Impact Evaluation (IE) assesses whether programs have achieved their intended goals of improving the well-being of individuals attributed to the particular program or intervention.

Imas and Rist (2009) mentioned three types of questions that the evaluation should address:

  1. Descriptive questions. The evaluation seeks to determine what is taking place and describes processes, conditions, organizational relationships,and stakeholder views.
  2. Normative questions. The evaluation compares what is taking place to what should be taking place; it assesses activities and whether targets are accomplished.
  3. Cause-and-effect questions. The evaluation examines outcomes and tries to assess what difference the intervention makes in outcomes.

Some of the questions that we should ask before conducting an IE are:

  • Who is the target?
  • What are their needs?
  • What is the program seeking to change?
  • What is the precise program or part of program being evaluated?