This measure is intended to screen for personality features characterized by rigidity, perfectionism, and overcontrol, as assessed by the Anankastic Traits Test. It is typically used to support clinical formulation and to guide areas for further assessment rather than as a stand-alone diagnostic tool. The version referenced here is attributed to Paul T. Costa Jr.; Robert R. McCrae.
The instrument consists of 15 items and generally requires about 3 minutes to complete. Results from the Anankastic Traits Test are commonly interpreted as an estimate of the relative prominence of anankastic traits and may be considered alongside interview data, behavioral observations, and other psychometric findings.