Moore and Adair (1990), for example, evaluated a multi-component, school-based program intended to encourage helmet use among 11- to 13-year-olds attending an inner-city intermediate school in New Zealand. The program included a school assembly regarding the use and benefits of bicycle safety equipment and a two-week period during which lessons on bicycle maintenance, riding rules, and safety equipment were incorporated into class sessions in a variety of school subjects. Other program components entailed bicycle inspections, a school bicycle rally, the distribution of coupons for 10% off of a helmet purchase, and an eight-week period during which children seen wearing helmets while riding to school were rewarded with passes to entertainment centers. Observations of the helmet usage of bicyclists leaving the program school at the end of the school day were compared with similar observations of bicyclists leaving a comparison school of a comparable size, school level, and community socioeconomic status. These observations suggested that there was an increase in helmet use in the program school, relative to the comparison school, particularly among girls. Observed helmet use in the program school increased from 3.5% at baseline to 33.3%, ten weeks after the initial school assembly. Although this finding is suggestive, its interpretation is complicated by the fact that a student at the program school was involved in a serious bicycle accident during the evaluation period. This tragedy may have influenced helmet use patterns in the program school.