Ipsative

Ipsative literally means "of the self" (latin derivation), and is used in psychology as in the phrase "ipsative measure" to indicate that the measure was a self-reporting measure, as contrasted to nomothetic. The term idiothetic (greek derivation) is also used in psychology to convey a similar meaning; however, ipsative is preferred as idiothetic has a different meaning in navigation research.

Examples of ipsative measures include questions that ask the participant to rate their preferences, or to give a score between 1 and 7 indicating how they feel about a particular statement.