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When both the researcher and the participants do not know whether the participants are in the experimental or control group it is known as a?
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The choice of whether a particular organism belongs to the experimental group or the control group should be based on?
Chance
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
We used a formal method of study with control and experimental groups to determine whether plants grew faster or slower when exposed to infrared light. what is the student describing?
Using the scientific method
How do scientists determine whether a hypothesis is correct?
Scientists determine whether a hypothesis is correct by performing experiments. They apply the hypothesized stimulus to one group of subjects and not to another group called the control group. If the experimental group is significantly different statistically from the control group the hypotheses is assumed correct. But, that isn't the end, if it's a significant finding other researchers try to duplicate the experiment. If they are unable to, it brings the hypothesis into question.
What is the control in an expiriment?
The control is the subject in an experiment not introduced to the dependent variable. For instance if you were to test the effect of different types of fertilizer on plants, the control would be the plant with no fertilizer.
What is experimental research design describe its types and importance?
The pre-post design, a treatment group and a control group, and random assignment of study participants. Its importance is to determine whether a program or intervention had the intended casual effect on program participation.
What is double blind trial?
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 is double blind drug trial?
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 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
The choice of whether a particular organism belongs to the experimental group or the control group should be based on?
Chance
What is the different between single blind study and double blind study?
In a single blind study, the subject being studied does not know whether he is part of the experimental group or control group, but the researcher recording the results does know. In a double blind, neither the subject nor the observer knows to which group in the experiment the subject belongs.
Why is a control group needed?
A control group is subjected to the same procedures as the experimental group but does not receive the treatment of the independent variable. In the control group all variables are held constant. It is used as a baseline measure. This helps determine whether any of the resulting effects of the experimental group are due to the independent variable treatment and not to the actions involved in providing the treatment.
The most foolproof way of testing whether a newly introduced method of psychological therapy is truly effective is to use?
A Double-Blind Study
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 is the benefits of a researcher?
free sex and writing about your experiences whether they be good bad or indifferent ;)
What is the independent and dependent variables ithis sentence. A researcher wants to find out whether more intelligent people make healthier diet choices than less intelligent people?
The independent variable is one that can be systematically varied by the researcher across participants. The value of the dependent variable depends on how you manipulate the IV. Thus, the IV is intelligence, the DV is diet choices.
Variables that are always different between the experimental and the control groups are?
Independent variables. If the treatment has no effect , the dependent variables for both the control and experimental group may be the same. cw: In some studies, there is no specific control group. For instance, in a drug study where subjects are given a random amount of the drug (from 0 up to some presumed safe level) then you cannot easily tell what the "experimental" group is -- you can't compare everyone else to the two subjects who got a placebo (0 mg/kg). You can tell whether the treatment is having a linear effect, etc.
