previous ... to what?
Who's Lewis? Why was he evaluated?
What previous research was reported about scared straight programs prior to Lewis’ evaluation?
3 answers
the evaluation of a "Scared Straight" program in California by Lewis (1983).
Prior to Lewis' evaluation, what had previous research reported about scared straight programs?
Prior to Lewis' evaluation, what had previous research reported about scared straight programs?
Read, read, read, and take good notes.
http://www.google.com/search?q=%22scared+straight%22+programs+before+1983&oq=%22scared+straight%22+programs+before+1983&aqs=chrome..69i57.14743j0j7&sourceid=chrome&espv=210&es_sm=119&ie=UTF-8
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http://www.google.com/search?q=%22scared+straight%22+programs+before+1983&oq=%22scared+straight%22+programs+before+1983&aqs=chrome..69i57.14743j0j7&sourceid=chrome&espv=210&es_sm=119&ie=UTF-8
If you need help learning how to search, including how to choose good search terms, go here and scroll down to the links under HOW TO SEARCH THE INTERNET:
http://hanlib.sou.edu/searchtools/