In the regression analysis of clustered data it is important to allow for the possibility of distinct between- and within-cluster exposure effects on the outcome measure, represented, respectively, by ...

Frailty models have emerged as a pivotal tool in survival analysis, offering a robust framework to account for unobserved heterogeneity and dependence between paired failure times. In bivariate ...

In this note it is shown that P(η - ξ > 0) can easily be calculated using tables of the bivariate normal distribution, where ξ, η are independent, ξ has a normal distribution, and η has a truncated ...