Abstract
BackgroundWeb-based computer-tailored (CT) interventions have a high potential to reach a large number of people and effectively change health risk behaviors and their determinants. However, effect studies show small and variable effect sizes, and these interventions also suffer from high drop-out. In this study we explored how Web-based CT interventions can be used effectively to reduce binge drinking in 16- to 18-year-old adolescents.MethodA three-round Delphi study was conducted. We invited experts to identify strategies to be used in Web-based CT interventions that can effectively decrease binge drinking in adolescents and to rate these strategies by importance. We asked to discriminate between interventions targeted for adolescents and those targeted for parents. Furthermore, we asked experts to suggest strategies for reducing drop-out and to indicate their importance.ResultsImportant strategies mentioned by the experts were: encouraging parents to set appropriate rules, encouraging consistent communication, and training refusal skills among adolescents. Concerning the reduction of drop-out from Web-based CT interventions experts came up with suggestions involving the content of the intervention (e.g., relevant material, use of language, tailored messages) but also involving the use of reminders and incentives.ConclusionsThe results of this explorative study provide useful strategies to increase effectiveness and decrease drop-out in future interventions.Electronic supplementary materialThe online version of this article (doi:10.1186/s12889-015-1639-z) contains supplementary material, which is available to authorized users.
Highlights
Web-based computer-tailored (CT) interventions have a high potential to reach a large number of people and effectively change health risk behaviors and their determinants
Concerning the reduction of drop-out from Web-based CT interventions experts came up with suggestions involving the content of the intervention and involving the use of reminders and incentives
Interventions are needed to reduce binge drinking among adolescents [1,2], which should be targeted at their personal determinants as well as their environment [7]
Summary
Web-based computer-tailored (CT) interventions have a high potential to reach a large number of people and effectively change health risk behaviors and their determinants. In this study we explored how Web-based CT interventions can be used effectively to reduce binge drinking in 16- to 18-year-old adolescents. Interventions are needed to reduce binge drinking among adolescents [1,2], which should be targeted at their personal determinants (e.g., socio-cognitive variables) as well as their environment (e.g., parenting and peer influences) [7]. The 16- to 18-year-old adolescent group has been largely understudied, with only a few studies focusing on this age group [8,9]. Most studies focused on either younger adolescents [10,11,12,13,14] or young adults who are 18 years and older [15,16,17]
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