Activities. In five studies, activities were tailored to participants by gender , by race/ethnicity [6], and according to their risk profile . Four interventions included question/answer “quiz” modules to gauge participants’ sexual health knowledge and perceptions . Role model stories and videos featuring peers or experts [8–10] were also commonly included. Other activity types included moderated online discussion , contact by health professionals over e-mail , self-assessment of skills and attitudes , and mobile phone calls from research staff . Three studies mentioned using activity modules or programs with no further detail as to what they contained. In three studies, Web-based activities were supplemented with more conventional educational approaches, including classroom instruction , small-group sessions , and a CD-ROM-led exercise .