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Definitions (140)
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accuracy
In science, engineering, industry and statistics, accuracy is the degree of conformity of a measured or calculated quantity to its actual, nominal, absolute, or some other reference, value. Precision characterizes the degree of mutual agreement or repeatability among a series of individual measurements, values, or results.
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anova - analysis of variance
In statistics, analysis of variance (ANOVA) is a collection of statistical models and their associated procedures which compare means by splitting the overall observed variance into different parts. The initial technique of the analysis of variance was pioneered by the statistician and geneticist Ronald Fisher in the 1920s and 1930s, and is sometim [..]
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applied research
The investigation of some phenomena to discover whether its properties are appropriate to a particular need or want. In contrast, basic research investigates phenomena without reference to particular human needs and wants.
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average
In mathematics, there are numerous methods for calculating the average or central tendency of a list of numbers. The most common method, and the one generally referred to simply as the average, is the arithmetic mean. Please see the table of mathematical symbols for explanations of the symbols used.
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basic research
Basic research is experimental and theoretical work undertaken to acquire new knowledge without looking for long-term benefits other than the advancement of knowledge.
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bias
The extent to which a measurement, sampling, or analytic method systematically underestimates or overestimates the true value of an attribute. FOR EXAMPLE, words, sentence structure, attitudes, and mannerisms may unfairly influence a respondent's answer to a question. Bias in questionnaire data can stem from a variety of other factors, includi [..]
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blinding
The practice of keeping the trial participants, care providers, data collectors, and sometimes those analyzing data unaware of which intervention is being administered to which participant. Blinding is intended to prevent bias on the part of study personnel. The most common application is double-blinding, in which participants, caregivers, and outc [..]
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calibration
The determination, by measurement or comparison with a standard, of the correct value of each reading on a measuring instrument. The standard may be maintained by a national or international organization.
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case series
A descriptive, observational study of the diagnosis, prognosis, treatment, and/or outcome of a subject group with the same (or similar aspects) of a condition.
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