“…A total of eight studies (two dissertations) investigated the impacts of various training programs upon stigmatising attitudes of correctional staff (Brown et al, 2018; Canada et al, 2021; Comartin et al, 2020; Dy, 2014; Melnikov et al, 2017; Poland, 2010; Ramsden et al, 2014; Tomar et al, 2017). One study was assessed as being of high overall quality (Melnikov et al, 2017), four studies as medium overall quality (Canada et al, 2021; Comartin et al, 2020;Dy, 2014; Tomar et al, 2017) and three as low quality (Brown et al, 2018; Poland, 2010; Ramsden et al, 2014).…”