The foundational paradox: why high performers are most affected

Clance and Imes’s (1978) original research documented the central paradox from the outset: impostor phenomenon occurs most intensely in people who are performing well. The people least likely to be impostors — the people who are demonstrably succeeding — are the people most likely to believe they are.

The mechanism is the attribution asymmetry. High performers with impostor syndrome attribute their successes to external factors: luck, timing, others’ misjudgment, the specific circumstances that happened to align. They attribute their failures — and their fears about future performance — to stable internal factors: inadequate capability, insufficient intelligence, the fraud that has not yet been discovered. This attribution pattern means that every success provides evidence not for competence but for successful deception. The successful presentation to investors was impressive enough to deceive sophisticated people about capability that is not really there. The product launch that worked did so because of market conditions rather than because the entrepreneur built something genuinely good.

The attribution asymmetry is self-sustaining. Success should update the self-belief that the performance is warranted — but the impostor syndrome mechanism intercepts that update and routes the success evidence through the external attribution channel instead. The self-belief remains static or deteriorates as expectations rise; the evidence that should revise it is redirected to confirm the deception narrative instead.

The Neureiter-Traut-Mattausch mechanism: why success raises the standard rather than meeting it

Neureiter and Traut-Mattausch’s (2016) research documented the specific mechanism through which success escalates impostor syndrome severity. Each successive achievement raises the expectation standard that subsequent performance must meet — not in the observer’s mind alone but in the impostor’s fear architecture. The fear at early stages is “I will be discovered as unable to do what I am currently doing.” Each success transforms that fear: “I will be discovered as unable to do what someone at my now-elevated level is expected to do.”

The success-competence gap that the impostor fears is not a fixed magnitude that remains stable as performance improves. It expands with each success because success changes the expected standard while leaving the underlying self-belief unchanged. The entrepreneur who has closed a Series A round now faces the expectation of Series B performance. The founder whose first product succeeded now faces the expectation that their next product will succeed. The author who has written eleven books faces the expectation of an eleventh book that meets or exceeds the previous ten.

Maya Angelou’s documented account of the mechanism is the most precise available statement of it: “I have written eleven books, but each time I think, uh oh, they’re going to find out now.” Eleven books did not resolve the impostor fear. Each book raised the standard; the eleventh book must meet the expectation created by ten predecessors. The impostor syndrome does not diminish with accumulated evidence; the success raises the standard faster than the self-belief can follow.

The visibility mechanism: more success means more observers

The Leary sociometer research established that the social evaluation threat — the fear of negative evaluation by others — is a primary driver of the shame and inadequacy responses that impostor syndrome produces. The specific feature of success that escalates this threat is visibility: success increases the number of people who are aware of the entrepreneur’s performance.

The investors who now have a stake in the outcome. The press who covered the funding announcement. The team members who look to the founder as evidence that the mission is credible. The competitors who now know who they are competing against. Each additional observer represents an additional potential discoverer of the inadequacy the impostor fears — which is why high performers with impostor syndrome often resist the very visibility that success produces.

The avoidance behaviours that the visibility mechanism generates are diagnostically useful precisely because they are counterintuitive for successful people: turning down press coverage that would benefit the business, declining speaking opportunities that would build credibility, avoiding social media presence that would generate commercial advantage. The avoidance is not strategic; it is the protection response of a person for whom more observers means more exposure. Only high performers have sufficient visibility for this mechanism to operate at clinical intensity, which is why the syndrome disproportionately affects them.

The entity theory foundation

Dweck’s (2006) entity theory research provides the foundational belief system that makes impostor syndrome possible in the specific form it takes. Only someone who believes that ability is fixed — that intelligence and capability are stable characteristics that a person either has or does not have — can fear that their fixed ability is inadequate. The entity model makes the impostor fear logical: if ability is fixed, and if the person believes their fixed ability is insufficient for their current level of performance, then they are performing above their actual capability, which makes them an impostor.

The growth mindset alternative does not eliminate the impostor syndrome through direct challenge — simply telling a person with impostor syndrome that their ability is not fixed rarely shifts the experience — but it reframes every performance as evidence of current development rather than as evidence of fixed capability, which interrupts the attribution asymmetry that sustains the syndrome.

Books worth reading on this

The Secret Thoughts of Successful Women by Valerie Young is the most research-grounded available popular account of impostor syndrome across high-achieving populations — covering the five specific competence types that Young’s research identified as generating distinct impostor presentations, the specific behaviours each type produces, and the research-based approaches that address each. Young draws directly on the Clance and Imes research programme and extends it through her own extensive work with high-achieving populations. For the entrepreneur who wants the most practically structured available account of how impostor syndrome specifically operates in their context and what the research supports as genuinely effective responses, Young provides the most comprehensive and directly applicable available source.

If the dynamics described here are significantly affecting your wellbeing, speaking with a psychologist is the right next step. UK: Samaritans (116 123, free, 24/7). Mind (0300 123 3393). BACP: bacp.co.uk/search/Therapists. Crisis Text Line — text HOME to 741741 (US, UK, Canada, Ireland). International: internationaltherapistdirectory.com.

This article is for educational and informational purposes only. Sources: Clance, P.R. & Imes, S.A. (1978), The Impostor Phenomenon in High Achieving Women, Psychotherapy: Theory, Research and Practice, 15(3), 241–247. Neureiter, M. & Traut-Mattausch, E. (2016), An Inner Barrier to Career Development, Frontiers in Psychology, 7, 1813. Leary, M.R. et al. (1995), Self-Esteem as an Interpersonal Monitor, Journal of Personality and Social Psychology, 68(3), 518–530. Dweck, C.S. (2006), Mindset, Random House. Young, V. (2011), The Secret Thoughts of Successful Women, Crown Business. Cuddy, A. (2015), Presence, Little, Brown.