Editing Personality test (section)

=== Self- vs. observer-reports ===
A personality test can be administered directly to the person being evaluated or to an observer. In a self-report, the individual responds to personality items as they pertain to the person himself/herself. Self-reports are commonly used. In an observer-report, a person responds to the personality items as those items pertain to someone else. To produce the most accurate results, the observer needs to know the individual being evaluated. Combining the scores of a self-report and an observer report can reduce error, providing a more accurate depiction of the person being evaluated. Self- and observer-reports tend to yield similar results, supporting their validity.<ref name=":0">{{Cite book|title=Individual Differences and Personality|last=C.|first=Ashton, Michael|isbn=9780128098455|edition=3rd|oclc=987583452|date = 2017-06-13|publisher=Elsevier Science }}</ref>