Glossary D
Glossary D
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.
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.)