Double Blindness

Double blind definition is of relating to or being an experimental procedure in which neither the subjects nor the experimenters know which subjects are in the test and control groups during the actual course of the experiments. A double blind experiment can be set up when the lead experimenter sets up the study but then has a colleague such as a graduate student collect the data from participants. Blinded research is an.

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Double blind trials are thought to produce objective results since the expectations of the researcher and the participant about the experimental treatment such as a drug do not affect the outcome.

Double blindness. The double blind method is an important part of the scientific method used to prevent research outcomes from being influenced by the placebo effect or observer bias. Term used to described a study in which both the investigator or the participant are blind to unaware of the nature of the treatment the participant is receiving. The type of study that researchers decide to use however may depend upon a variety of factors including characteristics of the situation the participants and the nature of the hypothesis under examination.

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