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Often, scientific experiments come about because a scientist has a hunch that something may be the case. In these circumstances, it is therefore vitally important to guard against the experimenter's expectations clouding the results, as he or she may have a tendency to see what he or she wants to see. The best way currently known to achieve this is the double-blind control method. Say there are 100 subjects. A chemist prepares 50 genuine pills, and 50 identical-looking pills that do not contain the substance being tested (placebos). He puts them into bottles labelled 1-100, as randomly as possible, taking note of which bottle has a real pill and which a placebo, but he does not show this list to the experimenter. Thus neither the experimenter nor the subject know whether the pill is real or not (double blind). Therefore, when the patient reports the effects and the experimenter does her examination, neither can be influenced by prior expectation. Once the results are in, they are tabulated against the list of who got what, and the true effectiveness can be assessed honestly. With life-preserving drugs, giving a placebo may not be an option, so some of the protocol's protection may have to be sacrificed, say by comparing with the recorded effects of previous drugs that were supposed to do the same thing.
What else can I help you with?
In an experiments what happens to the control group?
The control group serves as a baseline for comparison with the experimental group. It does not receive the experimental treatment or intervention, allowing researchers to measure the effect of the treatment by comparing the results of the control group to those of the experimental group.
What is the experimental group compared to?
The experimental group is compared to the control group in a scientific experiment. The control group serves as a baseline for comparison, as it does not receive the intervention or treatment being tested, allowing researchers to assess the impact of the intervention on the experimental group.
What scientific term could describe the group of prisoners who changed their diet in gold Berger's experiment?
The scientific term that could describe the group of prisoners who changed their diet in Goldberger's experiment is the "experimental group." This group would be compared to a control group to determine the effects of the changed diet.
Is there a control group when dissolving sugar?
In a scientific experiment testing the dissolving of sugar, a control group is not typically necessary. The process of dissolving sugar is a well-known and established phenomenon, so the focus is usually on the variables that affect the rate of dissolution rather than comparing against a control.
What factor distinguishes the expermental group from the control group?
The factor that distinguishes the experimental group from the control group is that the experimental group is subjected to the experimental treatment or intervention being studied, while the control group does not receive this treatment and is used as a baseline for comparison.
What is a contol group?
A control group is a few items that are used as a base to compare results. They are neutral and generally used in scientific experiments.
What is a sentence that uses control group?
In a scientific study, the control group is a set of subjects that does not receive the treatment being studied, used for comparison to evaluate the effectiveness of the treatment on the experimental group.
If a doctor were conducting a survey to determine the effectiveness of a new medicine what would his control group consist of?
Scientific controls allow experiments to study one variable at a time, and are a vital part of the scientific method.In a controlled experiment, two virtually identical experiments are conducted. In one group the treatment is applied. In the other, the control group, the factor being tested is not applied.It is important that the tests are conducted 'blind' - i.e. nobody participating in the test (doctors or patients) must know who is in what group or which group is receiving what medicine.
Do all experiments need to have a control group?
yes all experiments need to have a control
Why do you need to have a control group when conducting experiments?
The control group gives you something to compare the results to.
Why should expieriments have a control group?
The control group in an experiment is the group that nothing is done to. The reason why there is a control group in experiments is to compare it with the group that has been tested.
What is a constant group in a science experiment?
This would be 'the control group' which experiments are compared to.
What are main parts of controlled experiments?
control group & variable
What is a control in a scientific experiment?
A control refers to the "control group" in a scientific experiment. The control group is compared to the experimental group. For example, pretend you are experimenting to see if a drug works. Group A (The experimental group) is given the real drug, and Group B (The control group) is given a fake drug (placebo) to compare results.
What is the purpose of the control group in a controlles experiment?
Experiments typically use control groups. One group of people are manipulated and measured, while the control group just stays as they are. The control group is measured against the manipulated group to see what changes.
An experiment setup in which the independent variable is not present is called the?
When conducting experiments in science, it is important to have a baseline for knowing what happens if an independent variable is not present. In science, this is called the control experiment.
What is a control group in an experiment and why do we use them in experiments?
A control group is the normal condition of whatever it is we're experimenting on, and we use them to see if the experiment is doing what we want it to.
