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I want to know if a medication has the desired effect. I'm going to give half the subjects the 'live' med, and half will get a placebo. The subjects will not know which one they are getting. That's one level of "blind". Studies show that there is a measurable affect based on the fact that the person distributing the med's knows who is getting the med and who is getting the placebo. So I am going to package the med's and give them to the distributing nurse, and the nurse will not know who is getting the med and who is getting the placebo. That is "double blind" model.
Wiki User
∙ 6y ago
Wiki User
∙ 12y agoA 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
Wiki User
∙ 10y agoA double blind trial means that both the subject and the researcher are unaware of which subjects are being given a placebo and which are recieving the trial drug.
This is aimed at reducing the amount of bias in the trial.
Wiki User
∙ 10y agoWhen doing an experiment that involves human beings, such as testing an experimental drug, the experimenter and the subject may, even subconsciously, set expectations as to what the result will be. Some subjects will receive the trial drug, while others receive a placebo (a substance that has no effect). In a double-blind test, neither the experimenter nor the subject knows which is which, removing the possibility of subconscious bias affecting the results.
Wiki User
∙ 13y agoThis strict type of clinical trial eliminates any possibility of bias. Neither the participant or the researcher knows if the treatment or a placebo has been administered.
Wiki User
∙ 11y agoThe study team nor the subject is aware who is getting the study drug vs the placebo
Wiki User
∙ 11y agoA double-blind study may be augmented by a cross-over experiment, in which experimental subjects unknowingly become control subjects, and vice versa, at some point in the study
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What is a blind trial?
A blind trial is a trial in which the subject does not know if he is part of the experimental group or the control group. In the case of a pharmaceutical trial, a blind study would be one in which the patients participating in the study would not know if they were being given the actual drug or a placebo. A double-blind trial is one in which neither the patients nor the doctors involved in the study know which patients are in the control group and which patients are in the experimental group.
True o false a double-blind experiment is used to increase the placebo effect?
False
What is a double dummy study?
A double dummy study is a technique in administering supplies in a clinical trial. It refers to a method of blinding wherein the placebo is administered to both treatment groups.
What did watson and crick contribute to the study of DNA?
They determined the structure of DNA, it is a double helix
During which phase of meiosis does crossover occur?
prophase I
Why might a double-blind study yield more reliable than a single blind study?
wqeeqweqwe
What are the disadvantage of a double blind study?
ethical reasons
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 might a double-blind study yield more reliable results than a single-blind study?
In single blind studies, the experimenter (or observer) is aware of who or what belongs to the control group and the experimental group.In double blind studies, the experimenter is not aware of who/what belongs to which group. This is to eliminate the subjective bias an experimenter may have.
What kind of study is it when neither the experimenter nor the participants know who is in the control group and who is in the experimental group?
This is called a double-blind study.
What kind of study doesn't tell the participants or the researchers which group is is the control or experimental group?
Double blind.
What is the name of the study where neither the researchers nor the participants know who is getting the real treatment?
double blind
How do you do a double crossover in basketball correctly?
uhh
When is a double-blind study not possible?
A double blind surgery is not possible when the medical intervention a patient is getting cannot be kept from them, such as a surgery. Both the scientist and the participant in the trial know exactly what the participant is getting done in the trial.
When a study is designed so that neither the subjects nor the experimenters know which subjects are in the treatment group and which ones are in the control group the study is called a experime?
double blind
Double-blind studies control for?
Double-blind studies control
What is a blind trial?
A blind trial is a trial in which the subject does not know if he is part of the experimental group or the control group. In the case of a pharmaceutical trial, a blind study would be one in which the patients participating in the study would not know if they were being given the actual drug or a placebo. A double-blind trial is one in which neither the patients nor the doctors involved in the study know which patients are in the control group and which patients are in the experimental group.
