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Yes, because if there is no control group, the results of the experiment are meaningless. If i had two plants, one I used miracle-grow on and the other I never watered, I wouldn't know if either of my variations (not watering and using miracle-grow) were meaningful without having another plant which lived a normal life (with adequate water) to compare it to.
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Do all experiments need to have a control group?
yes all experiments need to have a control
Do all experiments have a control?
All properly-designed experiments should have some sort of control.
Why do we need a control group in an experiment?
To have something to compare to that was exposed to all the same conditions, except the single variable condition being tested.
What is the purpose of using a control in scientific experiments?
The experimental control provides a base-line result or set of results, from which you can compare the variables' effects against. It's designed to minimize the effects of variables (other than the single independent variable). Control groups are often included in medical or psychological experiments so that the results of an experiment are considered reliable and trustworthy.Example:A mystery-drug cure is being tested. One group of patients is given the drug and the other group is not. The group without the drug will be subject to all the same conditions that the other group are under, thereby seeking to eliminate any unforeseen effecting environmental factors. This makes it possible to compare, and therefore measure, the impact any drug would have.
What is the term for a group of subjects that receives all variables except for the independent variable in an experiment?
control group
Do all experiments need to have a control group?
yes all experiments need to have a control
Do all experiments have a control?
All properly-designed experiments should have some sort of control.
Why is difficult for ecologists to design controlled experiments?
it is difficult to control all variables except the one being tested
Why do we need a control group in an experiment?
To have something to compare to that was exposed to all the same conditions, except the single variable condition being tested.
What is the purpose of using a control in scientific experiments?
The experimental control provides a base-line result or set of results, from which you can compare the variables' effects against. It's designed to minimize the effects of variables (other than the single independent variable). Control groups are often included in medical or psychological experiments so that the results of an experiment are considered reliable and trustworthy.Example:A mystery-drug cure is being tested. One group of patients is given the drug and the other group is not. The group without the drug will be subject to all the same conditions that the other group are under, thereby seeking to eliminate any unforeseen effecting environmental factors. This makes it possible to compare, and therefore measure, the impact any drug would have.
Who used experiments?
we are all scientists. we all use experiments
Why is it sometimes difficult to ecologists to design controlled experiments?
it is difficult to control all variables except the one being tested
Why it sometimes difficult for ecologists to design controlled experiments?
it is difficult to control all variables except the one being tested
Why is it sometimes difficult for ecologists design controlled experiments?
it is difficult to control all variables except the one being tested
Why is it sometimes difficult for ecologist to design controlled experiments?
it is difficult to control all variables except the one being tested
The group that is not altered in an experiment is the?
The group that is not altered in an experiment is the control group, because all conditions are kept the same.
Can you have a sentence with the word control group in it?
Sure. "After all the subjects in the control group take the normal pill we'll give the test group subjects the placebo without telling them.
