This scale measures how much a shopper believes that no one else can hear them moving around or handling product packaging while in a physical store. Ringler, Esmark Jones, and Stevens (2022) developed it to study how ambient sound levels create a sense of auditory concealment for shoppers.
Ringler, Christine, Carol L. Esmark Jones, and Jennifer L. Stevens (2022), "The Ostrich Effect: Feeling Hidden Amidst the Ambient Sound of Human Voices," Journal of Retailing, 98 (4), 593-610.
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