![]() ![]() The researchers filmed the child’s eye movements, tracking which picture the child looked at (vocabulary) and how long this took in milliseconds (processing time). (The caregiver wore sunglasses so the child could not be influenced by the caregiver’s responses to the questions or images.) A recorded voice identified one of the objects by name and used it in a sentence (Look at the doggy). Each toddler sat in her caregiver’s lap as images of two familiar objects were shown on a screen. The study, conducted by researchers at Stanford University, tested the language processing of 18- and 24-month-old toddlers using pictures, instructions, and eye response. By 2 years, the disparity in vocabulary development has grown significantly (Fernald, Marchman, & Weisleder 2013). By 18 months, children in different socio-economic groups display dramatic differences in their vocabularies. ![]() A recent study shows that the vocabulary gap is evident in toddlers. ![]() Children’s vocabulary skills are linked to their economic backgrounds. By 3 years of age, there is a 30 million word gap between children from the wealthiest and poorest families. ![]()
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