There is no strict limitation on the number of experts required in a Fuzzy Delphi Method study. The number of experts you involve can vary based on several factors, including the complexity of the problem, the diversity of expertise needed, and the resources available. However, a common range is typically between 10 to 15 experts.

The goal is to have a sufficiently diverse and knowledgeable group of experts to provide valuable input and reach a consensus or convergence on the topic under study. Too few experts may lead to limited perspectives, while too many experts may make the process unwieldy. The key is to strike a balance that best suits the specific research question and objectives of the Delphi study.

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