| 词汇 | example_english_randomized-experiment |
| 释义 | randomized experimentcollocation in Englishmeanings of randomizedand experimentThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with experiment. randomized adjective uk /ˈræn.də.maɪzd/ us /ˈræn.də.maɪzd/ relating to experimental research where subjects are selected for particular treatments ... See more at randomized 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 at experiment Examples of randomized experimentThese 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. Thus, natural experiments are observational studies and are not controlled in the traditional sense of a randomizedexperiment. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The commonly used normal linear models for a completely randomizedexperiment are:! From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A randomizedexperiment works by assigning people randomly to treatments (in this case, public or private college). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For a randomizedexperiment, the assumption of treatment additivity implies that the variance is constant for all treatments. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Setting aside any ethical considerations, a randomizedexperiment would be impractical because of the rarity of the effect. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. However, a good observational study may be better than a bad randomizedexperiment. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For a randomizedexperiment, the assumption of unit-treatment additivity "implies" that the variance is constant for all treatments. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. One approach to making this problem somewhat more tractable is to embed randomized experiments in the tutor. The statistical analysis of a randomizedexperiment may be based on the randomization scheme stated in the experimental protocol and does not need a subjective model. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For example, agricultural research frequently uses randomized experiments (e.g., to test the comparative effectiveness of different fertilizers). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Designed randomized experiments may provide more reliable conclusions than do observational studies. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Confounding is commonly eliminated through scientific control and/or, in randomized experiments, through random assignment. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. 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. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Observational studies are limited because they lack the statistical properties of randomized experiments. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In these situations, observational studies have value because they often suggest hypotheses that can be tested with randomized experiments or by collecting fresh data. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Exploratory qualitative research is also useful for suggesting new hypotheses, which can eventually be tested by randomized experiments. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Neyman proposed and studied randomized experiments in 1923. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. 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. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Fisher's experimental research and his writings popularized randomized experiments. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. 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. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. 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. Want to learn more? Go to the definition of randomized Go to the definition of experiment See other collocations with experiment |
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