“…In terms of autonomy support teacher training, differences were also found in 62.5% of the studies in which it was implemented (Aelterman et al, 2014;Chaztisarantis & Hagger, 2009;Cheon et al, 2012;Cheon et al, 2014;Cheon & Reeve, 2015;Moreno-Murcia & Sánchez-Latorre, 2016;Perlman, 2011Perlman, , 2015Yew & Wang, 2016). While in the studies by Aelterman et al (2014) and Cheon et al (2012) training lasted six and seven hours on the same day, respectively, in the other studies it was longer, to wit nine hours over three days (three hours per day) in Chaztisarantis and Hagger (2009), a 12-hour workshop in Moreno-Murcia and Sánchez-Latorre (2016), and several weeks in Perlman (2011Perlman ( , 2013 and Yew and Wang (2016).…”