APPROXIMATE METHODS FOR IMPACT ASSESSMENT
Approximate methods for assessing impact have the virtue of requiring less technical knowledge and time, and usually are low in cost. Typically they are based on slim data and usually there are no opportunities to rule out contaminating influences that may account for part of the gross effects. Approximate methods are recommended only in selected cases where more robust approaches cannot be applied for reasons of either time or resources.
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Publication information: Book title: Evaluation:A Systematic Approach. Contributors: Peter H. Rossi - Author, Howard E. Freeman - Author, Sonia R. Wright - Author. Publisher: Sage. Place of publication: Beverly Hills, CA. Publication year: 1979. Page number: 225.
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