The Sunk Cost Degree

THE BELIEF

“Mental health struggles in PhD programs mean you're not cut out for academia.”

THE DATA

Evans et al.'s 2018 study of 2,279 PhD students found rates of depression and anxiety 2.6 times higher than comparable educated populations — meaning distress is not a signal of individual unsuitability but of structural conditions. The suffering is population-level and systematically produced, not a personal fitness test.

THE BELIEF

“If your advisor is difficult, that's just part of the PhD experience — everyone goes through it.”

THE DATA

Evans et al. found that advisor relationship quality is the single strongest predictor of PhD student wellbeing — stronger than funding, research topic, or program structure. Students with mentoring advisors show significantly lower rates of anxiety and depression than those with supervisory or neglectful advisors. The variation in advisor relationship quality is not noise around an average experience — it is the primary lever.

THE BELIEF

“Feeling like a fraud in your PhD program means you don't actually belong there.”

THE DATA

Clance and Imes' original research found impostor phenomenon disproportionately among high-achievers — people who objectively qualify. PhD environments structurally amplify impostor syndrome: students are surrounded by specialists, receive delayed and irregular feedback, and are evaluated on work that takes years to complete. The feeling of not belonging is a predictable cognitive response to a structurally ambiguous environment, not evidence of actual incompetence.