10:832:346 Lecture Notes - Lecture 5: Behavioral Risk Factor Surveillance System, Nicotine Replacement Therapy, Randomized Controlled Trial
11 Jul 2017
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Impact evaluation- directed at assessing whether the program"s short term and intermediate objectives have been met. Examples: changing knowledge, skills, attitudes, policy/environment, and behaviors (i. e. , predisposing, enabling and reinforcing factors) in the target audience. Relates to assessing whether you have met your impact objectives . Example: by chance, because of time, other environmental factors. Statistical correlation and/or association between x and y. With program eval, would like to rule out or control for the other factors that could explain the effects. To make judgments about programs, we have an interest in making comparisons. Ideally, want to compare the condition of targets exposed to intervention with estimate of what they would"ve been like if not exposed to. In practice, try to compare with a control group. People who did not get program or exposed to standard, usual program instead of new program. Ideally, control group should be similar in all respects except program exposure.
