On the Measurement of Purchase Data: Surveys versus Purchase Diaries
Open Access
- 1 February 1979
- journal article
- research article
- Published by SAGE Publications in Journal of Marketing Research
- Vol. 16 (1) , 39-47
- https://doi.org/10.1177/002224377901600106
Abstract
The first large-scale marketing study in which individual consumers’ survey responses could be linked to their panel diary recordings is reported. The results, for the margarine category only, indicate correspondence between the two data sets at the aggregate brand share level but great discrepancies at the individual consumer level. Analysis of this discrepancy calls into question the use of survey reports as an indicator of individual purchase in product positioning, segmentation, advertising media and copy research, and concept/product testing.Keywords
This publication has 7 references indexed in Scilit:
- Measure Validation in MarketingJournal of Marketing Research, 1972
- On the Accuracy of Recording of Consumer Panels: IIJournal of Marketing Research, 1964
- On the Accuracy of Recording of Consumer Panels: IJournal of Marketing Research, 1964
- Convergent and discriminant validation by the multitrait-multimethod matrix.Psychological Bulletin, 1959
- Do Research Panels Wear Out?Journal of Marketing, 1956
- Bias Arising in Wording Consumer QuestionnairesJournal of Marketing, 1954
- Consistency of Information from Records and InterviewsJournal of the American Statistical Association, 1940