What is a double-blind experiment? What are some examples.

A double blind study is one where neither the subjects, nor the people recording the data, know which subjects are on the test procedure and which are in the control group. It's important that both groups are 'blind' to avoid any prejudice in the evaluation of the procedure being tested. The best examples are clinical studies of new drugs.

With a double-blind study, the participants and the experimenters have no idea who is receiving the real drug and who is receiving the sugar pill. Double-blind experiments are simply not possible in some scenarios. For example, in an experiment looking at which type of psychotherapy is the most effective.

This is the major reason why market research companies generally prefer to use computers, and double blind experiments, for gathering important data. The Blind Experiment The blind experiment is the minimum standard for any test involving subjects and opinions, and failure to adhere to this principle may result in experimental flaws.

Objectives of this article. By the end of this article, the reader will be able to appreciate the significance and rationale of blinding, recognize which individuals to blind, learn strategies for blinding in difficult situations and develop approaches for managing situations in which blinding is impossible.

A double-blind procedure refers to a procedure in which experimenters and participants are “blind to” (without knowledge of) crucial aspects of a study, including the hypotheses, expectations, or, most important, the assignment of participants to experimental groups.

The study conducted by researcher Alan Lang on the effects of alcohol represented one of the first approaches to using the double-blind form of study.A double-blind study is a type of study in which neither the participants nor the experimenters themselves know who has received the treatment.

Sample Undergraduate 2:2 Psychology Essay. See for yourself why we're the world's leading academic writing company. One of our expert writers has created this bespoke sample psychology essay that shows the incredible quality that's guaranteed with every piece of work ordered. Secure your academic success and place an order today or view our services.

The double-blind randomized controlled trial (RCT) is accepted by medicine as objective scientific methodology that, when ideally performed, produces knowledge untainted by bias. The validity of the RCT rests not just on theoretical arguments, but also on the discrepancy between the RCT and less rigorous evidence (the difference is sometimes considered an objective measure of bias).

The false security of the double-blind process is a trap which encourages the very bias it is supposed to prevent. The goal of a double-blind review is admirable—we all want impartial peer reviews. But in practice, double-blind reviews are not possible, not necessary, and potentially more biased than the single-blind procedure they replace.

The essay did not gain point 6 because the example does not mention the reduction of intrinsic motivation. Point 7 was awarded because the student indicates that the myelin sheath.

Example Research Projects. The example research projects below were written by students to help you with your own studies. If you are looking for help with your research project then we offer a comprehensive writing service provided by fully qualified academics in your field of study.