Does Plain Language Undermine Expertise? What Research Says About Clear Writing
You’ve heard the argument: if you make scientific or technical writing clearer, you’re “dumbing it down.” This claim comes up often in scientific, technical, and policy communication — especially when a writer is working with subject matter experts.
But research and experience point in the same direction: clarity doesn’t weaken expertise. It strengthens it.
Most communicators know that isn’t true. But that doesn’t make it any easier to respond — especially when it comes from someone more senior or more credentialed.
Decades of research shows that writers who use simpler language are consistently rated as more intelligent, confident, and competent than those who rely on jargon. The more educated the reader, the more likely they are to prefer clear writing. But that doesn’t make it any easier to respond — especially when the comment comes from someone more senior, more credentialed, and protective of their discipline.
So what do you do when someone says you’re “dumbing it down”?
Three Ways to Respond When Clarity is Misunderstood
Here are three ways you can respond calmly and professionally.
1. Focus on the audience and the goal.
Ask: Who is this for? What are we trying to achieve? When working with internal clients, the best way to be seen as a strategist is to focus the conversation on audiences and goals.
When I worked with pediatric researchers, the goal of a news release wasn’t to impress other scientists. It was to help parents understand how research could benefit their children. When communicating with donors, the objective was different — explain the work in language they could confidently share with others.
Clarity isn’t simplification for its own sake. It’s alignment with purpose.
2. Distinguish communications outlets.
Not all writing serves the same function. Academic journals communicate technical detail among specialists. Precise and discipline-specific language are essential in that setting.
Public-facing communication serves a different role. It translates expertise so broader audiences can understand its implications.
Simplifying language in one context doesn’t diminish rigor in another. It just reflects a different goal.
3. Cite research, not preference.
If a disagreement about language becomes subjective — “This sounds too simple” — it can help to bring the conversation back to evidence. A large body of research supports the value of plain language. For example, research on language and perception consistently shows that unnecessary complexity can reduce comprehension and even lower perceived credibility.
Why the Tension Persists
The resistance many communicators encounter isn’t about writing. It’s about identity. For experts, language often signals belonging and status within their professional community. Simplifying terminology can feel like stepping outside that community.
But when experts communicate clearly with broader audiences, they are demonstrating their expertise — not diminishing it. Explaining complex ideas in plain language requires a deep understanding of the subject.
When communicators help experts do that well, they expand the reach of research, strengthen public trust, and increase the real-world impact of knowledge.
That’s not dumbing anything down. It’s how expertise reaches the people it’s meant to serve.
Read More: Research on Plain Language
Here are a few widely cited studies that support the idea that clear writing strengthens credibility:
Daniel Oppenheimer, 2006: Unnecessarily complex language can make writers appear less intelligent.
Joseph Kimble, Writing for Dollars, Writing to Please, 2012: Plain language improves comprehension and reader preference.
Susan Stableford and Wendy Mettger, 2007: Plain language improves understanding and health decision-making.
Adam L. Alter and Daniel M. Oppenheimer, 2009: Information that’s easier to process is perceived as more credible.