I agree that just looking at only the Word Gap and Socioeconomic Status probably doesn't tell the whole picture. If those were the only two levers that mattered

I agree that just looking at only the Word Gap and Socioeconomic Status probably doesn't tell the whole picture. If those were the only two levers that mattered, it would be easy to assume that giving people money would close the gap, but it is likely a combination of many factors - some of which likely stem from socioeconomic status - and others which stem from other reasons. Some of the other data points that would be interesting to know would be: 1) whether or not the child has a parent or full-time caretaker in the home 2) does the child attend preschool 3) how much television/videos does the child watch 4) how regularly the child is read to