“…The remaining 182 full-text references were evaluated for eligibility. From these, 170 full-text references were excluded for the stated inclusion and exclusion criteria, and a total of 12 studies were incorporated into the final meta-analysis (Avila-White et al, 1999; Crugnola, Maggiolini, Caprin, Martini, & Giudici, 2008; Karagianni et al, 2013; Krippner & Weinhold, 2001, 2002; Maggiolini, Cagnin, Crippa, Persico, & Rizzi, 2010; Mazandarani et al, 2013; Oberst, Charles, & Chamarro, 2005; Saline, 1999; Tartz, Baker, & Krippner, 2007; Tartz & Krippner, 2008, 2017). This yielded 14 data sets because two of the included studies, conducted by Oberst et al (2005) and Karagianni et al (2013), divided subjects into groups of children and teenagers.…”