TY - JOUR AU - Janssen, Paul AB - Variance components are useful parameters to quantify the different sources of randomness in hierarchical models. Interpreting the variance components in generalized mixed and frailty models is not straightforward because the variance is not directly related to quantities with a biologicalmeaning. We therefore investigate how the estimated values of the variance components affect the variability of specific quantities of interest such as the prevalence or the median time to event. We discuss two examples from veterinary science with clustering between animals and show for theseexamples how variance components can be interpreted in the case of a binary and time-to-event response variable. TI - Understanding Heterogeneity in Generalized Mixed and Frailty Models JF - The American Statistician DO - 10.1198/000313005X43236 DA - 2005-05-01 UR - https://www.deepdyve.com/lp/taylor-francis/understanding-heterogeneity-in-generalized-mixed-and-frailty-models-YbidPQncJl SP - 143 EP - 146 VL - 59 IS - 2 DP - DeepDyve ER -