In Brown's Stages of Syntactical and Morphological Development, Stage I corresponds to what age range?

• A. 15-30 months
• B. 9-12 months
• C. 30-36 months
• D. 3-5 years

Answer: (A)

Stage I is the early phase of syntactic and morphological development where children begin to move beyond single words and form simple two-word combinations, showing initial signs of grammar and word endings as they grow. This stage aligns with about 15 to 30 months of age, which is when children typically have a mean length of utterance around one to two morphemes. The other age ranges don’t match this early developmental window: nine to twelve months is generally still in the one-word stage, while thirty to thirty-six months and three to five years reflect later stages with more complex sentences and a broader use of grammatical morphemes.