Program managers and staff frequently informally assess their program's effectiveness: Are participants benefiting from the program? Are there sufficient numbers of participants? Are the strategies for recruiting participants working? Are participants satisfied with the services or training? Do staff have the necessary skills to provide the services or training? These are all questions that program managers and staff ask and answer on a routine basis. Evaluation addresses these same questions, but uses a systematic method for collecting, analyzing, and using information to answer basic questions about a program - and to ensure that those answers are supported by evidence. This does not mean that conducting an evaluation requires no technical knowledge or experience - but it also does not mean that evaluation is beyond the understanding of program managers and staff.