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You read a published report of a randomised controlled trial of cryotherapy comp...
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You read a published report of a randomised controlled trial of cryotherapy compared to no treatment (control) and try to gauge how large the the treatment effect was. You calculate a Cohen's d standardised mean difference (effect size) and the result is 0.4.
Based on this result, we would conventionally describe the magnitude of this treatment effect as being:
100%
0%
0%
0%