Beta Regression for Interval-Censored Scale-Derived Outcomes

介紹

The betaregscale package is a library of R functions for fitting beta regression models to interval-censored transformed scale data, allowing for fixed or variable dispersion.

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Patient-reported outcome measures (PROMs) on bounded rating scales, such as the Numerical Rating Scale (NRS-11, NRS-21, NRS-101), Visual Analogue Scale (VAS), or Likert-type instruments, are ubiquitous in clinical research. Standard analyses treat these bounded, discrete scores as exact continuous values via ordinary least squares (OLS), silently violating two core assumptions: natural scale boundaries are ignored, and the inherent heteroscedasticity of bounded responses is misrepresented.