Program design is a research area that focuses on creating effective and efficient programs to address various social, health, or educational issues. This field involves designing interventions, strategies, and activities that aim to bring about positive change in individuals, communities, or organizations. Program designers typically follow a systematic process that includes needs assessment, goal setting, intervention design, implementation planning, and evaluation. The ultimate goal of program design is to develop evidence-based programs that are sustainable, scalable, and impactful in achieving desired outcomes.