In theory-driven evaluation, the need for program theory clarification and holistic assessment usually requires the use of mixed methods. Theory-driven evaluations require two primary tasks: (a) facilitating stakeholders in clarifying or developing their program theory, and (b) empirically assessing program theory. The comprehensive scope of theory-driven evaluation involves the sequential combination of these two tasks, and the program theory shows the needs and opportunities for using various strategies for applying mixed methods. Table 1 lists several strategies for using mixed methods in theory-driven evaluations. According to Table 1, program theory clarification can be conducted by either qualitative or quantitative