restricted
maximum
likelihood
estimation
durationas
dependent
variable
subject identity as the randomeffect. We conducted all statistical tests using Stata 13 (StataCorp,2013) or JMP 10 (SAS Institute, 2012). Tests were two-tailed, withalpha = 0.05. Again, data from the two data sets were analyzed sep-arately so as to determine whether both converged on the samepatterns.