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nuisance parameters  

Definition

  • A nuisance parameter is a type of parameter that is of no or only secondary interest in parametric estimation. For example, in a certain statistical model that involves a normally distributed random variable, the researcher's interest often focuses on the estimation of the expectation of the variable µ, whereas the variance of the random variable σ 2 is of no interest and is then considered a nuisance parameter. [Source: The SAGE Encyclopedia of Social Science Research Methods; Nuisance Parameters]

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https://concepts.sagepub.com/social-science/concept/nuisance_parameters

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