Abstract
The primary objectives of the present study were to gain insight into website use and to predict the surfing depth on a behaviour change website and its effect on behaviour. Two hundred eight highly educated adults from the intervention condition of a randomised trial received access to a medical intervention, individual coaching (by e-mail, post, telephone or face-to-face) and a behaviour change website. Website use (e.g. surfing depth, page view duration) was registered. Online questionnaires for physical activity and fat intake were filled out at baseline and after 6 months. Hierarchical linear regression was used to predict surfing depth and its effect on behaviour. Seventy-five per cent of the participants visited the website. Fifty-one and fifty-six per cent consulted the physical activity and fat intake feedback, respectively. The median surfing depth was 2. The total duration of interventions by e-mail predicted deeper surfing (β = 0.36; p < 0.001). Surfing depth did not predict changes in fat intake (β = −0.07; p = 0.45) or physical activity (β = −0.03; p = 0.72). Consulting the physical activity feedback led to more physical activity (β = 0.23; p = 0.01). The findings from the present study can be used to guide future website development and improve the information architecture of behaviour change websites.
Acknowledgements
This study was funded by the Chair ‘Leerstoel De Onderlinge Ziekenkas-Preventie’ established at Hasselt University. The authors thank Dr. Jan Van Mierlo for recoding the data on website use and IT-specialist Frederick Valkenborgh for programming the behaviour change website.