Beliefs About One’s Non-Suicidal Self-Injury: The Experiences of Self-Injury Questionnaire (ESIQ)

Objective The goal of this study was to develop and validate a measure of self-rated positive and negative beliefs about one’s non-suicidal self-injury (NSSI), the Experiences of Self-Injury Questionnaire (ESIQ).Method Psychometric properties and validation against NSSI severity and shame were tested in two U.S. and two U.K. samples of individuals who endorsed a history of NSSI.Results Exploratory and confirmatory factor analyses indicated five...