Impact evaluation is a systematic method used to assess the changes that can be attributed to a specific intervention, program, or policy. It helps determine whether the intended outcomes were achieved and to what extent. By comparing the situation before and after the intervention, evaluators can identify the direct effects and measure the overall effectiveness of the initiative. This process often involves various research methods, including surveys, interviews, and statistical analysis. Impact evaluation is crucial for organizations, such as nonprofits and government agencies, as it provides evidence-based insights that inform future decisions and improve program design.