A city official boasted that the city's police force used criminal profiling to solve crimes and, therefore, should have a higher rate of crimes solved than a city that did not use criminal profiling: "Our city has worked hard to solve crimes, using the method of criminal profiling in solving cases. Our city should have a higher rate of solving violent crimes than cities that do not use this scientific technique." A study of the number of violent crimes solved showed the city did not have a higher rate of crimes solved than other cities not using the technique. An unwarranted assumption that the city official made was that:
A) the city could afford expensive techniques for solving crimes, such as criminal profiling, which requires hiring experts.
B) the city really wanted to improve its rate of solving crimes.
C) the city is using criminal profiling.
D) scientific research has actually shown that criminal profiling is effective.

Question

Quizplus · Accepted Answer

The city official assumed that criminal profiling was an effective technique for solving crimes, without evidence to back up this claim. Therefore, it cannot be assumed that the use of criminal profiling would result in a higher rate of crimes solved compared to cities that do not use this technique.

A City Official Boasted That the City's Police Force Used