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What are 3 factors that must be kept in both control group and experimental group?
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What is the one factor that is different between the control group and the experimental group?
By definition, the control group is what the experimental group is measured against. For example, if one is doing an experiment to measure the effect of a drug on blood pressure, the experimental group would receive the drug and the control group would receive the placebo, or blank. The blood pressure of both groups would be measured after ingestion of either the drug or placebo and any differences in blood pressure we would attribute to the effect of the drug. Care must be taken, however, that the two groups are as identical as possible and that all procedures are carried out identically. Furthermore, to eliminate even more bias, both the researchers and the experimental subjects would not know whether they were receiving drug or placebo (a double-blind study).
What is a double blind drug?
A double-blind study means that neither the test subject (human) or the researcher administering the study knows whether the test subject is receiving the experimental treatment or the control treatment. Often in human drug tests, the control treatment will be a placebo. This ensures that neither party can make any expectations as to whether they should or shouldn't be seeing results. This is important because sometimes researchers will botch their results to coincide with their hypothesis. This also ensures that both control and experimental groups experience the "placebo effect" more or less equally
What are the similarities between aluminium and boron?
Both are members of the 13th group of the Periodic Table (boron group).
Are proteins acidic or basic?
acidic
How many outermost electrons do lithium and potassium have?
Both lithium and potassium are in Group I of the Periodic Table, so they both have one valence electron.
What is the same between the experimental and control group?
The similarity between the experimental group and the control group is that in both cases, results are expected.
What conditions must be met if you want to have a scientifically valid sample for a study?
You must have a control group, an experimental group, an experimental variable (also called the independent variable), and a response to be measured (also called the dependent variable). The experimental variable is applied only to the experimental group, so that any difference between the control group and experimental group is due only to the experimental variable. Both the control group and experimental group must have the same conditions, except for the experimental variable.
The experimental procedure in which both the experimenter and subject are unaware of who is in the experimental and who is in the control group is referred to as the?
Double blind experiment.
What is the name for an experiment in which a control group is compared with an experimental group?
The control group.
Is an investigation in which a group that receives some experimental treatment is compared to a group that does not receive the experimental treatment.?
An investigation in which a group that receives some experimental treatment is compared to a group that does not receive the experimental treatment can be called a placebo-controlled study or a comparative experiment, both of which are types of clinical studies. The group receiving the experimental treatment is called the treatment group, and the group that is not receiving the experimental treatment is called the control group.
Why should the sample size of the control group be the same as the size of the experimental group?
In a scientific experiment, the control group and the experimental group are treated the same way except for the variable being tested. Because the margins of error increase as the sample size gets smaller, both groups should be the same size.
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.
What is the group of participants chosen for an experiment called?
The group of participants chosen for an experiment is called the experimental group. This group is exposed to the intervention or treatment being studied to compare results with a control group that does not receive the intervention.
Why is the control and experimental group needed for an experiment?
The control group is necessary to know if the factor being tested is making a difference in the experimental group. Both should be subject to the same conditions, except for the one condition or factor being tested on the experimental group. Differences between the outcomes of the two groups, good or bad, can then be attributed to the one factor that is different. Without the control, it would be most difficult to tell what the factor being tested had done, because it's not really possible to tell what would have happened without it.
What is the one factor that is different between the control group and the experimental group?
By definition, the control group is what the experimental group is measured against. For example, if one is doing an experiment to measure the effect of a drug on blood pressure, the experimental group would receive the drug and the control group would receive the placebo, or blank. The blood pressure of both groups would be measured after ingestion of either the drug or placebo and any differences in blood pressure we would attribute to the effect of the drug. Care must be taken, however, that the two groups are as identical as possible and that all procedures are carried out identically. Furthermore, to eliminate even more bias, both the researchers and the experimental subjects would not know whether they were receiving drug or placebo (a double-blind study).
In the experimental group in spallanzanis experiment the?
both remained clear
How are hypothesis test?
By collecting data. Hypotheses are tested through experimentation, which can be manifest in an infinite amount of ways. The common ground in all hypothesis testing is that both a control (a group that is free of experimental manipulation in the studied variable), and an experimental group (a group with one experimental variable manipulated to test the effect of this variable) are needed to understand the question raised in the hypothesis.
