1. Describe in detail, the logic of an outcome evaluation that makes use of a traditional two group, randomized experiment. Specifically, what does this evaluation design attempt to do in order to answer the central question of program effectiveness? In addition, describe each of the following threats to internal validity (selection bias, maturation and history effects) and discuss in specific detail how an experimental design can control for these potential threats.

2. Describe in detail the three possible Accounting Perspectives an evaluator may use
when conducting a Cost-efficiency analysis.