|Is a person of group of individuals that use credible and verifiable evidence to form conclusions about performance (e.g. programme or project performance, impact or implementation fidelity) assessed against criteria . Their tasks include planning, organizing and designing evaluations and collecting, analyzing and presenting their findings and recommendations to stakeholders.. They must deal with both internal and external pressures and are therefore expected to display the highest ethical standards, be independent as well as being guided by the principle of objectivity and impartiality in conducting an evaluation.|
- Smith, M. F., in Mathison, Sandra. Encyclopaedia of Evaluation, pp 20, Ed. University of British Columbia. Thousand Oaks, CA: Sage Publications, 2005.
- Imas Linda G. Morra, Rist C. Ray. The Road To Results; Designing and Conducting Effective Development Evaluations pp.495. The World Bank, Washington DC, 2009.