Impostor Syndrome
Also known as: Imposter syndrome
Impostor syndrome is the internal experience of believing you are less capable than others perceive you to be, and fearing you will eventually be found out — even when your record clearly shows you are qualified. People affected discount their achievements, attributing them to luck, charm, or error rather than genuine ability. It is especially common among high performers, and it tends to intensify at moments of stretch: a promotion, a new senior role, or entry into a more competitive environment.
First described by psychologists Pauline Clance and Suzanne Imes, impostor syndrome is not a clinical disorder but a well-documented pattern of thought. It disproportionately affects people who are underrepresented in their setting — the only woman on a leadership team, the first in a family to reach a senior role — because the absence of peers who look like them can amplify the sense of not belonging. Its practical costs include reluctance to apply for roles, hesitancy in negotiating pay, and self-selection out of opportunities the person is well qualified for.
For talent leaders, impostor syndrome has two sides. First, it shapes candidate behaviour: strong potential hires may undersell themselves, decline to apply, or negotiate poorly, so inclusive job descriptions and a supportive interview process help capable people put themselves forward — the inverse of the overconfidence seen in the Dunning-Kruger Effect. Second, it shapes retention: newly promoted leaders and senior hires may quietly struggle with self-doubt in their first months, and structured onboarding, mentoring, and honest feedback that affirms real competence help them settle. Recognising that quiet capability is not the same as low capability is central to fair assessment.
Frequently asked questions
What is impostor syndrome?
Impostor syndrome is the persistent feeling of being a fraud despite real evidence of competence. People experiencing it attribute their success to luck rather than ability and fear being exposed as not good enough.
Who is most affected by impostor syndrome?
Impostor syndrome is especially common among high achievers and among people who are underrepresented in their environment, such as the only woman or the first-generation professional on a leadership team. The lack of similar peers can amplify a sense of not belonging.
How does impostor syndrome affect hiring and careers?
It can cause qualified people to avoid applying for roles, undersell themselves in interviews, and negotiate poorly on pay. Inclusive job descriptions and a supportive interview process help capable candidates put themselves forward.
How is impostor syndrome different from the Dunning-Kruger Effect?
Impostor syndrome is when competent people underestimate themselves, while the Dunning-Kruger Effect is when low-skill people overestimate themselves. They are mirror images — one is unwarranted self-doubt, the other unwarranted self-confidence.
How can leaders support employees with impostor syndrome?
Leaders help by giving specific, honest feedback that names real strengths, and by pairing new hires and newly promoted staff with mentoring and structured onboarding. Affirming genuine competence at moments of stretch — like a promotion — is particularly effective.