yourpersonalityreport.com's OCEAN questionnaire  is based on the Big Five Factor Model of personality developed by researchers in the field of personality assessment such as Lewis Goldberg and Paul Costa and Robert McCrae. Click here to read a history of the Big Five model.

The instrument meets the standards of reliability and validity for a modern psychometric instrument.

» The instrument has good internal consistency reliability with a median scale reliability of 0.80.

» The median scale test-retest reliability is 0.81.

» The Big Five factor pairs share less than 25% common variance.

» The median correlation between the OCEAN scales and Big Five factor marker variables is 0.80.

» The median correlation between OCEAN scales and self-assessed job performance is 0.28.

» The general population norm group is based on an international sample of 25,000 respondents with equal numbers of men and women.