Double Blind Randomized Controlled Trial

Topics: Science, Experiment, Scientific method Pages: 2 (627 words) Published: March 20, 2013
Double Blind Randomized Controlled Trial
The controlled and randomized double blind trials refer to a situation in which a medicine investigator is not familiar with the nature of a drug. The term may also mean that a scientist does not realize that a drug is being tested maybe for certain diseases. Such medicines may be under surveillance, and they are only administered in a small prescribed amount in case of any side-effects. For a typical scientific research, the desires, expectations and beliefs can subconsciously influence, often, how people perceive things. In clinical research and preliminary psychology, these values are broadly recognized, thus explaining the rationale on why studies from subjects are regularly carried out under both blind and double blind situations. There is irresistible empirical support, which reveals that the expectation and attitude of experimenters can actually have a great impact on the result of experiments (Schulz & Grimes, 2002). In a situation involving single-blind experiments, an examiner is not able to distinguish between different samples of treatment. However, when human beings are concerned, such as in experimental psychology and medicine, double-blind events can be used to watch against the anticipation of both investigators and their subjects. For instance, in a double-blind clinical trial, tablets of drugs may be administered to patients. Neither patients nor researchers are conscious of such experiments, and the principal placebo effects typically take place during trials. At this stage, both physicians and patients consider a powerful new treatment is being tested. The static tablets are liable to work like the cure being considered, and can even provoke its distinctive consequences. Similarly, experimenter expectation effects are recognized in experimental psychology, and also turn up in researches on animal activities (Schulz & Grimes, 2002). In a captivating historical description, Schulz and Grimes...
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