Evidence in support of effectiveness of (school-based) sexuality education is increasing, yet it is remaining modest. Proof of the effects of sexuality education on biomarkers such as hiv-incidence is notably hard to come by. This paper discusses the many reasons why this is the case. Reasons pertain to, for instance, characteristics of the educational programmes or the way they are taught, to the principal nature of learning, to ('golden standard') research-methodological issues, to the choice of outcome measures employed, or to the multi-determinedness of sexual health. Considering all constraints and limitations, it is almost a wonder that any effects are ever empirically shown at all.
Conflict of Interest: None disclosed
Financial Support/Funding: None disclosed
Recorded at the 20th WAS World Congress for Sexual Health - ‘Forging the Future: Sexual Health for the 21th Century,’Glasgow, United Kingdom, - June 12 – 16, 2011