Measures consumer perceptions of brand authenticity across three dimensions. Quality Commitment captures the brand's consistent delivery of high quality, craftsmanship, and reliability over time. Heritage captures the brand's historical roots, origin story, and continuity with its founding values and traditions. Sincerity captures the brand's honest, genuine, and non-commercially motivated communication and behaviour. Brand authenticity is a powerful driver of consumer trust, brand attachment, willingness to pay premiums, and forgiveness of brand failures. Consumers increasingly scrutinise brand authenticity in response to purpose-washing, greenwashing, and performative brand activism. The BAS is the most widely used consumer-based brand authenticity scale in marketing research.
Likert (1–7, strongly disagree to strongly agree)
Quality Commitment — brand's dedication to quality and craft (Likert 1–7, strongly disagree to strongly agree)
Heritage — brand's history, roots, and tradition
Sincerity — brand is honest and genuine in its values
Full scale items shown. Always cite the original source when using this scale in research.
Three subscale scores. Heritage is the strongest authenticity cue for legacy and luxury brands. Sincerity is the most powerful predictor of brand trust and resistance to authenticity threats (e.g., celebrity endorsement controversies, greenwashing accusations). Quality Commitment is most salient in functional product categories. Widely used in research on craft beer, artisanal products, heritage brands, and brand activism authenticity.
Napoli, J., Dickinson, S.J., Beverland, M.B., & Farrelly, F. (2014). Measuring consumer-based brand authenticity. Journal of Business Research, 67(6), 1090–1098.
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