DrSmith Was Interested in Whether There Would Be a Reduction

question 47

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

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Definitions:

Proposed Uses

Suggested or recommended ways in which something can be used or applied, often based on research or theory.

Criterion Measure

A standard or benchmark against which the validity of a test score or the performance of an individual can be evaluated.

Grade Point Average

A numerical calculation representing the average value of the accumulated final grades earned in courses over time.

Item Analysis

A series of statistical tests and procedures that can be used to assess for homogeneity in a test.