“…Studies have examined effects upon sibling wellbeing (Emerson & Giallo, 2014), stress (Nixon & Cummings, 1999), adjustment (Giallo & Gavidia-Payne, 2006), anxiety (Pollard, Barry, Freedman, & Kotchick, 2013), physical health (Hogan, Park, & Goldscheider, 2003), behavior (Platt, Roper, Mandleco, & Freeborn, 2014) and mental health (Giallo, Gavidia-Payne, Minett, & Kapoor, 2012; Goudie, Havercamp, Jamieson, & Sahr, 2013; Lovell & Wetherell, 2016). However, findings have often been conflicting (Marquis et al, 2019), with some studies reporting no deleterious effect upon siblings (Cuskelly & Gunn, 2006; Dempsey, Llorens, Brewton, Mulchandani, & Goin-Kochel, 2012; Tomeny, Barry, & Bader, 2012), some reporting a positive effect upon siblings (Connors & Stalker, 2003) and some reporting negative effects (Constantino et al, 2006; Hogan et al, 2003).…”