Fig. 2

Depiction of the analysis methods used in this empirical study. *The estimation methods for ITS analysis are listed in order of preference, i.e. REML is used whenever it converges and the estimated autocorrelation is between -1 and 1, while PW followed by OLS are used in the case of non-convergence. ITS interrupted time series, REML restricted maximum likelihood, PW Prais-Winsten, OLS ordinary least squares, DL DerSimonian and Laird, WTÂ Wald-type, HKSJ Hartung-Knapp/Sidik-Jonkman