Science is measurement.
In the assessment of phobic and obsessional states three approaches have been adopted--self rating scales, observer rating scales and physiological measurements. A comprehensive approach utilising all methods is suggested in the evaluation of new treatment techniques.
D006801:Humans; D007406:Interview, Psychological / Q000379:methods; D009771:Obsessive-Compulsive Disorder / Q000175:diagnosis*; D010698:Phobic Disorders / Q000175:diagnosis*; D012647:Self-Assessment