No survey asks PhD holders a clean “do you regret your doctorate” question, so both sides here rest on adjacent proxies. On the action side, Nature’s 2019 survey of more than 6,300 PhD students worldwide found that 75% were satisfied with their decision to pursue a PhD (and 71% with the experience overall) — leaving roughly a quarter who were not satisfied with the decision. PayScale’s separate survey of 248,000 US degree-holders adds broad context on degree regret: about two-thirds reported some college regret, with 27% naming student loans as their biggest misgiving. That survey’s public reporting does not break results out by degree level, so it says nothing PhD-specific. The 25% figure is the complement of the satisfaction rate, not a direct regret count, and it draws on current students rather than graduates years later.
On the inaction side, the Federal Reserve’s 2022 SHED survey found that 32% of US adults with at least a bachelor’s degree would have completed more education if they could decide again, while only 9% would have done less or skipped college entirely. That “more education” signal is broad graduate-education aspiration, not a PhD-specific wish: no survey isolates how many bachelor’s-only workers specifically regret not earning a doctorate. Gallup’s large education-decisions poll measured only field of study (36% would change it), institution (28%), and degree type (12% would obtain a different one), and explicitly did not ask about the amount or level of education.
Read together, the two proxies are close, with a slight edge toward wishing one had pursued more education (a -0.07 action-minus-inaction gap) — broadly consistent with Gilovich’s finding that inaction regret tends to dominate over the long run. The contrast should be treated as roughly comparable rather than precise, since the two figures come from different surveys measuring different constructs. Regret also varies sharply by field: STEM PhDs who move to industry frequently report high satisfaction and compensation, while humanities PhDs who could not secure tenure-track positions report considerably more. The doctoral choice remains consequential and hard to reverse — five to seven years of foregone income and career development cannot be recovered if the intended academic path does not materialise.