Evaluability refers to the extent to which a program or intervention can be assessed for its effectiveness. It involves determining whether the goals and outcomes of a program are clear and measurable, allowing evaluators to analyze its impact. This concept is crucial in ensuring that resources are used efficiently and that stakeholders can make informed decisions based on the evaluation results. In practice, evaluability helps identify potential challenges in measuring success and guides the development of evaluation plans. By focusing on clarity and feasibility, organizations can enhance their understanding of programs like community health initiatives or educational reforms, ultimately leading to better outcomes and improvements.