Most advice on being taken seriously arrives as a bag of tricks: stand like this, hold eye contact for that many seconds, adopt a power pose before the meeting. The research on how people actually judge competence is more useful than any of it, and also more unsettling, because it keeps finding the same awkward thing. We form our impressions of how seriously to take someone largely from surface cues, from how a person speaks and how confident they seem, and often we lean on those cues more than on the substance of what they say. That has two implications, one you can act on cleanly and one that comes with a warning attached.
The speech style that quietly undercuts you
The cleanest finding is decades old and has held up well. In 1978, William O’Barr and colleagues, including Bonnie Erickson, published a study in the Journal of Experimental Social Psychology built on observations of real courtrooms, where they had noticed that lower-status witnesses tended to speak in a particular way. They called it the powerless style: frequent hedges (“sort of”, “I think”, “kind of”), hesitations (“um”, “well”), intensifiers (“very”, “really”), overly polite forms, and the habit of letting statements drift upward into a question. They then had people listen to the same courtroom testimony, carrying the same facts, delivered either in that powerless style or in a stripped-down powerful one.
The verdict was lopsided. Listeners rated the powerful-style witness as more credible, more competent, and more trustworthy, though the evidence itself was identical. Only the packaging had changed. The practical lesson is refreshingly subtractive: much of being taken seriously is not about adding gravitas but about removing the verbal tics that invite people to discount you. When you bury a good point under a pile of qualifiers and apologies, listeners hear the qualifiers.
A warning before you blame yourself
There is an important catch, and it is only fair to state it. Those same speech markers were originally identified as correlates of low social status, and later scholars have pointed out that they are also unevenly expected across groups, with women in particular more likely to be socialised into them and more likely to be penalised for them. That means some of the penalty for so-called powerless speech is not a flaw in the speaker at all but a bias in the listener, who hears politeness or care as weakness.
So the finding cuts two ways. It is worth trimming genuine verbal clutter, the reflexive “sorry” and the sentence that dissolves into a question, because clarity helps. But it is a mistake to conclude that anyone not taken seriously has simply spoken wrongly. Sometimes the problem sits squarely with the audience, and the honest version of this research names that rather than quietly telling people to perform a higher-status voice.
The confidence effect, and its double edge
The second cue is confidence, and here the evidence is genuinely uncomfortable. In a 2012 paper in the Journal of Personality and Social Psychology, Cameron Anderson and colleagues ran six studies on what confidence does for a person’s standing. Across them, overconfident individuals gained higher social status in groups, and a closer analysis showed why: confidence produces a behavioural signature, a way of speaking and acting, that observers read as competence. The catch, and it is the whole point, is that this happened whether or not the confidence was warranted. Appearing sure was enough to be treated as able, even when the sureness was not backed by being right.
This explains a great deal about why the loudest voice in a room so often wins it, and it is where the advice turns double-edged. Yes, projecting confidence will make people take you more seriously; the data are clear. But the same mechanism is how groups end up over-trusting bluffers, and confidence uncoupled from actual competence is a debt that tends to come due, usually at the moment a decision has to survive contact with reality. The defensible reading is narrow. Use confident delivery to let real competence be seen rather than hidden behind hedging, not to counterfeit a competence you do not have, because over any length of time the counterfeit is exposed and takes your credibility with it.
What the evidence does and does not settle
Several limits keep this honest. The courtroom study and much that followed it were run in specific settings, often Western and often with student raters, and the effects of speech style vary by culture and context. The confidence research largely concerns the rapid conferral of status in groups, a short-term game, and other work finds that when overconfidence is later revealed, the social reward can reverse into a penalty. Both bodies of work describe averages and tendencies, not laws, and neither is a substitute for knowing what you are talking about.
Within those limits, the useful picture is clearer than the trick-based version and less cynical than it first sounds. Ensuring people take you seriously is mostly two things: clearing away the verbal noise that lets listeners discount your substance, and letting warranted confidence show rather than smothering it. It is worth holding both halves at once, though, the effort to be heard and the awareness that some of the judging is the audience’s bias rather than your failing, because the goal is not to perform seriousness but to stop good thinking from being mistaken for the opposite.