The first dedicated psychometric measure of consumer attachment to specific possessions, validated through qualitative analysis, item generation, and quantitative refinement in multiple student samples. Alpha 0.88–0.93 across validation studies; all items load saliently on a single factor with loadings >0.75. Attachment level predicts resistance to separation, distress at potential loss, unwillingness to sell or trade at market value, and willingness to pay well above market price to retain the possession. High-attachment possessions tend to be autobiographical objects, gifts, heirlooms, or items linked to significant life events (first car, childhood toy, jewellery from a loved one). The APS is widely used in research on the extended self, possession rituals, disposition behaviour, forced product loss, and the psychological costs of disaster or theft. Three antecedents consistently predict attachment: length of possession ownership, method of acquisition (gifted/inherited > purchased), and degree of inalienability (perceived uniqueness and non-replaceability). Mean attachment scores are higher for socially acquired possessions than market-acquired ones.
Ball, A.D., & Tasaki, L.H. (1992). The role and measurement of attachment in consumer behavior. Journal of Consumer Psychology, 1(2), 155–172.
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