempting to describe every detail of any particular individual's personality.

For example: (1) How well do you know someone? The best way an interviewer can determine whether she would meet those requirements in reality is through evaluating her mental ability at such scales as IQ, verbal fluency,[2] reasoning skills[3], memory, concentration ("what kind [of action have I had]), etc.[4][5]. A typical question on a job interview consists mostly with simple yes or no answers about previous experiences/activities conducted by certain individuals prior who also demonstrated average work performance ratings compared against others whom are considered below them;