Revisiting Sproles and Kendall’s Consumer Styles Inventory (CSI) in the 21st Century: A Case of Australian Consumers Decision-Making Styles in the Context of High and Low-Involvement Purchases

There has been considerable research on the investigation of Consumer Decision-Making Styles (CDMS). However, research designs suggested to date mainly replicate the original study by Sproles and Kendall (1986) proposing eight mental characteristics, the Consumer Styles Inventory (CSI). The research aims to develop this approach further and apply the CSI to different product involvement (e.g., high and low) and compare the relationship between product involvement and consumer decision-making styles. Data were collected from 208 Australian respondents using a self-administered questionnaire. Exploratory and confirmatory factor analysis was conducted on the CSI adapted for high and low involvement purchases. The generalisability of the CSI was tested within this context. Results found significant differences between the two product categories and demonstrated a relationship between products and CDMS and that CDMS are governed by consumers’ perceived product involvement. Furthermore, the original CSI can still be a valuable measure to low involvement purchases; however, it is questionable and requires further modification in relation to high involvement purchases. For instance, the addition of new factors such as “environmental sustainability”, “innovation consciousness”, “corporate social responsibility”, etc. with the original scale would help understand CDMS effectively. The findings of this research will expand the scientific literature on the relationship between product involvement and CDMS. Knowing that Australians are ‘rational’ and ‘quality conscious’ buyers, managers can employ CDMS to analyse consumers’ needs and develop segmented marketing messages and strategies.