“…The types of interventions used within the studies varied. The majority of the studies ( n = 24) included applied behaviour analysis or behaviour therapeutic principles as the basis for the intervention (Lancioni et al, 1998 , 1999 , 2011 , 2007 , 1997 ; Lancioni, Singh, O’Reilly, Sigafoos, Didden, Oliva, et al, 2008 ; Lancioni, Singh, O’Reilly, Sigafoos, Didden, Smaldone, et al, 2008 ; Lancioni, O’Reilly, et al, 2013 , 2006 ; Lancioni, Singh, O’Reilly, Green, et al, 2014 ; Lancioni, Singh, et al, 2006 , 2013 ; Lancioni, Singh, O’Reilly, Sigafoos, et al, 2014 ; Lancioni, Smaldone, et al, 2006 ; Monlux et al, 2019 ; Perilli et al, 2019 ; Simacek et al, 2017 ; Stasolla, Damiani, et al, 2014 ; Stasolla & O’Caffò, 2013 ; Stasolla et al, 2013 , 2015 ; Stasolla, Perilli, Caffò, et al, 2017 ; Stasolla, Perilli, Damiani, et al, 2017 ; Stasolla, Perilli, et al, 2014 ), for example prompt fading, extinction and differential reinforcement. In addition, two studies used a practice‐based programme, which was originally developed for a specific centre or target group and subsequently adapted for the participants within the study (Gaskin et al, 2012 ; Kim et al, 2014 ).…”