“…Sample demographic characteristics are summarized in Table 1. Studies generally used correlational, cross-sectional designs (90% of included samples), with a small number of studies employing experimental/intervention (1% of samples; Unite, 2014; Verbruggen & Sels, 2008) or longitudinal/predictive designs with follow-up periods ranging from 3 months to 18 months (9% of samples; Dries, 2015; Fleisher, Khapova, & Jansen, 2014; Galais & Moser, 2009; Gubler et al, 2014a; Herrmann, 2013; Lo Presti, 2008; McArdle, Waters, Briscoe, & Hall, 2007; Ng & Feldman, 2015; Supeli & Creed, 2016; Vansteenkiste, Verbruggen, & Sels, 2016; Waters et al, 2014; Woo & Porter, 2017).…”