For more than half-a-century, the Sixteen Personality Factor Questionnaire® (16pf®) has helped decision makers to reveal potential, confirm suitability, and identify development needs in the workplace. By matching key characteristics of a job with individual traits using the 16pf, better job-fit can be obtained and, as a result, turnover can be lowered, consistent performance can be ensured, sales can be increased, or teamwork can be improved. The 16pf has also served clinicians and counsellors with greater insights into factors that might influence personal and relational issues in everyday life. The 16pf is a trusted assessment for the reliable and valid way in which it measures individual differences between people, with years of data backing it. The 16pf measures 16 different primary personality characteristics structured around the “Big Five” global factors of personality, thereby providing a fully rounded picture of the individual.