> School-based sexual health interventions improved knowledge and attitudes in school students up to 18. However, they failed to consistently improve safe sex practices or reduce unwanted pregnancies. Abstinence-based messages were least effective.
> This review of reviews included 37 systematic reviews of school-based sexual health interventions. It excluded low-quality reviews and spanned 1990 to 2016, so is likely to reflect the best evidence available on the topic.
I'm not an expert but my understanding is that PSAs have a pretty mixed record historically (including some that, strictly from an advertising impact perspective, were pretty well done). e.g. Keep America Beautiful.
In conjunction with other actions, behaviors such as smoking can be altered. But it takes a lot of wood behind a lot of arrows to shift public attitudes.
It doesn't seem to work that well.
https://discover.dc.nihr.ac.uk/portal/article/4000763/teachi...
> School-based sexual health interventions improved knowledge and attitudes in school students up to 18. However, they failed to consistently improve safe sex practices or reduce unwanted pregnancies. Abstinence-based messages were least effective.
> This review of reviews included 37 systematic reviews of school-based sexual health interventions. It excluded low-quality reviews and spanned 1990 to 2016, so is likely to reflect the best evidence available on the topic.