The expected value of sample information (EVSI) estimates the value of a decision to collect additional sample information. Typically, additional research reduces, rather than eliminates uncertainty meaning perfect information is not available. Therefore, EVSI can be utilised to help determine the optimal research design (study population, comparison to be tested, sample size) to maximise both the reduction in uncertainty and the value to the society of conducting the study.

How to cite: Expected Value of Sample Information (EVSI) [online]. (2016). York; York Health Economics Consortium; 2016. https://www.yhec.co.uk/glossary/expected-value-of-sample-information-evsi/

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