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Early exposure to storybooks in the home: Validation of title/author checklist measures in a sample of children at elevated risk of reading difficulty.

Title/author checklists are a reliable and valid method of measuring young children's exposure to storybooks. Early storybook exposure is robustly associated with concurrent oral language; a correlation between storybook exposure and concurrent pre-literacy skills was observed for typically developing children, but not for children at elevated risk of reading difficulty.