In a study of whether a drug might reduce depression, research participants were assigned to take the drug or a placebo. those who took the placebo were in the condition.

Control

Explanation:

In a study of whether a drug might help reduce depression, research participants were assigned to take the drug or a placebo. Those who took the placebo were in the control condition.

In an experiment, the control group are not given the treatment material (drugs in this case). This is to have a basis for comparison of results of the study.

A placebo drug is manufactured not to have any treatment effect on the subjects.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place

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