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in at least 150 words justify the need for a control in an experiment

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A control group allows a scientist to compare it to the other group or groups in an experiment. If a scientist notices a significant difference between the control group and one or more of the other groups, he can logically lead to the conclusion that the independent variable has an impact on the dependent variable. A scientific control is an experiment or observation designed to minimize the effects of variables other than the independent variable. This increases the reliability of the results, often through a comparison between control measurements and the other measurements.The definition of a control experiment is a test where the person conducting the test only changes one variable at a time in order to isolate the results. An experiment where all subjects involved in the experiment are treated exactly the same except for one deviation is an example of a control experiment.Essentially, a control variable is what is kept the same throughout the experiment, and it is not of primary concern in the experimental outcome. Any change in a control variable in an experiment would invalidate the correlation of dependent variables (DV) to the independent variable (IV), thus skewing the results.

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The need for and purpose of control in some scientific experiments, is what heightens the dependability of your outcomes/data in your experiments. Frequently through a testing amidst the control calculations, as well as all and any other calculations you’ve determined, this is the process you must be read to perform in order to increase the assurance, accuracy, and factuality in your data. Control is so highly significant in an experiment that requires it because it is what enables your experiment to reduce the alterations in all of the other variables in your experiment, besides of course the only, most vital one, that is necessary and required to be tested. The control variable in experiments regularly vastly modifies the future concluding experimental prediction testing results. You need a control variable/group when performing and completing a research experiment to help you focus on the main point to begin with, the change variable. In an experiment the primary focus is observing change in a variable. The significant job to take care before actually beginning to carry out your experiment, is to get rid of all other variables, besides the one that’s required to be tested.

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