“…With "cumulative talk," speakers build uncritically on each other's statements by repeating, confirming, completing, or elaborating on what has gone before (Howe & Mercer, 2010 Although previous research has largely focused on older children (≥ 8 years) and adolescents, preschoolers also justify opinions, suggest alternatives, and reach compromises during free play with siblings or peers (Ehrlich, 2011;Howe & McWilliam, 2001). When preschoolers share stories with peers, they take on different roles than when interacting with adults: engaging actively with each other, requesting clarification, providing feedback, supporting each other's storylines, and seeking to improve narrative coherence (Blum-Kulka, Huck-Taglicht, & Avni, 2004;Nicolopoulou & Richner, 2004;Schick & Melzi, 2010). These exchanges resemble the kinds of interactions characterizing exploratory talk but are less readily facilitated in preschoolers' conversations with adults (Schick & Melzi, 2010).…”