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

Question

Quizplus · Accepted Answer

Dr. Smith was using a time-series design where data is collected over time to observe changes in behavior or outcomes. In this case, the police records were being examined each week for six months to see if the installation of the cameras had an effect on the number of crimes committed in the area.

DrSmith Was Interested in Whether There Would Be a Reduction