The Milwaukee Inventory for the Dimensions of Adult Skin Picking (MIDAS): initial development and psychometric properties

J Behav Ther Exp Psychiatry. 2009 Mar;40(1):127-35. doi: 10.1016/j.jbtep.2008.07.002. Epub 2008 Jul 19.

Abstract

This article describes the development and initial psychometric properties of the Milwaukee Inventory for the Dimensions of Adult Skin picking (MIDAS), a measure designed to assess "automatic" and "focused" skin picking. Data were collected from 92 participants who completed an anonymous internet-based survey. Results of an exploratory factor analysis revealed a two-factor solution. Factors 1 ("focused" picking scale) and 2 ("automatic" picking scale) each consisted of 6 items, and preliminary data demonstrated adequate internal consistency, good construct validity, and good discriminant validity. The MIDAS provides researchers with a reliable and valid assessment of "automatic" and "focused" skin picking.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Anxiety Disorders / complications
  • Anxiety Disorders / diagnosis*
  • Anxiety Disorders / psychology
  • Factor Analysis, Statistical
  • Female
  • Humans
  • Internal-External Control
  • Male
  • Middle Aged
  • Obsessive-Compulsive Disorder / complications
  • Obsessive-Compulsive Disorder / diagnosis*
  • Obsessive-Compulsive Disorder / psychology
  • Personality Assessment
  • Psychiatric Status Rating Scales
  • Psychometrics / methods*
  • Psychometrics / standards*
  • Psychometrics / statistics & numerical data
  • Reproducibility of Results
  • Self-Injurious Behavior / diagnosis*
  • Self-Injurious Behavior / psychology
  • Severity of Illness Index
  • Skin / injuries*
  • Young Adult