Lortie-Forgues and Inglis (2019) convincingly demonstrate that 40% of rigorous, large-scale education trials are uninformative about impact. However, they and others dismiss the value of larger trials for solving this problem, based on a miscalculation. Contrary to this, I argue that making trials larger is a feasible and affordable way of making them more informative.
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3.
Lortie-ForguesH.InglisM. (2019). Rigorous large-scale educational RCTs are often uninformative: should we be concerned?Educational Researcher, 48(3), 158–166.
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