Identifying Personality Assessments

In psychology, various methods are employed to assess an individual's personality. One common technique is the use of psychometric tests, which attempt to quantify personality traits. An example of such a test is the Myers-Briggs Type Indicator (MBTI). Psychologists often use these assessments to help understand an individual's behavior and preferences. Which of the following assessments is primarily used to measure the specific traits of a person's personality?