A 16-item, four-dimensional scale measuring the extent to which brand-experienced consumers voluntarily and non-incentivised advocate for a brand in online settings. Developed via a multi-stage process including netnography, test-retest reliability, academic judge sorting, and two general online consumer samples. OBA is conceptualised as distinct from eWOM and consumer-brand engagement (CBE), capturing purposeful, elaborate, and publicly visible brand support that includes both verbal advocacy and virtual visual expression (emoticons, emojis). Grounded in Social Exchange Theory.
Wilk, V., Soutar, G.N., & Harrigan, P. (2020). Online brand advocacy (OBA): the development of a multiple item scale. Journal of Product & Brand Management, 29(4), 415–429.
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