Developed in 1968 by researchers Rosenthal and Jacobson, the theory of the Pygmalion effect rests on a powerful idea: a person improves their performance through the simple act of receiving a positive perception from those around them. Applied to management, it means that the way a manager perceives their employees and communicates that perception directly influences their results. A remarkably effective lever, provided it is properly understood and thoughtfully deployed.
The Pygmalion Effect: Origins and Mechanism
Before exploring its practical applications, it is worth understanding where this theory comes from and how it actually operates in human relationships.
From a Greek Legend to a Management Theory
The name of this effect is borrowed from Greek mythology. Pygmalion, a young sculptor, carved a block of wood into the form of a woman. Falling in love with his creation, he asked the goddess Aphrodite to bring her to life. He believed so deeply in his wish that it was ultimately granted: the statue became a woman. A self-fulfilling prophecy that has travelled through the millennia to give its name to one of the most well-documented theories in management.
In a professional context, this theory holds that by empowering employees, sending them genuine positive signals and expressing real confidence in their potential, we lead them to reach a level that surpasses their starting point. This effect is all the stronger where a hierarchical relationship exists between the two individuals: the expectations of a manager carry more weight than those of a peer.
The Unconscious Mechanism at Work
The central mechanism of the Pygmalion effect is that of the self-fulfilling prophecy. It operates largely unconsciously, through a dual dynamic that both parties enact without always being aware of it.
On one side, people tend to conform to what others expect of them. On the other, our behaviour is shaped by what we think of someone. A manager who is convinced of an employee's capabilities entrusts them with greater responsibility, unconsciously minimises their mistakes and consistently projects a genuinely positive regard. The employee, encouraged and supported, naturally develops their full potential. The reverse is equally true: an employee who is undervalued or perceived negatively will tend to conform to that image, a phenomenon known as the Golem effect. Information is often conveyed more powerfully through behaviour, gestures, eye contact and tone of voice than through words themselves.
The Research That Has Documented the Pygmalion Effect
The Pygmalion effect is not based on intuition: it has been demonstrated through rigorous research, two cases of which are particularly significant for managers.
The Rosenthal and Jacobson Study in San Francisco
The foundational study was conducted in a San Francisco primary school. Rosenthal and Jacobson administered IQ tests to several pupils, then presented the results to teachers, identifying 20% of the children as highly intelligent. In reality, these 20% had been randomly selected, and their results had been deliberately inflated without the teachers' knowledge.
Throughout the year, the teachers' behaviour towards these pupils was observed. Three distinct attitudes emerged: consistent encouragement and recognition, including the granting of greater responsibility; a positive predisposition in all interactions; and an unconscious selective judgement that minimised their errors. At the end of the year, a new IQ test was administered. The results were clear: the 20% of pupils identified as having superior intelligence had shown significant improvement, both in their academic results and in intelligence tests. The simple act of believing in someone's success improves their chances of achieving it.
The Oberländer Case: Three Teams, Three Trajectories
J. Sterling Livingston, in a celebrated 1969 article in the Harvard Business Review, recounts the story of Alfred Oberländer, manager of an American insurance agency. To address disruption within his team, Oberländer proposed reorganising into three distinct groups: the first brought together the best manager and the employees considered the highest performers; the second grouped a middling manager with profiles deemed average; the third assembled those perceived as the weakest performers. Every employee was aware of their allocation.
After several months, the results were unambiguous. The first team, identified as the best, outperformed even the high expectations set for it. The second team also outperformed, driven by a manager who genuinely believed in their potential and that of their employees. The third underperformed, in line with the negative image it had been given. A further observation, highlighted by Sweeney, emerges from this study: a significant part of employees' success depends on the manager's own belief in their ability to transmit, motivate and lead. What a manager thinks of themselves influences what they expect of others and how they behave towards them.
How to Put the Pygmalion Effect into Practice
Understanding the Pygmalion effect is one thing. Integrating it into everyday management in a structured and genuine way is what produces lasting results.
Finding the Balance Between Confidence and Grounding in Facts
Managers who adopt a warm, encouraging approach with their teams often achieve results that surpass what could reasonably be expected. As the philosopher Hegel put it: "it is in the eyes of others that each of us is shaped." Setting expectations too low can hinder the development of an employee's potential. But excessively high expectations can create counterproductive pressure and generate insecurity rather than confidence.
To recognise an employee in a fair and meaningful way, it is helpful to draw on concrete data: observed skills, identified strengths, measured progress. Having a structured view of each individual's development makes it possible to sustain this positive approach without losing touch with reality. This is what distinguishes genuine, evidence-based recognition from hollow praise.
The Early Career Years: A Critical Window
The early years of an employee's career represent a particularly decisive period. At this stage, the expectations that their professional environment projects onto them exert a powerful and lasting influence on their future performance. An employee who feels perceived as talented tends to carry that self-image for several years, until their achievements either confirm or challenge it.
It is therefore essential to encourage younger employees from the moment they join, and to take into account how they have been managed before joining the organisation. After a few years, simply adopting a positive approach is no longer sufficient: other factors come into play, including accumulated successes and failures. Building a positive image early on is a managerial decision that shapes an employee's trajectory over the long term.
