Multiple Choice
Dr.Smith was interested in whether there would be a reduction in the number of crimes in the central city once closed-circuit cameras went up and were monitored by police.To accomplish this study Dr.Smith looked at the police records for the four square block area where the cameras were installed each week for six months.Dr.Smith was using what method?
A) cohort design
B) time-series design
C) classical experiment
D) quasi-experimental design
Correct Answer:
Verified
Correct Answer:
Verified
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