“…Even though a great part of developmental research has focused on parent-child relationships, an emerging literature shows that sibling relationships are also important (Gamble, Yu, & Kuehn, 2011;Waite, Shanahan, Calkins, Keane, & O'Brien, 2011). Research in recent decades, for example, has shown that siblings often spend more time with each other than with parents (Waters, 1987). Moreover, it is uncommon for siblings to discontinue their relationship with each other, even if the relational experience has been mostly negative (Cicirelli, 1985;Ross & Milgram, 1982).…”