A five-item likert scale designed to measure a customer's level of attachment to a business, this scale uses five, seven-point likert-type items.
Homburg, Christian, Jan Wieseke, and Wayne D. Hoyer (2009), "Social Identity and the Service-Profit Chain," Journal of Marketing, 73 (March), 38–54.
Free access to 2023+ psychometric scales at PsychScales