1)Using your evaluation plan, describe it briefly and discuss the appropriateness, benefits, and limitations of using two of the following designs: (a) case study, (b) time-series, (c) causal –pre- and posttest, (d) comparison

1)Using your evaluation plan, describe it briefly and discuss the appropriateness, benefits, and limitations of using two of the following designs: (a) case study, (b) time-series, (c) causal –pre- and posttest, (d) comparison.

2)Since it is usually impossible to evaluate the whole population of a large program, evaluators must select samples. Using your evaluation plan, discuss the possible benefits and limitations of selecting a random sample or using purposive sampling to obtain the target population.