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Standard error (se)
| Glossary of Statistical Terms |
The standard error of a random variable is a measure of how far it is likely to be from its expected value; that is, its scatter in repeated experiments. the se of a random variable x is defined to be
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Experiment, английский
- What distinguishes an experiment from an observational study is that in an experiment, the experimenter decides who receives the treatment.
- Эксперимент
- A scientific test conducted under set conditions the scientists did some experiments to try the new drug on a small sample of people.
- N экспе- римент (см. тж. test) associative ~ псхлнгв. ассоциативный экспе- римент psycholinguistic ~ психолингвистический экс- перимент
- Эксперимент; опыт, опытное исследование
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Control group, английский
- The subjects in a controlled experiment who do not receive the treatment.
- A group of people who are not being treated but whose test data are used as a comparison in a study
- Контрольная группа
- Контрольная группа в исследовании случай-контроль группа лиц, у которых исследуемое состояние отсутствует или которая не подвергалась воздействию какого-либо фактора.
- Контрольная группа. в контролируемых клинических исследованиях (см. controlled study) группа субъектов, которые не получают лечения или получают стандартное лечение или плацебо.
- A set of controls that are conceptually or logically related. controls that are conceptually related are usually viewed together but do not necessarily affect each other. controls that are logically related affect each other.
Population standard deviation, английский
The standard deviation of the values of a variable for a population. this is a parameter, not a statistic. c.f. sample standard deviation.
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