Definition
The double-blind design describes an experimental procedure in which neither the participant nor the experimenter are aware of which group (i.e., experimental or control) each participant belongs to. The key that indicates in which group each participant belongs to is kept by a third individual and not given to the experimenter until the study is over.
Description
A Double-blind design designates a rigorous way of carrying out an experiment in an attempt to minimize subjective biases on the part of the experimenter and on the part of the participant [2–7]. A Double-blind design is most commonly utilized in medical studies that investigate the effectiveness of drugs. Participants are randomly assigned to the control or experimental group and given random numbers by a third party, who encodes the drugs with matching random numbers. The investigational drug is administered to the experimental group and the placebo substance (the word placebo derives from a Latin word meaning...
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References
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Anastassiou-Hadjicharalambous, X., Stylianou, M. (2011). Double Blind Design. In: Goldstein, S., Naglieri, J.A. (eds) Encyclopedia of Child Behavior and Development. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-79061-9_888
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DOI: https://doi.org/10.1007/978-0-387-79061-9_888
Publisher Name: Springer, Boston, MA
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