Let your practice observations (based on the best available information) be your guide to action, and let the evaluation design follow from those decisions. Recognize you can add As, Bs, Cs, and Ds ....

Let your practice observations (based on the best available information) be your guide to action, and let the evaluation design follow from those decisions. Recognize you can add As, Bs, Cs, and Ds . . . ad infinitum. For every combination, however, you must be responsible for the answers to questions such as:

a. Did positive change occur in the client’s target?

b. Will changes from previous interventions be apparent or carry over? (Should you have a return to baseline to make these changes clear, or will change appear even with a new intervention?)

c. Will your choices of designs make clear the likely causal patterns among factors?

d. Are you sensitive enough to the client to conclude the program with a stable desired goal attained within the social and cultural definitions of what your client sees as desirable?