What kind of evidence is most effective in persuading stakeholders about a project?

Statistical evidence highlighting benefits is most effective in persuading stakeholders about a project because it provides concrete, quantifiable data that can be analyzed and verified. This type of evidence can showcase potential outcomes and advantages of the project in an objective manner, which often resonates more strongly with stakeholders who rely on facts and figures for decision-making. By presenting statistics, one can effectively illustrate how the project will impact key performance indicators, return on investment, or other relevant metrics that matter to stakeholders. This helps to build a compelling case grounded in reality rather than emotion or subjective opinion, thereby increasing the likelihood of gaining support for the project.