Re-Examining the Psychometric Properties of the Massachusetts General Hospital Hairpulling Scale
January 2018
in “
NDSU Repository (North Dakota State University)
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TLDR The hair-pulling scale needs improvement for better accuracy and consistency.
The study aimed to evaluate the psychometric properties of the Massachusetts General Hospital Hairpulling Scale, a tool used to measure the severity of Trichotillomania. The findings indicated that the scale had acceptable internal consistency and demonstrated divergent validity. However, the test-retest reliability was found to be inadequate, and the evidence for convergent validity was mixed. These results suggested the need for further refinement of the scale to improve its reliability and validity in assessing Trichotillomania severity.