This paper reflects on the evaluation of and findings from a nationwide programme of physics engagement activities hosted by 10 science centres across the UK. We discuss our findings indicating the affordances of the programme with reference to the wider literature in order to draw out elements of the project that may be useful for other science learning and engagement initiatives. In particular, we discuss findings that relate to contemporary research and policy interests around the engagement of girls in science, the key ages at which young people’s views may best be influenced, the importance of explicating the nature of ‘real-world’ content and careers, and the value of collaborative partnerships.

Whilst welcoming Jensen’s response to our original paper, we suggest that our main argument may have been missed. We agree that there are many methods for conducting impact assessments in informal settings. However, the capacity to use such tools is beyond the scope of many practitioners with limited budgets, time, and appropriate expertise to interpret findings.
More particularly, we reiterate the importance of challenging the prevailing policy discourse in which longitudinal impact studies are regarded as the ‘gold standard’, and instead call for a new discourse that acknowledges what is feasible and useful in informal sector evaluation practice.