Measurement protocols, random-variable-valued measurements, and response process error: Estimation and inference when sample data are not deterministic

Edward Kroc

PLOS ONE, 2020, vol. 15, issue 10, 1-25

Abstract: Random-variable-valued measurements (RVVMs) are proposed as a new framework for treating measurement processes that generate non-deterministic sample data. They operate by assigning a probability measure to each observed sample instantiation of a global measurement process for some particular random quantity of interest, thus allowing for the explicit quantification of response process error. Common methodologies to date treat only measurement processes that generate fixed values for each sample unit, thus generating full (though possibly inaccurate) information on the random quantity of interest. However, many applied research situations in the non-experimental sciences naturally contain response process error, e.g. when psychologists assess patient agreement with various diagnostic survey items or when conservation biologists perform formal assessments to classify species-at-risk. Ignoring the sample-unit-level uncertainty of response process error in such measurement processes can greatly compromise the quality of resulting inferences. In this paper, a general theory of RVVMs is proposed to handle response process error, and several applications are considered.

Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0239821

DOI: 10.1371/journal.pone.0239821

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