Tools for assessing an individual's readiness to change nonsuicidal self-injury (NSSI) are limited. The Transtheoretical model of change (TTM) has been useful in predicting behavior change and guiding interventions for a variety of health behaviors including eating disorders, substance use disorders, and exercise. The aim of the current study was to examine the validity of test score interpretations from 3 newly developed measures to assess NSSI behavior change. Following in-depth interviews, modifications to existing TTM scales were made and tested with a set of web-based measures delivered to people who self-injure. This resulted in 11 new scales that reflect 3 domains associated with behavior change: NSSI-Decisional Balance (NSSI-DB), NSSI-Processes of Change (NSSI-POC), and NSSI-Self-Efficacy (NSSI-SE). Overall, results provide support for the reliability of test scores and validity of test scores interpretations. Implications for research, clinical use, and next steps are discussed. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

中文翻译：

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制定和初步验证量表，以评估非自杀性自残的年轻人群中的决策平衡（NSSI-DB），变更过程（NSSI-POC）和自我效能感（NSSI-SE）。

评估个人准备改变非自杀性自残（NSSI）的工具有限。变化的跨理论模型（TTM）在预测行为变化和指导各种健康行为（包括饮食失调，药物滥用失调和运动）的干预方面很有用。本研究的目的是从3种新近开发的评估NSSI行为变化的方法中检验考试成绩解释的有效性。在进行深入采访之后，对现有的TTM量表进行了修改，并通过一系列基于网络的措施对自伤者进行了测试。这产生了11个新的量表，反映了与行为改变相关的3个领域：NSSI决策平衡（NSSI-DB），NSSI变革过程（NSSI-POC）和NSSI自我效能感（NSSI-SE）。总体，结果为考试成绩的可靠性和考试成绩解释的有效性提供了支持。讨论了对研究，临床用途和下一步的意义。（PsycInfo数据库记录（c）2020 APA，保留所有权利）。