Control Risks Group was created in 1975.
RISKS Digest was created in 1985.
when you are able to to control the outcome of something
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when you are able to to control the outcome of something
The control group in an experiment is the group that nothing is done to. The reason why there is a control group in experiments is to compare it with the group that has been tested.
You use a control group to compare the results of the experimental group to. The control group has the "normal" results. After the experiment, you can tell if and what has changed from the control groups results
they dont
The control group is used for exprimenting
the group that does not change in the experiment VIVI :)
You need a control group to compare your experimental group to something.
A control group is the unaffected group in a science experiment.