Hofmann                 A multilevel dataset from Hofmann, Griffin, and
                        Gavin (2000).
icc_beta                Intraclass correlation used to assess
                        variability of lower-order relationships across
                        higher-order processes/units.
iccbeta-package         iccbeta: Multilevel Model Intraclass
                        Correlation for Slope Heterogeneity
simICCdata              Simulated data example from Aguinis and
                        Culpepper (2015).
