Saving inventory - Revised: Psychometric performance across the lifespan.

Area of Science:

• Psychiatry and Psychology
• Clinical Assessment
• Mental Health Research

Background:

• The Saving Inventory - Revised (SI-R) is the primary self-report measure for hoarding symptom severity.
• Accurate screening and diagnosis of hoarding disorder are crucial for effective treatment.

Purpose of the Study:

• To establish empirical cutoff scores for the SI-R.
• To evaluate the SI-R's effectiveness as a screening tool across the lifespan.
• To identify age-specific cutoff scores for improved diagnostic accuracy.

Main Methods:

• Utilized archival data from 1,116 participants with diagnosed hoarding disorder.
• Employed receiver operating characteristic (ROC) analysis and Youden's J statistic.
• Determined optimal cutoff scores for classifying hoarding disorder.

Main Results:

• The SI-R demonstrated high discriminant performance, confirming its utility as a screening tool.
• An optimal SI-R Total cutoff score of 39 was identified.
• Age-specific cutoffs were found: lower for older adults and higher for adults under 40.

Conclusions:

• The SI-R is a reliable tool for differentiating hoarding disorder.
• Clinicians can now use evidence-based, age-specific cutoff scores for the SI-R.
• This research enhances the diagnostic precision of hoarding symptom severity assessment.