Outhwaite, L;    Gulliford, A;    Pitchford, N;      (2019)    A new methodological approach for evaluating the impact of educational intervention implementation on learning outcomes.                   International Journal of Research and Method in Education        10.1080/1743727X.2019.1657081 <https://doi.org/10.1080/1743727X.2019.1657081>.    (In press).    Green open access