A reason why you should not contract with a professional firm for a survey might be that
A) drawing a sample is a complex process
B) they already have a pool of trained researchers
C) they may be trained in the intricacies of questionnaire construction
D) you are never sure if they follow the survey as you would

Question

Quizplus · Accepted Answer

There is a possibility that the professional firm may not conduct the survey as you would have wanted, which could lead to biased or inaccurate results.

A Reason Why You Should Not Contract with a Professional