Answer:
This researcher's work is an evaluation of: Efficiency.
Explanation:
By looking at the work of researcher in which there is a case study of politician who is interested in implementing a statewide welfare reform program. By providing welfare recipients with extensive job training, she believes that the number of welfare recipients will decrease. researcher argues that the crime rate would indeed drop; however, the cost of this drop would be too high.
This researcher's work is an evaluation of Efficiency.