“…Moreover, eight intervention studies involved special groups of participants (SG). These were, for example, children with emotional and/or behavioral disorders (Kellner et al., 2008; McKenney & Dattilo, 2001), disabilities (Davis, Langone, & Malone, 1996; Kroeger et al, 2007), and cognitive impairments (Hoff & Ronk, 2006) and aggressive (Leff, Waasdorp, & Paskewich, 2016) or shy children (Li et al., 2016). In one study, the participants were children of parents with depression (Solantaus et al., 2010).…”