“…In three such reviews, pooled effect sizes suggested target behaviours were, on average, more frequent in generalisation contexts after intervention relative to pre‐intervention and, on average, were as frequent in generalisation contexts as in the intervention contexts post‐intervention. However, there was large variation across and within individual studies and sample sizes were small [Hong, Kawaminami, et al, ; Hong, Neely, et al, ; Neely et al, ]. This variation within and across studies has been highlighted by several other reviews [Jung & Sainato, ; Kabashi & Kaczmarek, ; Neely, Garcia, Bankston, & Green, ; Shukla‐Mehta, Miller, & Callahan, ; van der Meer & Rispoli, ; Whalon, Conroy, Martinez, & Werch, ].…”