What Is The Double Blind Study
If participants know which group they are assigned to there is a risk that they might change their behavior in a way that would influence the results.
What is the double blind study. Double blind trials are seen as the most reliable type of study because they involve neither the participant nor the doctor knowing who has received what treatment. Double blind placebo controlled clinical trial. This double layer will minimize the effects of some lurking variables.
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. Double blind study in a double blind study neither the medical team nor the participants are aware of the treatment distribution. Double blind study a study in which neither the subject nor the investigator nor the research team interacting with the subject or data during the trial knows what treatment a subject is receiving e g active or placebo.
It is considered a go to study design for many reasons that are mainly ethical and psychological and it ensures the most valid results at the end of the research because both participant s and team s bias is eliminated. It is called this because two parties are kept in the dark about the experiment. Thus a double blind placebo controlled clinical trial is a medical study involving human participants in which neither side knows who s getting what treatment and placebo are given to a control group.
Both the subject and the person administering the treatment do not know whether the subject in the experimental or control group. 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.
