We present a framework to help those working in Extension connect program designs with appropriate evaluation designs to improve evaluation. The framework links four distinct Extension program domains--service, facilitation, content transformation, and transformative education--with three types of evaluation design--preexperimental, quasi-experimental, and true experimental. We use examples from Extension contexts to provide detailed information for aligning program design and evaluation design. The framework can be of value to various audiences, including novice evaluators, graduate students, and non-social scientists, involved in carrying out systematic evaluation of Extension programs.