At what age do children typically develop a mean length of utterance (MLU) of approximately 1.75?

Children typically develop a mean length of utterance (MLU) of approximately 1.75 around the age of 24 months. At this stage of language development, children are beginning to combine words into simple phrases and sentences, showcasing their expanding vocabulary and understanding of syntax.

By 24 months, most children can create two-word combinations, which contributes to the increase in MLU. These combinations often reflect the immediate context of their environment, showing their ability to communicate more complex ideas or needs. The growth in MLU from one-word utterances to two-word phrases is a key milestone in language development, indicating that children are starting to grasp the fundamentals of grammar, even if they might still demonstrate some inconsistencies in usage.

In contrast, the other ages listed (12 months, 18 months, and 36 months) reflect different stages of language development where children have not yet reached or have surpassed that specific MLU mark of 1.75. At 12 months, children typically produce single words, and at 18 months, they might begin using some two-word phrases, but their MLU remains below 1.75. By 36 months, the MLU would typically be higher than 1.75, as children would