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Which of the following does not represent a potential disadvantage of trying to conduct an experiment?
Conducting an experiment can be very time-consuming and costly.
For ethical reasons, it may not even possible to conduct certain types of experiments.
An experiment cannot be used to establish a cause-and-effect relationship between the treatment and the response.
Some experiments (such as those involving medication) can only be completed with a group of volunteers. This may limit how well we are able to generalize our findings to the entire population.
In an experiment, we should control for the effects of outside variables. This can be difficult to do.