Everybody cites this one 1980 study for the relationship between WORDSUM and fullscale IQ/g. However, it's pretty damn suspicious everybody cites a 38 year old study. I looked thru all citing studies, found nothing newer. https://scholar.google.com/scholar?start=0&hl=en&as_sdt=0,5&sciodt=0,5&cites=9747768905160909013&scipsc= … http://blogs.discovermagazine.com/gnxp/2010/05/wordsum-iq/ …pic.twitter.com/uRjDtZqiSI