Sharp, Byron; Hartnett, Nicole - In: European Journal of Marketing 50 (2016) 1/2, pp. 301-305
Purpose – This paper aims to reflect on the generalisability of the predictive validity test of the Persuasion Principles Index (PPI) conducted by Armstrong et al. (2016). Design/methodology/approach – Different aspects of the test are considered, such as the sample of ads, the dependent...