Glossary D

Double-bind is defined as a case in which an individual is told two (2) contradictory messages by an important figure in his or her life, such that every response he or she makes with regard to that figure is wrong. Double-bind situations, at one time were believed to contribute to the development of Schizophrenia.

Deutsch: Doppelblind / Español: doble ciego / Português: duplo cego / Français: double aveugle / Italiano: doppio cieco

Double-blind is defined as an experimental design in which neither the subjects nor those who dispense the treatment condition have knowledge of who receives the treatment and who receives the placebo.

In the context of psychology, double-blind refers to an experimental procedure in which neither the participants nor the experimenters know who is receiving a particular treatment. This method is used to prevent bias in research results, ensuring that the outcomes are influenced solely by the experiment itself and not by participants' or experimenters' expectations.

A Double-blind control refers to procedure in outcome research that prevents bias by ensuring that neither the subjects nor the providers of the experimental treatment know who is receiving treatment and who is receiving a placebo.

Double-blind design refers to a Research design in which neither the experimenter nor the participants know who is in the experimental Group and who is in the Control group.

Double-blind experiment is defined as an experimental procedure in which neither the researcher nor the patient knows whether the patient received the real treatment or the placebo until pre-coded records indicating which patient received which are consulted. It is designed to reduce the possibility that expectations for success will increase evidence for success. Moreover, Double-blind experiment is a study in which both the researchers and the participants are unaware of which experimental condition the participants are in, in order to prevent demand effects

Double-blind procedure refers to a procedure for circumventing the effects of experimenter or participant expectations. In a double-blind study, neither the participant nor the experimenter knows what treatment the participant is receiving until the very end of the study. Double-blind procedure, moreover refers to an investigation where neither subjects nor investigators know who members of experimental and control groups are. Please see Singleblind procedure.)

Double-blind research refers to a research study in which both the researcher and the participants are unaware of the predicted outcome.

Double-blind research design refers to an experimental design in which the subjects and the principal investigator are not aware of the experimental treatment order.