Yesterday, I was at a validation forum in which results of research supported by public funds were presented. One of the projects which is relevant to Devcompage was about impact, rate and spatial dissemination of agricultural technologies. Effectiveness of communication strategies used was measured through perception data, categorized into highly effective, effective, and so on — while their assessment of communication strategies was a mere listing of diffusion methods used — meetings, agro-fairs, radio program and techno-demo. What the report terribly lacked were objective indicators of media effectiveness and a more informed analysis of the diffusion and uptake of agricultural technologies covered by the study. The ACIAR scoping study on policy linkages could very well provide the overall context that will help one understand diffusion and adoption of agricultural technologies in the Philippines.
The next day, I received a copy of the impact evaluation report on a media campaign in Vietnam. Undertaken by two IRRI staff –Dr. Debbie Templeton, former impact specialist, and Zenaida Huelgas, associate scientist — this impact evaluation report is a fine example of how the use of an assessment framework, objective indicators, and careful analysis could provide scientific rigor. The report titled, “Three Reductions, Three Gains (3R3G) Technology in South Vietnam: Searching for Evidence of Economic Impact” presented evidence of adoption of 3R3G in terms of lowering seed rates and the resulting changes in farm production/cost structure and farmer profits were measured.
What is impact evaluation?
The World Bank independent evaluation group defines impact evaluation as the systematic identification of the effects – positive or negative, intended or not – on individual households, institutions, and the environment caused by a given development activity such as a program or project. Alternatively, we can say that Impact evaluation is an approach which measures the outcomes of an intervention apart from other possible factors. It is intended to determine whether the program had the desired effects on individuals, households, and institutions and whether those effects can be attributed to program intervention. Impact evaluations can also ascertain unintended consequences, whether positive or negative, on beneficiaries.

External review team visit fertilizer omission plots demonstration, Sragen, Central Java
Impact evaluations can be costly Rigorous impact evaluations can be costly. The World Bank has estimated that the average cost of a rigorous impact evaluation can run up to US$200,000 considering the cost of consultants. But the World Bank Independent Evaluation Group (IEG) came up with a booklet that details how one can conduct quality impact evaluations under budget, money and time constraints. The IEG website is a gold mine of useful and reliable information on monitoring and evaluation which must be bookmarked by all Devcompage readers.