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Related to Controlled Experiment: scientific method


1. Supervised, overseen, or closely monitored.
2. Effectively treated.


subjected to control.

controlled breeding
manipulation of mating and conception so as take advantage of seasonal demands for products, most favorable time for fertility or survival of offspring or for the purpose of controlling the size of the population. Includes managemental deferral of breeding, permanent surgical interference with male or female tracts and temporary hormonal suppression of reproductive activity.
controlled environment
buildings in which all food and drinking water are supplied and ambient temperature, humidity, air movement and light provision are controlled.
controlled experiment
one in which the experimental group which is to be subjected to a treatment or change in management is matched with a group which is very similar in every way except with respect to the variable that is to be manipulated.
controlled release glass bolus
see soluble glass.
controlled vocabulary
a database in which the names of diagnoses or medicines, etc. are limited to avoid a continual expansion of the titles, making comparisons between groups difficult.

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References in periodicals archive ?
Technicians at the Chernobyl Nuclear Power Station allowed the power in the fourth reactor to fall as part of a controlled experiment but the experiment went wrong with catastrophic consequences.
And while he's not running a controlled experiment, Price points out that student behavior on "dress down" days once a month differs noticeably.
Professor Armin Falk, research director at the Institute for the Study of Labour, conducted a controlled experiment of students to research people's reaction to supervision.
All of our findings were derived using one of the strongest designs in empirical research--the archival time-series analysis, a method that some claim is second in quality only to a true controlled experiment.
And scientists based in Germany launched an investigation after one man suffered an asthma attack and swelling of the tongue and throat after being given the food in a controlled experiment.
In a controlled experiment, the more vociferous the support for one team relative to the other, the more swayed were the decisions of officials in favour of that team.
But Bacon constantly urged that the collection of data should not be random but made according to planned and controlled experiments, a practice he named experientia literata.
is equipped with a lab for researchers to conduct controlled experiments that imitate regional and global activities.
The guiding principle for the calibration was to perform separate, controlled experiments for each parameter affecting the conversion from light to signal; these parameters are dark signal, linearity, exposure time, and spectral radiance responsivity.
The poor are not the subject of research in the classical sense of controlled experiments and objective observation, nor is the movement into these communities the same as a trip to the library, to the archives, or even a short visit to a distant and exotic land.

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