An advantage of observational studies is that:
A) they can provide accurate descriptions of behaviour.
B) they do not provide hypotheses to be tested.
C) they can answer questions about cause and effect.
D) the presence of observers can alter the behaviour being observed.

Question

Quizplus · Accepted Answer

Observational studies allow researchers to accurately describe behaviour in natural settings, which can be useful for developing theories and generating hypotheses.

Answer: D 
 One disadvantage of observational studies is the potential for the presence of observers to alter the behaviour being observed, a phenomenon known as the observer effect.

An Advantage of Observational Studies Is That