"Program efficacy" refers to how well a program or intervention is able to achieve its desired outcomes or goals. It measures the effectiveness or success of the program in producing the intended results. Full definition
These funds will flow only when investors see movement to a regulatory environment that rewards program efficacy. (educationnext.org)
It is extremely clear to me that this greatest challenge also yields the greatest rewards — clearly for students and learning, but also for demonstrating our own program efficacy. (bythebrooks.ca)
(Using Data to Inform Decisions: How Teachers Use Data to Inform Practice and Improve Student Performance in Mathematics - Results from a Randomized Experiment of Program Efficacy. (usingdatasolutions.org)