“…These indices have been used widely in previous research to characterize the narrative abilities of young children (e.g., Eisenberg et al, 2008;Justice et al, 2006;Kay-Raining Bird, Cleave, White, Pike, & Helmkay, 2008;Scott & Windsor, 2000). Grammatical complexity refers to how children construct sentences in both simple and complex ways to express ideas within stories.…”