Describe Martinson’s sample. Where did he get the data used in his study from?

Robert Magnus Martinson was an American sociologist whose 1974 study “What Works?” concerning the shortcomings of existing prisoner rehabilitation programs, was highly influential. It later became known as creating what became known as the “nothing works” While Martinson was a sociologist, his “What Works?” publication gained national attention and arguably impacted the perspective of many key legislators, important legal minds, and millions of Americans. Please answer the following questions.1. Describe Martinson’s sample. Where did he get the data used in his study from?2. Summarize what Martinson believed about prison rehabilitation as indicated by the conclusion he reached in “What Works?”3. Is Martinson’s study methodically sound? Why or why not? In answering this question apply the concepts that you have learned in this class. Consider concepts like sampling, secondary data, and how Martinson categorized certain types of “rehabilitation.”4. Why do you think Martinson’s article gained so much support?