You are either talking about the independent variables or the control group
The Control
The Control
Control
-- Repeat the experiment. If you have the time and money, then five or ten repetitions is an even better idea. -- Compare your results with those of other experimenters. -- Compare your results with the predictions of theory.
as man other scientists do, try the experiment again and compare results
In a experiment, you would need to compare the results to other results to control.
Well basically the "control" group is the part of the procedure or experiment where the specimen or whatever your testing is separated from everything else and nothing is done to it, so you have something to compare your other results to.
so other scientists conducting the same experiment can see and compare results to make a valuable theory.
Yes 99.99% of the time,controls are very necessasry.If you are performing an experiment testing some variable, say (X) , you need to perform a control where everything is the same as the experiment conditions including your (X) variable your testing in the experiment. Therefore, the only difference between your control and your experiment is the variable your testing.Since the variable in your control is kept constant, you can compare the result so the experiment (where the variable was varied) and your control (where the variable was kept constant).Since all other factors in both the control and experiment were the same, you can compare your results
You have to have either done two experiments or read two experiments or read one experiment and do the other in order to compare and contrast an experiment.
The one not experimented on. The control group is used to compare results to, to check that the changes you made during the experiment were responsible for the results seen in those groups. In other words, you use the control to confirm if the results shown in the experiment were caused by the independent variable (the variable that you change and are trying to investigate).
Experimentation in science is done following strict scientific protocols. A basic approach is to first form a hypothesis, which is simply a good guess of what will happen in the experiment. After the experiment you examines the data and compare them with the hypothesis. You then comment on how they may or may not match, and then you could publish the results. It is important that the method of how you conducted the experiment and what that was used is included in the report, so that others might try to duplicate your results. If other scientists do the same experiment and get the same results as you did, your report is then strengthened, and it will therefor gain a higher value of credulity.