Fig. 2

Counterfactual acceptance rates (CAR) across the SLRs evaluated. Note: For Blom et al. [47], Copper et al. [50], Afshari et al. [60], Jiang et al. [62], Etxeandia-Ikobaltzeta et al. [72] and Eiring et al. [69], the actual acceptance rates reported by authors are presented. n = xx represents the total number of articles considered eligible and evaluated for quality after screening. SLRs = Systematic Literature Reviews