How much difference did it make?
Impact evaluations tend to be the most complex in design. Not only does the evaluation of impact carefully examine how much a program contributes to one or many long-term effects, it often incorporates findings from other evaluation types (i.e. context, process, etc.) applied along the planning and implementation path.
Impact is determined when one can:
Many questions can be answered through impact evaluations, including: To what extent does a program increase the number of retained editors? What is the value of transforming participants into retained volunteer editors through a program? How much more or less impactful is a program compared to other programs that also aim to increase retained volunteer editors?