Psychotherapy and Psychosomatics · 2010 · 190 citations · 0 references
Social SciencesDermatologyPsychologyHealth AssessmentPsychometricsScale DevelopmentHair DisordersPsychological AssessmentPsychological TestingRating Scale DevelopmentSymptom AssessmentTest ReliabilityClinical PsychometricsClinical Rating ScalesPatient-reported Symptom ScalesRating Scale ConstructionSelf-report ScalesSelf-report Symptom ScalesSymptom Severity Rating ScalesTest-retest Reliability
Assessment of symptom severity and change in chronic hairpulling has been limited by the absence of a psychometrically validated clinical rating scale. The Massachusetts General Hospital Hairpulling Scale demonstrated test-retest reliability, convergent and divergent validity, and sensitivity to change in hairpulling symptoms.