Richmond Compulsive Buying Scale.
The Richmond compulsive buying scale is a 6 item questionnaire.
Items are scored on a 1-7 scale, with the total scale score calculated as a sum of the items.
Scoring 25 or higher is considered compulsive buying.
Ridgway, Nancy M., Monika Kukar‐Kinney, and Kent B. Monroe. “An Expanded Conceptualization and a New Measure of Compulsive Buying.”Journal of Consumer Research 35, no. 4 (December 2008): 622-39. doi:10.1086/591108.
Müller, A., Trotzke, P., Mitchell, J., de Zwaan, M. and Brand, M. (2015). The Pathological Buying Screener: Development and Psychometric Properties of a New Screening Instrument for the Assessment of Pathological Buying Symptoms. PLOS ONE, 10(10), p.e0141094.
Maraz, A., Griffiths, M. and Demetrovics, Z. (2016). The prevalence of compulsive buying: a meta-analysis. Addiction, 111(3), pp.408-419.