Power of a study

Power of a study
Мощность исследования
Мощность обозначает вероятность обнаружения ожидаемого различия между двумя группами лечения, если оно существует или, иными словами, что нулевая гипотеза будет отклонена, если она ложная. Целью любого клинического исследования является достижение высокой вероятности обнаружения различия между способами лечения. Мощность исследования во многом зависит от размеров выборки, числа оцениваемых исходов и некоторых других факторов. В большинстве контролируемых исследований для обнаружения клинически значимой разницы используется мощность как минимум 80%.

English-Russian glossary of clinical practice. 2002.

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