An Illustration of Potential Sources of Concept‐Test Error*

Abstract

A critical step in prelaunch market analysis needing improvement is concept testing. This article reviews the literature on the three basic design decisions inherent to concept testing: (1) stimuli design; (2) respondent selection; and (3) response measurement. By incorporating findings from diffusion theory, the current review identifies a number of potential sources of concept‐test error (e.g., failing to account for adoption orientation could unintentionally mask the response of earlier adopters). Through an exploratory study that replicates in many ways a typical concept test, the present study illustrates how results of conventional concept testing can be sensitive to respondents' adoption orientation and the response measure used. This study offers implications for NPD practice that include accounting for the adoption orientation of respondents, using appropriate response measures such as affective questions for later adopters, and incorporating more product‐related information and repeat exposure for later adopters.

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