In attempting to study police officers' attitudes towards their supervisors,Les surveys 25 police officers from the day shift.In order to ensure the finding has external validity,Les should
A) use a larger sample of officers from the day shift.
B) randomly assign officers to work under specific supervisors.
C) sample officers from all shifts in the department.
D) use confounding variables.

Question

Quizplus · Accepted Answer

Sampling officers from all shifts in the department will ensure that the findings have external validity by representing a wider range of officers and their attitudes towards supervisors, beyond just those from the day shift. Using a larger sample from the day shift alone may not accurately reflect attitudes in the entire department, and randomly assigning officers to specific supervisors or using confounding variables may not address the issue of external validity.

In Attempting to Study Police Officers' Attitudes Towards Their Supervisors,Les