Bad News: This One Chart Shows That Marine Officers Are Getting Dumber

New Marine officers graduate at the Naval Academy

A new study from the Brookings Institution reviews scores from the General Classification Test (GCT) taken by new Marine officers in Quantico at the outset of their training. The GCT is effectively an IQ test, and is administered in a consistent manner year after year, which makes historical comparisons of the scores interesting. And not, it turns out, in a good way. Here’s what the authors of the study discovered—in one chart, as we say these days: