Complex sentence: Evaluation of the programme (using a quasi-experimental design) discovered significant positive effects on non-coercive sex within students in intervention groups, they reported having increased confidence in their ability to deal with situations where sexual pressure and force would be used.
Split into simpler sentences: Evaluation of the programme (with the use of a quasi-experimental design) showed a significant positive effects on non-coercive sex within students in intervention groups. Indeed, they reported having more confidence in their ability to deal with situations where sexual pressure and force would be used.