control experiment


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experiment

 [ek-sper´ĭ-ment]
a procedure done in order to discover or demonstrate some fact or general truth. adj., adj experimen´�tal.
control experiment one made under standard conditions, to test the correctness of other observations.

con·trol ex·per·i·ment

an experiment used to check another, to verify the result, or to demonstrate what would have occurred had the factor under study been omitted or held constant.
See also: control, control animal.

con·trol ex·per·i·ment

(kŏn-trōl' eks-per'i-mĕnt)
An experiment used to check another, to verify the result, or to demonstrate what would have occurred had the factor under study been omitted.
See also: control

experiment

a study involving a comparison group in which the investigator intentionally alters one or more risk factors in order to discover or demonstrate some fact or general truth.

control experiment
one made under standard conditions, to test the correctness of other observations.
controlled experiment
one in which an exact replica of the animals experimented on are kept without any treatment in order to show what changes occurred in normal animals, reinforcing the view that the observed changes in the experimental animals were in fact the result of the treatment administered.
factorial experiment
one set up in such a way that all levels of each intervention or treatment occur with each level of response.
field experiment
one carried out in normal circumstances and environment, e.g. on the farm or in the cattery rather than in an experimental institution where many of the factors affecting the occurrence or severity of a disease may not operate.
laboratory experiment
carried out in a laboratory where conditions can be almost completely controlled.
latin square experiment
a method of laying out a field experiment in such a way as to avoid bias by physical location.
prospective experiment
those carried out to see what happens if certain influences are applied to an animal or a group of animals. Retrospective experiments are those which set out to explain events that have already been observed.
References in periodicals archive ?
The tensile strength and elongation of samples declined with increased castor oil but however compared favourably with the control experiment.
Meanwhile, the compost manures of the plastic bins and those of the control experiments continued to maintain low pH throughout the composting period.
In contrast, the control experiments did not show such dynamics.
Currently, film processors measure orientation in post processing quality control experiments that are carried out with a considerable time delay after processing.
In control experiments, we detected [is greater than] 150 putative polypeptide products using various autoradiographic exposures.
Several control experiments were conducted with those variables in mind, only to find that the plant's metallurgical and foundry practices were well under control.
Nevertheless, Cecil says his control experiments convince him that what he saw was real, and he takes heart from some still-unpublished findings by George P.
Even though the movie portrays goats as susceptible to mind control experiments, in real life it would be quite the opposite.
Phosphate rock combined with zeolite resulted in gross yields 4 times higher than control experiments.
The plant structure is outlined together with its mathematical model and a proposals of various hybrid control experiments that can be performed with this plant are given.
Control experiments were performed by adding either no supernatant (100 [micro]L of sodium citrate buffer instead) or supernatant mixed with protease inhibitor cocktail (Sigma Chemical Co.
This will allow researchers to use the F-16XL for advanced control experiments at very low cost and to reduce the time it takes to carry out a flight experiment.