1. This question also appeared on the second mid-term examination. I hope that you do better this time. Explain the research design of an experimental research study. The textbook and I both gave an illustration of the self sufficiency project, whose objective was to evaluate the impact of providing social assistance recipients (single mothers with children) with wage subsidies if they accepted a job and retained it for a while. Another illustration that I mentioned was an evaluation of a job-training program for unemployed workers. (5 points)