TfL's guidelines for the test do indeed include a requirement to «write a short letter or story (about 100 - 150 words) on a given topic» — so it's a pretty short «essay writing test,» as Uber couches it — along with other components such as reading statements and saying whether they are true or false, and filling in word gaps in sentences. (beta.techcrunch.com)
In early childhood policy (and in the wider media), much attention has been paid to the so - called word gap — findings that show that low - income children hear 30 million fewer words, on average, and have less than half the vocabulary of upper - income peers by age three. (gse.harvard.edu)
A) By 3 years old, there is a 30 million - word gap between children from the wealthiest and poorest families. (washingtonpost.com)