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A group of experimental subjects that is not exposed to a chemical or treatment being investigated so that it can be compared with experimental groups that are exposed to the chemical or treatment.
cw: An experimental control may be the control group. In general, the experimental control is something that allows you to say that the treatment effects on the experimental group are due to the treatments, rather than anything else.
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What is the difference between control and experimental variables?
Control Variable = kept in constant in a experiment Experimental Variable = changes in a experiment
What in an experiment is the standard used to compare with the outcome?
The control is the standard used to compare with the experimental results.
What is a constant setup experimental setup control setup and an experimental variable?
Control SetupThe constant control set up is where you have every thing "normal" to use to compare your experimental set up with the variable to. This has no variables and is always constant. For example if you wanted to see if plants would grow faster watered with sugar water or plain tap water, your constant control set up would be the plant watered with plain water. Since this is the "normal" condition with no changes it is the control setup.Additionally there are two kinds of controls, positive and negative. Positive controls will have an indication or contain the specific substance that the test or instrument is used for. On the other hand, negative controls don't contain that specific substance or instrument. For example if you were testing the effects of aspirin on inflammation and you gave a group, 20 mgs of a placebo, that would be a negative control. Opposite to that would be a positive control, if you were testing the same thing and instead gave the group 20 mgs of the aspirin.Experimental SetupIn short the part of the experiment that contains the variable is called the experimental setup. This is identical to the control setup except in one way. One change is made to the set up, this change is called the variable. In the example of the plants watered with tap or sugar water, the experimental set up would be the plant watered in the sugar water. Since this is the setup an which you are testing this, it is called the experimental (think of the experimental setup as a test) setup.Experimental variableThe experimental variable is basically what you are changing between the control and experimental setups.In the example, your experimental variable would be what the plant is watered with. So in this case, it would be the sugar water.
What is a experimental group?
In a scientific experiment it is common to split your sample into (at least) two groups. Say you were to study the effect of a new drug on a specific condition, you would have a sample (a group of people with the condition in question e.g. breast cancer), and you would treat all members of the sample the same, with the exception that one group is give the actual drug, and the other group is given a "fake" pill. This fake pill is also called a placebo. The group that is given the real drug is called the experimental group, and the group that is give the placebo is called the control group. This setup attempts to ensure that any effect that is observed is caused by the drug (the experimental condition).
Did the chemist use adequate experimental controls?
Yes, the first chemical reaction (without the enzyme) acted as a control.
Which term describes a type of independent variable used to compare differences in dependent varables?
experimental control
Why is experimental control needed in experiments?
The experimental control is what you compare your experimental data with. Without the control, you can't tell if the variable you are testing is what is causing your results.
What is used as a way to compare values for a dependent variables in many experiments?
experimental control
What do you call an experimental setup in which the experimental variable is missing?
control setup
How is a quasi-experimental design different from a pure experimental design?
pure -absolute control Quasi -have some control
What does control as an experiment means?
A control sample or control group is used to compare with the experimental group or sample. The control sample ideally, should be exactly the same as the experimental sample except that you don't give your experimental treatment to the control sample. Afterwards you compare the 2 samples to see if your experimental treatment had any kind of effect. The control is like a reference point.
What is the relationship between Control and experimental groups?
control groups are those which you keep constant you don't do anything to them and experimental groups are the ones which you are adding something to it to see what happens
Does a control group receive experimental treatment?
the control group does not receive receive an experimental treatment but stay in the same environment.
What is the difference between control and experimental variables?
Control Variable = kept in constant in a experiment Experimental Variable = changes in a experiment
What is the difference between a control groups and experimental groups?
The control is a group that is held constant and is not experimented with, The experimental group is the group that is experimented with
In an experiment the group that is exposed to the variable to be tested is called the?
control group
What is a standard of comparison?
The Experimental Control.
