experimental method


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Related to experimental method: correlational method

experimental method

the scientific method used to test an EXPERIMENTAL HYPOTHESIS by comparing an EXPERIMENTAL GROUP which has been subjected to an INDEPENDENT VARIABLE, with a CONTROL GROUP which has not. This is the method of choice in PSYCHOLOGY, but sociology has developed diverse methodologies to cope with less controllable data. See RESEARCH METHODS, QUANTITATIVE RESEARCH TECHNIQUES, COMPARATIVE METHOD, CAUSAL MODELLING.
References in periodicals archive ?
Based on data obtained using the theoretical method and the experimental method used to capture the planetary gear sounds, results will be compared with the solutions obtained by using the virtual simulation of the product.
It challenges the contributions to knowledge of a discipline based on the experimental method, the highest of the high.
Roger Bacon, who is credited with the introduction of experimental method, acquired his scientific training in the Muslim universities of Spain.
Writing in The Nation two years ago, Barbara Ehrenreich and Janet McIntosh recounted an incident at an interdisciplinary conference on the emotions in which University of Michigan psychologist Phoebe Ellsworth ventured some favorable comments about the experimental method. Several audience members promptly rose to criticize her for collaborating with a methodology so identified with white Victorian males.
More importantly, the experimental method, as a coincidence experiment, only counts events in which a proton is detected within a finite time window following the detection of an electron.
There are certainly some lucid moments in Altegoer's core thesis that the bonds forged in the sixteenth century between "philosophy and rhetoric contributed to the development of an experimental method constituted by practical, technical ways of knowing" (52).
Barreto has developed an experimental method of removing the gasoline additive methyl-tert-butyl ether (MTBE, used as an octane enhancer) from water by bubbling oxygen into the contaminated water and adding Ti[O.sub.2], a process that converts both MTBE and another additive, tert-butyl alcohol, to [CO.sub.2] with a 90% efficiency rate in as little as four hours.
An alternative "backward elimination" experimental method is explained.
NIST researchers have developed an experimental method for determining the broadband permittivity of thin-film samples at frequencies up to 40 GHz using coplanar waveguide (CPW) measurements and finite element simulations.
For example, the researchers stated in their paper that they assigned volunteers to THA or placebo groups in a random and double-blind manner -- a standard experimental method that helps eliminate bias by keeping volunteers and researchers unaware of which participants receive treatment or placebo.
The experimental method described here has sufficient precision to yield a combined relative standard uncertainty of 4%.
Now, in separate reports in the May OBSTETRICS AND GYNECOLOGY, the Mount Sinai team and a California physician describe using variations of the same experimental method to terminate one or more healthy fetuses in the first trimester of risky multifetal pregnancies.

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