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To compare data
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In this experiment what is the control?
True
Why is a control group needed in any experiment?
A control group creates a 'yard-stick' to measure any changes in the experiment. For example, suppose you're testing a new diet pill on 100 people - you'd only give the pill to half the group, leaving the other half as a 'control' to see if the diet pill actually works.
Why is a control needed in an experiment?
The control group gives you something to compare the results to. For example, in a medical trial for a new medicine, one group will receive sugar pills. Without this control group, it means nothing if 50% of those treated with the real medicine get better. The control group may have the same results, better results, or worse results. This tells how effective the medicine is. The same is done with any type of experiment.
Describe the control group and the experimental group in an experiment to determine whether using antibacterial soap affects the total number of illnesses a person gets in one month?
control: the group of people who don't use any soap
What are science controls?
In an experiment, the control is the group to which nothing is done. It serves as a baseline to measure any changes that might occur to the group or groups that to which external variable is applied.
What is a role in a control group in any experiment?
it acts as a source. a dependent variable that isn't altered by any independent variables.
In an experiment there are two groups. Which group is not changed in any way?
the control.constantif you make no changes, then its not called an experiment...The control is variable
In this experiment what is the control?
True
Is the control what you keep the same?
In any experiment there is always a control group (which has normal characteristics) and an experimental group (to look for character of interest).Control group is also known as placebo of wild type in some literature.In any experiment, data obtained from both the set up should be closely monitored.
Why do you need a control group and a experimental group?
A control group is not provided any treatment, while the experimental group is the one to which a treatment is applied. The control and experimental groups are chosen to be as similar as possible, so that the observed effect (if any) can be attributed to the variable: what only the experimental group consumes, uses, or participates in.
The group in an experiment that is not exposed to the tested variable is called the group?
An unexposed subject is the "control" for the experiment. The purpose is to establish an idea of what would normally occur outside the testing procedure. Similarly, in human tests, an inactive "placebo" is given to some subjects to verify that the changes occur independently of the psychosomatic (belief-driven) effects. In a "double blind' experiment, the person distributing the medication also does not know whether any particular individual is receiving the actual drug or a placebo. This is hidden in coded form until the results are recorded.
What is the purpose of the control group?
The purpose of a control group is to show what would happen under normal conditions. It serves as a comparison to the results you receive from the manipulation of the independent variable on the dependent variable. If a control group is present in an experiment, one can be more certain that the independent variable is really responsible for the observations.
Why is a control group needed in any experiment?
A control group creates a 'yard-stick' to measure any changes in the experiment. For example, suppose you're testing a new diet pill on 100 people - you'd only give the pill to half the group, leaving the other half as a 'control' to see if the diet pill actually works.
Example of control group?
The control group is the one that is not manipulated in any way. Suppose we are testing the effect of studying on test scores. The group that did not study would be the control group. The group that did study would be the experimental group.
Why must controls be used in fertilizer experiment?
to elliminate soures of error
Why is a control needed in an experiment?
The control group gives you something to compare the results to. For example, in a medical trial for a new medicine, one group will receive sugar pills. Without this control group, it means nothing if 50% of those treated with the real medicine get better. The control group may have the same results, better results, or worse results. This tells how effective the medicine is. The same is done with any type of experiment.
Describe the control group and the experimental group in an experiment to determine whether using antibacterial soap affects the total number of illnesses a person gets in one month?
control: the group of people who don't use any soap
