Keuthen Nancy J, Tung Esther S, Woods Douglas W, Franklin Martin E, Altenburger Erin M, Pauls David L, Flessner Christopher A
Massachusetts General Hospital, Boston, MA, USA
Massachusetts General Hospital, Boston, MA, USA.
Behav Modif. 2015 Jul;39(4):580-99. doi: 10.1177/0145445515580533. Epub 2015 Apr 13.
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.
在本研究中,我们使用探索性因素分析(EFA;N = 193),在一组具有临床特征的拔毛者复制样本中评估了成人版拔毛癖亚型密尔沃基量表(MIST-A)。EFA特征值和碎石图的可视化检查显示出一个双因素解决方案。因素结构系数和内部一致性表明,该量表有13个项目,其中包括一个8项的“意图”量表和一个5项的“情感”量表。两个量表均显示出良好的结构效度和区分效度。这些发现表明,需要一个经过修订的量表,以便对拔毛现象学进行更精细的评估,从而促进未来治疗的进展。