A form of outcome evaluation that assesses the net effect of a program by comparing program outcomes with an estimate of what would have happened in the absence of a program. This form of evaluation is employed when external factors are known to influence the program's outcomes, in order to isolate the program's contribution to achievements or its objectives.

Examines the ultimate impact of a program on some type of community problem.

A type of outcome evaluation that focuses on the broad, long-term impacts or results of program activities. For example, an impact evaluation could show that a decrease in a community's crime rate is the direct result of a program designed to provide community policing.

Evaluating the immediate or short-term effects of a programme. It involves establishing to what extent progress has been made towards meeting programme objectives.

The process of assessing the overall effectiveness of a project in meeting its objectives

An evaluation to determine the effectiveness of a program in producing long term changes in health status ( disease, disability, or death) or health indicators(related conditions or risk behaviors) in a population.

Research designed to identify whether and to what extent a program contributed to accomplishing its stated goals (here, more global than outcome evaluation).

A type of evaluation that focuses on the broad, longer-term impact or results, whether intended or unintended, of a programme or outcome. For example, an impact evaluation could show that a decrease in a community's overall infant mortality rate was the direct result of a programme designed to provide high quality pre- and post-natal care and deliveries assisted by trained health care professionals. See also "country-level impact assessment".

Examination of the effects of a DSM program, including quantitative documentation of a program's costs and benefits, program participation and measure adoption, performance of technologies, and energy impacts.