RESEARCH_FILE
The Science of the Imposter Phenomenon
The 'imposter phenomenon' was named in 1978 by two psychologists studying high-achieving women who, despite degrees, promotions and awards, remained convinced they had fooled everyone.
SEE THE PRACTICE
Turn a thought this research explains into one clear move.
THE THOUGHT
“They'll find out I'm a fraud”
YOUR RECORDED RESPONSE
“I keep the receipts. The record shows I delivered.”
ONE PRIVATE MOVE
For the next 8 minutes, make a private “proof list” on paper or in a notes app: three specific things you completed, clarified, corrected, or carried today. Keep it factual, not flattering.
Almost fifty years later, the research says three things clearly: imposter feelings are common in accomplished people of every gender, measured prevalence swings from 9% to 82% depending on which questionnaire you use, and success itself doesn't cure it — because the script discounts each new win as luck or charm. The newest work adds a twist: the feeling often tracks the environment, not just the person running it.
How the science changed
- 1978
Pauline Rose Clance and Suzanne Imes name the 'impostor phenomenon' — an internal experience of intellectual phoniness — after clinical work with over 150 high-achieving women who, despite objective accomplishments, believed they had fooled anyone who thought them bright. ↗
- 1981
Joan Harvey builds the first questionnaire for the construct, the 14-item Harvey Impostor Phenomenon Scale — the start of a measurement tradition that would later produce widely divergent prevalence numbers. ↗
- 1985
Clance publishes the 20-item Clance Impostor Phenomenon Scale (CIPS) — still the most used measure — and describes the 'impostor cycle': anxiety before a task, over-preparation or procrastination, brief relief after success, then the success is discounted and the doubt returns intact. ↗
- 2011
Sakulku and Alexander's review consolidates the research: the impostor cycle, perfectionistic standards, fear of evaluation and discounting of praise form a coherent pattern — and it is documented well beyond the original sample of high-achieving women. ↗
- 2020
Bravata and colleagues publish the first systematic review — 62 studies, 14,161 participants: prevalence estimates range from 9% to 82% depending on the instrument and cutoff, imposter feelings are common in men and women alike and often co-occur with depression and anxiety, and not a single published study had evaluated a treatment. ↗
- 2020
Feenstra, Begeny, Ryan and colleagues publish 'Contextualizing the Impostor Syndrome': the person-based approach misses how social context — competitive climates, biased environments, lack of representation — shapes who ends up feeling like a fraud. ↗
- 2021
Tulshyan and Burey's Harvard Business Review essay 'Stop Telling Women They Have Imposter Syndrome' becomes one of HBR's most-read articles: the label, they argue, pathologizes individuals — especially women of color — for doubt that biased workplaces themselves produce. ↗
What people believe vs. what the data shows
The belief“If you feel like an imposter, you probably are one — the feeling means you're underqualified.”
The dataThe phenomenon was defined in the opposite population: people with objectively strong records. Clance and Imes described it as an internal experience of phoniness in high achievers who persist in disbelieving their documented competence — the feeling is a misreading of the evidence, not a summary of it. ↗
The belief“Imposter syndrome only affects women.”
The dataThe 2020 systematic review found imposter feelings common among both men and women and across age groups; studies comparing genders are split, with many finding no difference at all. The 'women's problem' framing is a leftover from the original 1978 sample, not a finding of the literature. ↗
The belief“Imposter syndrome is an official psychiatric diagnosis.”
The dataIt is not listed in the DSM or ICD. Researchers describe it as a phenomenon or experience — a pattern of thoughts about one's own success — that often co-occurs with depression and anxiety but is not itself a mental disorder. Clance herself preferred 'phenomenon' over 'syndrome'. ↗
The belief“One more achievement — the promotion, the degree, the award — will finally make the feeling go away.”
The dataThe impostor cycle predicts the opposite: each success brings only brief relief before being reattributed to luck, effort or charm, so the belief 'I'm a fraud' survives every disconfirming win. Accomplishment feeds the cycle; it doesn't break it. ↗
The belief“Imposter feelings are a personal defect — the fix is to make the individual more confident.”
The dataRecent work argues the person-only frame is incomplete: competitive climates, biased treatment and lack of representation shape who feels like a fraud, and Tulshyan and Burey argue the label misdirects attention from fixing workplaces to 'fixing' the people — especially women of color — inside them. ↗
TEST_YOURSELF · How well do you know this science?
01 Who named the impostor phenomenon, and in what population was it first described?
Pauline Rose Clance and Suzanne Imes coined the term in their 1978 paper 'The Imposter Phenomenon in High Achieving Women', based on clinical work with over 150 women who dismissed clear evidence of their own ability. source ↗
02 The 2020 systematic review found imposter-syndrome prevalence estimates ranging from 9% to 82%. What best explains that enormous spread?
Bravata and colleagues attributed the 9–82% spread largely to methodology: which questionnaire a study used and where it set the cutoff for 'having' imposter syndrome. The construct has no single agreed threshold. source ↗
03 Is 'imposter syndrome' an official mental-health diagnosis?
Imposter syndrome has never appeared in the DSM or ICD. The 2020 review treats it as a phenomenon that often co-occurs with depression and anxiety; the original researchers deliberately called it a 'phenomenon', not a syndrome or disorder. source ↗
04 In Clance's 'impostor cycle', what happens right after a person succeeds at a feared task?
The cycle runs: anxiety before the task, over-preparation or procrastination, then success — followed by brief relief, reattribution of the success to effort or luck, and intact self-doubt when the next task arrives. That is why achievement alone never closes the loop. source ↗
05 What was the core argument of Tulshyan and Burey's 2021 'Stop Telling Women They Have Imposter Syndrome'?
Tulshyan and Burey argued the concept, developed in 1978 without accounting for systemic racism and other biases, puts the onus on individuals — especially women of color — to fix a feeling that exclusionary workplaces themselves generate. The remedy they propose is changing the environments, not diagnosing the people. source ↗