Edson Luiz Toledo, Rogéria Taragano
Programa Ambulatorial Integrado dos Transtornos do Impulso do Instituto de Psiquiatria do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (Proamiti-IPq-HC-FMUSP).
Táki Athanássios Cordás
FMUSP, Departamento de Psiquiatria da USP, IPq-HC-FMUSP, Programa de Transtornos Alimentares (Ambulim)
Cristiano Nabuco de Abreu
HC-FMUSP, Proamiti-HC-FMUSP, Ambulim-HC-FMUSP
Norman Hearst
Departamento de Medicina Comunitária e Familiar e Departamento de Epidemiologia e Bioestatística da Universidade da Califórnia
Maria Aparecida Conti
Faculdade de Saúde Pública da USP, Ambulim-HC-IPq-FMUSP

Abstract:

Background: Trichotillomania (TTM) is characterized by the act of pulling out, in a recurrent way, your own hair for pleasure, gratification or tension release, leading to a perceptible hair loss, and it is included in the Impulse Control Disorders Unclassified Elsewhere of the DSM-IV-TR (APA, 1994) section. The Massachusetts General Hospital (MGH) Hairpulling Scale is an instrument used recently in many studies to assess trichotillomania symptoms. Objective: The present paper aims to adapt this scale into the Portuguese language. To cross-culturally adapt the Massachusetts General Hospital (MGH) Hairpulling Scale to Portuguese and evaluate its internal consistency. This instrument aims to evaluate Trichotillomania. Methods: The work consisted of five steps: (1) translation; (2) back-translation; (3) peer review and evaluation of semantic and conceptual equivalences using experts; (4) instrument evaluation through a sample of students, by evaluating their level of understanding; and (5) analysis of the instrument’s internal consistency through Cronbach’s a-coefficient. Results: The instrument was translated and adapted to Portuguese, and shown to be easily understood, with an internal consistency value of 0.96. Discussion: The instrument is now translated and adapted to Portuguese. Measurement and reproducibility analyses are needed.

Keywords:Trichotillomania, cross-cultural adaptation, scales, psychometric, validity studies.