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the controlled group is the group that participates in the experiment under normal conditions with no added drugs
with a experimental group there is a group that will recieve the drug or tested subject that is suppose to make them act different.
the dependent variable is the effect while the independent variable is the cause
live
disadvantages
they could respond different if they knew they where beoing sudied
advantages
you get to see how they would naturally act in a environment they are use 2
control of environment
List the advantages and disadvantages as a note or add structure to the tree