Physicist Steve Hsu stated of the test:
I suspect that this test emphasized verbal, as opposed to mathematical, ability. Feynman received the highest score in the United States by a large margin on the notoriously difficult Putnam mathematics competition exam ... He also had the highest scores on record on the math/physics graduate admission exams at Princeton ... Feynman's cognitive abilities might have been a bit lopsided ... I recall looking at excerpts from a notebook Feynman kept while an undergraduate ... [it] contained a number of misspellings and grammatical errors. I doubt Feynman cared very much about such things.[21]
