The demographic make-up of the study population is shown in Table 2. The total number of participants in the study was 549. The participants were about equally represented by males and females. The age groups, which were selected using tree analysis (that will be described later), included children aged 6–10, who comprised 12% (n = 66) of the study population; the group labeled teens comprised individuals aged 11–15 and included 22% (n = 121) of the study population; and a group labeled adults comprised individuals 16 years old and older and made up 66% (n = 192) of the study population. The labels children, teens, and adults will be used in the remainder of this paper to describe these three age groups.