Abstract
An incentive program to motivate seat belt use was implemented at a large munitions plant. Seat belt wearing increased first but during follow- up mean belt use dropped almost to baseline levels. A study of belt wearing practices of individuals revealed that the incentive program influenced some drivers to wear their seat belts when incentives were not distributed (i.e. treatment generalization)and during a follow- up period after the incentives were withdrawn (i.e. response maintenance).