This paper presents the development and validation of the Possessions as Others and Self Inventory (POSI). The POSI is a 23-item self-report measure that assesses the extent to which possessions are perceived to be extensions of self and significant others in hoarding disorder. In Study 1 (N = 246 community participants, M age = 33.70), exploratory factor analysis suggested the retention of a six-factor solution consistent with the notion that links between possessions, self, and others have numerous dimensions. Confirmatory factor analysis in Study 2 (N = 307 community participants, M age = 35.13) supported the consistency of the six-factor structure. Convergent validity was buttressed by strong correlations between POSI subscales and hoarding symptomology and beliefs. Following disposal of possessions, a perceived feeling of emptiness within the self appears to be particularly pertinent to hoarding behavior.

本文介绍了“他人占有和自我盘存”（POSI）的发展和验证。POSI是一项23项自我报告的量度，用于评估在ho积症中人们认为所有物是自我和重要他人的延伸的程度。在研究1中（N =  246个社区参与者，M年龄= 33.70），探索性因素分析表明保留了六因素解决方案，这一解决方案与财产，自我和他人之间的联系具有众多维度的观念相符。研究2中的验证性因素分析（N =  307名社区参与者，M年龄= 35.13）支持六因素结构的一致性。POSI分量表与ho积症状和信念之间的强相关性支持了收敛效度。在处置财产后，自我内部的一种空虚感觉似乎与ho积行为特别相关。