title: Replication study of the milwaukee inventory for subtypes of trichotillomania-adult version in a clinically characterized sample.
abstract: In the present study, we evaluated the Milwaukee Inventory for Subtypes of Trichotillomania-Adult Version (MIST-A) in a replication sample of clinically characterized hair pullers using exploratory factor analysis (EFA; N = 193). EFA eigenvalues and visual inspection of our scree plot revealed a two-factor solution. Factor structure coefficients and internal consistencies suggested a 13-item scale with an 8-item "Intention" scale and a 5-item "Emotion" scale. Both scales displayed good construct and discriminant validity. These findings indicate the need for a revised scale that provides a more refined assessment of pulling phenomenology that can facilitate future treatment advances.
authors: Massachusetts General Hospital, Boston, MA, USA nkeuthen@partners.org.
authors: Nancy J
authors: NJ
authors: Keuthen
authors: Massachusetts General Hospital, Boston, MA, USA.
authors: Esther S
authors: ES
authors: Tung
authors: Texas A&M University, College Station, TX, USA.
authors: Douglas W
authors: DW
authors: Woods
authors: University of Pennsylvania, Philadelphia, PA, USA.
authors: Martin E
authors: ME
authors: Franklin
authors: The Ohio State University, Columbus, OH, USA.
authors: Erin M
authors: EM
authors: Altenburger
authors: Massachusetts General Hospital, Boston, MA, USA.
authors: David L
authors: DL
authors: Pauls
authors: Kent State University, Ohio, OH, USA.
authors: Christopher A
authors: CA
authors: Flessner
mesh_terms: D000328:Adult; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D014256:Trichotillomania / Q000145:classification / Q000175:diagnosis*
keywords: assessment; hair pulling; styles of pulling; trichotillomania