title: The Massachusetts General Hospital (MGH) Hairpulling Scale: 2. reliability and validity.
abstract: 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.
authors.affiliation: Massachusetts General Hospital, Charlestown, Mass. 02129, USA.
authors.forename: R L
authors.initials: RL
authors.lastname: O'Sullivan
authors.forename: N J
authors.initials: NJ
authors.lastname: Keuthen
authors.forename: C F
authors.initials: CF
authors.lastname: Hayday
authors.forename: J N
authors.initials: JN
authors.lastname: Ricciardi
authors.forename: M L
authors.initials: ML
authors.lastname: Buttolph
authors.forename: M A
authors.initials: MA
authors.lastname: Jenike
authors.forename: L
authors.initials: L
authors.lastname: Baer
mesh_terms: D000328:Adult; D005260:Female; D006769:Hospitals, General; D006801:Humans; D008297:Male; D008404:Massachusetts; D011581:Psychological Tests; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D014256:Trichotillomania / Q000175:diagnosis*