BUSINESS ADMINISTRATION
RESEARCH METHODOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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an experiment in which the participants are unaware of which participants received the treatment
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an experiment in which neither the experimenter nor the participants know which participants received which treatment
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the listing and summarising of data in a practical, efficient way
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a graph of frequency distribution shaped like a symmetrical, bell-shaped curve; a graph of normal distribution
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Detailed explanation-1: -A type of clinical trial in which only the researcher doing the study knows which treatment or intervention the participant is receiving until the trial is over. A single-blind study makes results of the study less likely to be biased.
Detailed explanation-2: -A type of clinical trial in which neither the participants nor the researcher knows which treatment or intervention participants are receiving until the clinical trial is over. This makes results of the study less likely to be biased.
Detailed explanation-3: -Single-blind usually means that the research participant is not told of the treatment assignment. Double-blind usually means that the research participant, investigator, study coordinator/nurse, study sponsor, and in some cases the data analyst are kept unaware of the treatment assignment.
Detailed explanation-4: -In a single-blind study, only the participants are blinded. In a double-blind study, both participants and experimenters are blinded.
Detailed explanation-5: -A double-blind study can be a useful research tool in psychology and other scientific areas. By keeping both the experimenters and the participants blind, bias is less likely to influence the results of the experiment.