In particular, she exhibits a lower vocabulary and language proficiency than that of her peers. ... The symbolic function substage is characterized by language development, particularly vocabulary, pragmatics and grammar, as a milestone of cognitive development. ... By the age of six, Kathleen should have a vocabulary of 2,500 words, up from 1,000 at three years of age. ... Therefore, Kathleen missed accumulating vocabulary and linguistic competencies from the daily activities that should have been guided by her mother (Chittleborough, Lawlor, and Lynch, 2011). Indeed, children at this age acc...

• Word Count: 1298
• Approx Pages: 5
• Has Bibliography
• Grade Level: Undergraduate