Study Study method Theoretical underpinning Type & number of components Dose Mode of delivery Teaching method Ross et al. 2007 [17 ]; Hayes et al. 2005 [26 ]* and Doyle et al. 2010 [27 ]* Design: community randomized trial sample size : Not reported Educational and behavioral components Amount: 40 min. Strategy: face-to-face Media Didactic: lessons on sexual health Maro et al. 2009 [12 ] Design : quasi-experimental sample size : Achievement goal theory Educational and behavioral components Amount: NR Strategy: face-to-face Didactic: education sessions
Pettifor et al. 2005 [18 ] and Stadler and Hlongwa 2002 [28 ]* Design : quasi-experimental sample size : Not reported Educational and behavioral components Amount: NR Strategy written media Didactic: print & prevention information Cowan et al., 2008 [29 ] and Cowan et al. 2010* [19 ] Design : quasi-experimental sample size : Social learning theory & Stages of changed model Educational and behavioral components Amount: 3 hours (180 min) Strategy: face-to-face Didactic: in & out of school curriculum Erulkar et al. 2004 [20 ] Design : quasi-experimental sample siz e: Not reported Educational and behavioral components Amount: 90–120 min. Strategy: face-to-face format: group Didactic: lectures interactive: group discussion Underwood et al., 2006 [21 ] Design : quasi-experimental, separate sample baseline and follow-up design sample size : Theory of behavior change Educational and behavioral components Amount: NR Strategy: media written Didactic: Nastasi et al., 1998 [25 ] Design : ethnographic and survey research sample size : Sample Size : Social construction theory Educational and behavioral components Amount: 90 minutes Strategy: written face-to-face Didactic: Speizer et al., 2001 [22 ] Design: quasi-experimental sample size: site 1: sample size: site 2: Not reported Educational and behavioral components Amount: NR Strategy: face-to-face written (comic strips) Didactic: Jewkes et al., 2008 [23 ] Design: cluster randomised trial sample size : Participatory learning approaches Educational and behavioral components Amount: 3 hours (total of 50 hours) Strategy: face-to-face Didactic: sessions on sexual and reproductive health, HIV, and prevention Harvey et al., 2000 [24 ] Design: randomized community trial sample size : Not reported Educational and behavioral components Amount: NR Strategy: face-to-face media (songs) Didactic: posters
