A Student Completing a Research Project for a Criminal Justice

Multiple Choice

A student completing a research project for a criminal justice class obtained a radar gun for determining automobile speeds and recorded the speeds of automobiles passing a fixed location
Over a period of several hours. The student was unaware that the device needed to be recharged
After two hours of use and that the speeds recorded after two hours were not reliable. What type of
Problem has occurred?

A) nonresponse bias
B) selection bias
C) measurement error