A feasibility study is a smaller version of a full-scale evaluation study. It is important to check in advance if the evaluation you have designed will work, which may mean carrying out a feasibility study. This is especially true for more expensive evaluations, such as comparative studies.
A feasibility study can be used after your product is developed (summative evaluation). It can help you to pilot your study design, recruitment and data collections methods. The main idea is to conduct a smaller-scale study recruiting participants similar to people you would want to use your digital product.
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