When I was an undergraduate in the early 1980s I said very little in class. I was shy and diffident and felt much more comfortable expressing myself in writing than by speaking. More than 30 years later I am much the same, even though I have learned how to at least appear confident as a university professor. I guess that is part of the role I have to play.

But this is hardly a unique personal revelation. Many teachers are what Susan Cain, in her best-selling book Quiet: The Power of Introverts in a World that Can’t Stop Talking (2012), calls “pretend extroverts”, who have learned to cover up their shyness in the classroom. More widely, it is estimated that anything between a third and a half of people are introverts. This must logically apply to the students we teach at university.

However, university students are no longer allowed to be shy. “Active learning” has become a modern mantra. Students must ask questions, express opinions, lead oral presentations and participate enthusiastically in community projects. To collaborate is sacrosanct. Passivity, on the other hand, is considered the enemy of learning. They must be vocal, expressive and assertive. The extrovert ideal, as Cain calls it, is all the rage.

There is simply no place any more for the introvert. Shyness has, according to Susie Scott, reader in sociology at the University of Sussex, been medicalised as an antisocial condition in modern society. Being shy is also out of step with what it means to be a good university student. Time and effort must be tracked by monitoring students’ attendance, class contribution and community engagement. The key is that students must be seen to be learning. Such engagement is said to lead to better degree results and improved career chances.

Student talk is equated with evidence of learning. This, allied to the pragmatic reality of assessing large numbers of students in an era of mass higher education, is why class contribution grading has been on the rise. It used to be that this was mainly a North American phenomenon, yet this practice is now common in the UK and found all around the world as the assumptions of the student engagement movement spread far and wide.

I recently sat in on a master’s degree class at one of China’s leading universities. At first I was impressed by the eagerness of students to raise their hands, make comments and ask questions, until I realised that a teaching assistant was noting down how often each one contributed using a tick list. I later learned that this was the mechanical means by which individual class contribution grades were being generated.

Asking questions or speaking in class have become performative expectations. Like all forms of performativity, applicable to academics and students alike, only things that are observable count. Only what is visible is audited. This is why there is no place in the new regime of student engagement for shy students who might participate in less obvious ways through active listening, making eye contact, taking good notes and even, dare I say, thinking.

Such subtlety is not understood in the brave new performative world of university learning. Worse still, shy students are stigmatised as “social loafers” or online “lurkers”. This judgemental labelling applies to individuals who read and observe but do not make oral or written contributions in class or on discussion forums. Loafers and lurkers are branded as selfish, borderline sociopaths who take without giving to the learning community.

It is estimated that anything between a third and a half of people are introverts. This must logically include the students we teach at university

As teachers we are quick to think of silence in class as a problem. We assume that unless students are talking they are not learning. Silence also offends our sense of self-importance and self-worth. Why, we resentfully ask ourselves, are they not interested in what we have to say or in ideas we hold dear? As a result we tend to blame quiet students for being surly or ill-prepared. Yet according to Mary Reda in her book, Between Speaking and Silence: A Study of Quiet Students (2009), listening and reflective introspection need to be understood as legitimate forms of class participation. Silence is just as likely as talking to indicate an engagement with the ideas of others.

The virtues of being shy are, in fact, well suited to many of the central values of higher education. These include not being overconfident about making knowledge claims and thinking ideas through before speaking. Yet shy students are seen as in need of therapeutic treatment. There is plenty of advice on helping them to become more self-confident and vocal. Universities run courses for students who want to develop their speaking skills and there are also special reticence courses for shy students at universities such as Pennsylvania State in the US.

Many of these courses are aimed at encouraging students to become more self-assured speakers now that group-based oral presentations have become so widely used as an assessment tool. However, while the performative drama of the oral presentation allows the self-confident to shine, the shy are often left eyes to the floor, shuffling their feet at the back of the group. Grading tends to focus on oral loquacity during the PowerPoint-led oral presentation, especially since this is the visible, albeit transitory, product. This allows the extrovert to make a positive impression regardless of how little they may have contributed along the way. The many hours of background research and preparation to which the shy may have contributed more substantially is rarely assessed.

Students, we are told, must learn in groups because this reflects the realities of the workplace. The evidence, though, suggests that students often find peer learning to be a poor use of their time. Research indicates that they resent listening to dominating classmates during group work. Moreover, contrary to the urban myth, peer group learning does not reflect the reality of the workplace because work environments are based largely on groups composed of individuals of different ranks, a built-in means of controlling free-riders.

Nor can modern-day students afford to be modest. They must now convey self-confidence and passion by wanting to shape and shake the world as potential future leaders and active global citizens. I recall spending many Saturday mornings during my youth helping to recycle newspapers by collecting them on my bicycle as a boy scout. Nowadays such activities would be trumpeted as evidence of global citizenship and a commitment to sustainability. It would never have occurred to me for a moment to make capital out of such actions – frankly, it would have made me feel embarrassed. Self-confident students do not care more than shy ones, they are simply better at bragging about it in building the evidence required for grades or aggrandising their CVs.

Many of the pressures that discriminate against shy students are based on Western assumptions about the dialogic nature of knowledge construction. The growth and internationalisation of Western higher education models in Asia has led to these assumptions being applied to students from Confucian-heritage and other Asian cultures, with little attention paid to social values in these contexts. There is also a widespread misconception that a shy disposition is something unique to Chinese and other Asian students. Correspondingly, Western students are stereotyped as confident talkaholics. The more complex reality is that many students in Western universities are just as likely to be introverts, with a preference for quiet introspection.

As well as group work, students are increasingly assessed on the basis of reflective practice assignments that demand an opening up of the private and the personal. These are intended to produce an authentic insight into how trainee teachers, social workers or nurses, say, have developed their thinking and practice on the basis of experience. They are also deployed as a way for students to consider their own attitudes to social issues more generally.

Reflective assignments require a confessional performance. This is something that many students, and especially the shy, find difficult because there is a built-in expectation that such reflections will be “deep” and therefore self-revealing. Students need to show how they have changed as a person as a result of educational or working experiences. They are mainly about demonstrating attitudes rather than knowledge.

Reflective assignments pose great challenges for the shy or reticent. The more creative seek to protect their privacy by concocting a reflection that, while appearing revelatory, is little more than an exercise in creative writing. Some do this by inventing stories of personal transformations or “journeys”. It is hardly surprising that the Facebook generation, brought up on a diet of reality TV, have learned how to mask their real selves in order to protect their privacy.

Respecting diversity” is a rhetorical boast in the higher education sector but, in reality, there is a collective failure to respect the fact that not all students have the same personality traits. Many of us recall the iconic BT advertisement in which we were told “It’s good to talk”. In university classrooms talk is no longer just good, it is compulsory.

Those that promote this agenda refer, almost reverentially, to their commitment to “student-centred” learning, a term originally coined by the psychotherapist Carl Rogers in his 1951 book, Client-centered Therapy: Its Current Practice, Implications and Theory.

However, Rogers’ own students commented on how they could talk or be silent and were free from the pressure to participate or espouse particular opinions. In short, they were free to learn. I believe that there is a need to reclaim the original meaning of “student-centred” and that we should respect a student’s right to privacy, to reticence and even to silence.

Success in life depends on many things and a dose of self-assurance is undoubtedly one of them. There is nothing wrong with helping to build student confidence, but learning at university should be valued as an opportunity for individuals to engage with knowledge in different ways, rather than a public performance. We need to press the pause button and give our students some space to breathe.