This paper increases understanding of the accuracy of consumers' self-reports about using brands and categories. The researchers select television viewing as the category of usage firstly, due to the availability of robust panel data for validation of the claimed data (i.e. self-reported) and...

Purpose Despite the growing availability of scanner-panel data, surveys remain the most common and inexpensive method of gathering marketing metrics. The purpose of this paper is to explore the size, direction and correction of response errors in retrospective reports of category buying....