InterAction asked its Evaluation and Program Effectiveness Working Group (EPEWG) to contribute an article to Monday Developments on the evaluation issues of greatest concern to us today. We received input from a range of program area and context perspectives. A common thread throughout the responses was a desire to figure out how to give as much attention to accountability to those we seek to serve, evidenced in longer-term outcome and impact assessments, as we give to accountability related to short-term output measures, often prioritized by donors and charity watchdogs. Accountability to whom and for what? With what evidence?