The following is a list of common first words adapted from The Rossetti Infant Toddler Language Scale (2006) and from the research findings of Professor Leslie Altman Rescorla, the director of the Child Study Institute at Bryn Mawr College. Rescorla's results indicate that there are 25 commonly used words that toddlers know, even those that are slow to learn language. This suggests that these words are worth targeting when working on language intervention for late talkers.

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