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RT @ajhatswell: @statsepi Not directly directly but very relevant, is this excellent paper that you can cite. The problem with using histo…
RT @ajhatswell: @statsepi Not directly directly but very relevant, is this excellent paper that you can cite. The problem with using histo…
RT @ajhatswell: @graham74GC Fantastic paper by Moroz et al. looking at when historical data was used to power trials, unsurprisingly in sai…
Comparison group participants often do better than expected in sample size calculation, 3.8% better on average http://t.co/OlCZLXZ6VZ
Comparison group participants often do better than expected in sample size calculation, 3.8% better on average http://t.co/OlCZLXZ6VZ