In order to study the effects of loud noise on worker productivity, dr. murphy had one group of research participants work in a noisy room and a second group in a quiet room. Those who worked in the quiet room were exposed to the condition

Condition control

Explanation:

Control condition can be defined as the lack of manipulation of an independent variable, that is, the variable is not subject to any type of manipulation or treatment. When a variable is under what the condition control, it fulfills the function of being the basis of comparison for those who are in the condition of experimentation.

The difference between a variable that is control condition and one that is in the experimental condition is that one undergoes manipulation or treatment and the other does not, after this they remain the same.

For a researcher, the variable that is exposed to the condition control serves to compare with the one that has been manipulated, which allows him to see a before and after between both variables.

While it is true that in all experiments there is no control condition, its presence is useful as it allows us to see the scope of the investigation and to analyze the changes present.

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