It funded the Randomised Intervention of Pupil-Led sex Education (RIPPLE) study which compared the effects of new peer-led and the existing teacher-led sex education given to 13 and 14-year-olds.

27 schools and 9,000 pupils took part.

In the peer-led programme trained 16-17-year-old peer educators gave three one-hour sessions to younger pupils in the same school.

The researchers then used routinely-recorded data Read more »