Epistemic uncertainty and stochastic time reliability correlations

A time reliability correlation is a stochastic model used in quantifying human response to offnormal events in a risk analysis. This article examines this type of model in light of the recent concern with separating models of randomness and uncertainty. It is shown that the separation may only be conceptual or numerical but not mathematical. On the way a direct proof of an old intuition is offered and two errors in previous documentation of TRCs are corrected.