This monograph reviews seven field studies that evaluated behaviour-based interventions designed to increase safe-driving practices of pizza deliverers. Intervention strategies focused primarily on variations of goal-setting and feedback techniques, including (a) non-numerical goals in an awareness and promise card intervention; (b) non-numerical goals mandated as company policy; (c) participative and assigned group goal setting paired with feedback; (d) group goal setting and feedback with added public individualised feedback; (e) individualised feedback and competition; and (f) private individualised feedback paired with dynamic, static, or dynamic and static goals. An additional intervention evaluated a community program in which pizza delivers acted as behaviour change agents for safety-belt use. Two models of intervention effectiveness were evaluated for their ability to help practitioners design interventions that maximise both short-term and long-term impacts as well as desirable response generalisation. The amounts of individual involvement, peer support, response information, and external consequences influenced the beneficial impacts of the interventions. Additionally, maintenance of behaviour change after the interventions were withdrawn varied directly with the degree of peer support and involvement in the interventions' design. Employee involvement increased the amount of desirable response generalisation while external consequences seemed to be associated with undesirable spread of effect presumed to be countercontrol. (A)
Abstract