The Massachusetts General Hospital (MGH) Hairpulling Scale: 1. development and factor analyses

Psychother Psychosom. 1995;64(3-4):141-5. doi: 10.1159/000289003.


We developed the MGH Hairpulling Scale to provide a brief, self-report instrument for assessing repetitive hairpulling. Seven individual items, rated for severity from 0 to 4, assess urges to pull, actual pulling, perceived control, and associated distress. We administered the scale to 119 consecutive patients with chronic hairpulling. Statistical analyses indicate that the seven items form a homogenous scale for the measurement of severity in this disorder.

MeSH terms

  • Adult
  • Factor Analysis, Statistical
  • Female
  • Hospitals, General
  • Humans
  • Male
  • Massachusetts
  • Predictive Value of Tests
  • Psychological Tests
  • Severity of Illness Index
  • Surveys and Questionnaires
  • Trichotillomania / diagnosis*