“…Blicharski (2002), using pragmatic dimensions of early language, identified four subgroups of 30-monthold children with relatively homogeneous language styles: three referential and one truly expressive. She suggests that neither simple dichotomous distinctions, such as the expressive-referential styles, nor simple process explanations, such as mother-driven models of early discourse, are adequate in attempts to account for diversity in young children's observed speech.…”