randomized experiment

collocation in English

meaningsofrandomizedandexperiment

These words are often used together. Click on the links below to explore the meanings. Or,see other collocations withexperiment.
randomized
adjective
uk
/ˈræn.də.maɪzd/us
/ˈræn.də.maɪzd/
relating to experimental research where subjects are selected for particular treatments ...
See more atrandomized
experiment
noun[C or U]
uk
/ɪkˈsper.ɪ.mənt/us
/ɪkˈsper.ə.mənt/
a test done in order to learn something or to discover if something works or ...
See more atexperiment

(Definition ofrandomizedandexperimentfrom theCambridge English Dictionary© Cambridge University Press)

Examplesofrandomized experiment

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Thus, natural experiments are observational studies and are not controlled in the traditional sense of arandomizedexperiment.
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The commonly used normal linear models for a completelyrandomizedexperimentare:!
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Arandomizedexperimentworks by assigning people randomly to treatments (in this case, public or private college).
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For arandomizedexperiment, the assumption of treatment additivity implies that the variance is constant for all treatments.
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Setting aside any ethical considerations, arandomizedexperimentwould be impractical because of the rarity of the effect.
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However, a good observational study may be better than a badrandomizedexperiment.
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For arandomizedexperiment, the assumption of unit-treatment additivity "implies" that the variance is constant for all treatments.
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One approach to making this problem somewhat more tractable is to embed randomized experiments in the tutor.
From theCambridge English Corpus
The statistical analysis of arandomizedexperimentmay be based on the randomization scheme stated in the experimental protocol and does not need a subjective model.
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For example, agricultural research frequently uses randomized experiments (e.g., to test the comparative effectiveness of different fertilizers).
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Designed randomized experiments may provide more reliable conclusions than do observational studies.
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Confounding is commonly eliminated through scientific control and/or, in randomized experiments, through random assignment.
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Similarly, results from randomized experiments are recommended by leading statistical authorities as allowing inferences with greater reliability than do observational studies of the same phenomena.
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Observational studies are limited because they lack the statistical properties of randomized experiments.
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In these situations, observational studies have value because they often suggest hypotheses that can be tested with randomized experiments or by collecting fresh data.
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Exploratory qualitative research is also useful for suggesting new hypotheses, which can eventually be tested by randomized experiments.
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Neyman proposed and studied randomized experiments in 1923.
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Peirce's experiment inspired other researchers in psychology and education, which developed a research tradition of randomized experiments in laboratories and specialized textbooks in the eighteen-hundreds.
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Fisher's experimental research and his writings popularized randomized experiments.
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It is also generally unethical (and often illegal) to conduct randomized experiments on the effects of substandard or harmful treatments, such as the effects of ingesting arsenic on human health.
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These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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See other collocations withexperiment