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Hoarding disorder is a debilitating condition that results from difficulty or inability to discard possessions and the need to save items and leads to cluttered living space. It impedes normal everyday functioning and causes significant distress and dysfunction. The aim of the current study was to validate the Greek version of the Saving Inventory-Revised (SI-R) in a non-clinical sample of 554 Greek adults. Factor structure and psychometric properties were investigated. Common exploratory (EFA) and confirmatory factor analysis (CFA) were used to explore the factor structure of the data. A three-factor solution was emerged for the Greek SI-R Which appears to cover the clinical dimensions of the phenomenon and consists of clutter, difficulty discarding and acquisition dimensions. This finding is in accordance with the original English version as well as other adaptations of the instrument in other languages. Some items cross loaded but such findings of cross loading items are also reported in related literature. The Greek version of the SI-R exhibits satisfactory internal consistency and good test retest reliability (stability). The current study also aimed to gather evidence towards the convergent and discriminant validity of Greek SI-R. Findings showed no correlation with measurements of different constructs such as anxiety, depression and non-hoarding obsessive compulsive symptoms but also only partial correlation with measurements of relative clinical constructs, such as hoarding items in obsessive compulsive inventories. Current findings suggest that the Greek SI-R can be a useful tool in the detection and evaluation of hoarding symptoms in Greek population.

Factor structure and psychometric properties of the Greek version of Saving Inventory-Revised (SI-R) in a non-clinical sample