“…The studies took place in six countries: seven in the USA (Albertson et al, 2015;Annesi, 2005;Bush, Rossy, Mintz, & Schopp, 2014;Pinto, Clark, Maruyama, & Feder, 2003;Rodgers et al, 2018;Toole & Craighead, 2016;Wolfe & Patterson, 2017), three in the UK (Alleva, Diedrichs, Halliwell, Martijn, et al, 2018;Alleva, Diedrichs, Halliwell, Peters, et al, 2018;Jankowski et al, 2017), two in Portugal (Duarte, Pinto-Gouveia, & Stubbs, 2017;Pinto-Gouveia et al, 2017), and one study in Australia (Mellor, Connaughton, McCabe, & Tatangelo, 2017), Iran (Ahmadi, Abbaspoor, Behroozy, & Malehi, 2017), and the Netherlands (Alleva, Martijn, et al, 2015). There was significant variation in sample size between the studies, ranging from 20 to 274 participants (M = 105.7).…”