A study found higher rates of crime in cities with an international airport, compared to cities without an international airport .But the study failed to take account of the size of the city (population), and bigger cities tend both to have more crime and to have international airports .The findings of this study suffer from
A)Measurement bias
B)Omitted variable bias
C)Sample selection bias
D)All of the above

Question

Quizplus · Accepted Answer

The study's findings suffer from omitted variable bias because it failed to account for the size of the city, which is a relevant variable that affects both the likelihood of a city having an international airport and the rate of crime.

A Study Found Higher Rates of Crime in Cities with an International