The Probability of Truth

You don’t lose the truth as a leader because people are malicious. You lose it because they’re human.

Picture a frontline nurse who notices an equipment issue that only shows up on night shift. She tells her charge nurse who softens the message “It’s not constant; we’ll keep an eye on it”. The manager summarizes it for the director “Occasional nuisance, not blocking care”.

By the time it reaches the VP, it’s a vague “reliability opportunity.” Nobody lied. But the sharp edges that would make the problem urgent were sanded away by perfectly normal impression-management, time pressure, and a little self-protection.

That is the probability of truth at work.

Why leaders routinely hear a filtered story

Across companies and sectors, employees report far less psychological safety than executives think they’ve created. Recent survey data shows executives describing their workplaces as highly safe to speak up, with a sizable drop by the time you reach individual contributors and hourly workers for example in one set of data ~87% positive for executives vs. ~69% for individual contributors.  

This gap in perception is one reason candid information decays as it moves upward. A long trail of research explains why people don’t say the hard thing even when it would help: fear of consequences, futility (“nothing will change”), and norms that reward harmony over friction. 

Add the classic Iceberg of Ignorance idea—most problems are visible at the frontline, but only a small fraction reach senior leaders—and you get the picture: the truest, sharpest details live underwater. Percentages vary, but since Sidney Yoshida first popularized the concept, one pattern has held steady: leaders typically see less than 10% of the real issues. Some are resolved operationally, but most are lost because people keep “sanding off the edges.”

In a lot of cases leaders simply don’t know how to frame work as a process of solving problems, a process of learning or even generate opportunities for experimentation. Even in the most psychologically safe environments people can be left wondering when, why and what is the most valuable things to contribute.   

This is a problem that lately I have had several opportunities to clarify. Having psychological safety does not mean people speak up. Psychological safety is an assessment of our environment - we can assess it as safe and never use that environment to share candid thoughts. Accountability - obligation and orientation towards high standards - this is built and managed by leaders. The key is to create an environment where people can speak - and have a reason to do so.

And even when people do feel safe, “feeling heard” is a separate hurdle. Leaders must notice, acknowledge, and act on what they hear for candor to keep flowing. Psychological safety is correlated with feeling heard, but it isn’t sufficient by itself.  

A simple calibration

When I coach leaders, I often ask: “What percentage of full candor do you think your team gives you on tough topics?” Whatever number they offer, I suggest multiplying it by 0.7 - a reality check against optimism and status bias. Leaders almost always overrate psychological safety; surveys show their scores are consistently higher than their teams’.

Why? Because people naturally signal things are better than they are, and leaders - especially senior ones - fall into the trap of thinking, “I would speak up to me.” They forget the weight of their own authority.

So, use 0.7 to humble your estimate. It helps leaders see that candor is a variable, not a guarantee - and variables can be moved.

Raising the probability of truth: stories, structures, and signals

A plant manager once told me he had an “open door policy.” Yet his best mechanic still texted a friend in procurement to route a safety concern sideways - he didn’t want to look incompetent. The manager believed he was approachable; the mechanic felt constantly evaluated, even walking across the plant floor.

When the manager reframed the issue as a design problem, not a personal one, things shifted. He began saying, “I miss things—help me catch blind spots,” and built speaking-up moments into daily huddles. The signal changed. Problems surfaced earlier. Downtime dropped.

This pattern of modeling behaviour, inviting input, structure, and responding productively captures what Amy Edmondson and Jim Detert have long taught. Edmondson shows that how leaders frame the work shapes candor: when it’s framed as execution, people stay quiet; when it’s framed as learning and problem-solving, they speak up.

Add to that a leader’s own acknowledgement of fallibility - “I might be missing something here” or “I could be wrong” and suddenly the risk of telling the truth feels lower. Curiosity, when it’s modelled through genuine, targeted questions, becomes contagious; people start to believe that their perspective is wanted, not just tolerated.

Rewarding Courage

The missing link is often that courage is needed to bridge the gap when psychological safety is low - but is courage rewarded?

Courage at work isn’t recklessness - it’s not blurting out every thought or throwing bombs of criticism. This is an action that is aligned with values-aligned action despite risk, the kind of courage that is skillful rather than impulsive. People don’t suddenly become braver because the boss says “my door is open.” They become braver when leaders create real structures—explicit practices, routines -- and rewards with acknowledgment and appreciation that makes speaking up part of how the team operates. 

In practice, when leaders model curiosity, invite contribution, put structures in place for candor, and respond thoughtfully, they build a system where truth has a fighting chance of surfacing. Without those deliberate moves, the probability of truth drops dramatically.

Simple moves that actually change behavior

• Model the cost of silence. Tell a brief story about a time you harmed results by staying silent or by punishing candor (even subtly). Mark the turning point and the new norm. This resets what’s “sayable.”

• Name the power gap out loud. Try: “Because I sign reviews, people will naturally edit what they tell me. I don’t want that. Here’s how we’ll make truth safer and faster here.” It’s amazing how fast this unlocks real talk when paired with structure.

• Make “truth” a role, not a favor. In a pre-mortem, assign someone the “red team” hat. Don’t wait for a volunteer. When candor is a role, it’s less personal—and more common.

• Close the loop visibly. When someone shares tough news, narrate what you’ll do and by when. If you can’t act, explain why. This is the engine of “feeling heard.”  
  

Structured approaches that melt the iceberg (use these as a playbook)

• Pre-mortems on anything consequential. Before green-lighting, ask: “It’s six months later and we failed—what did we miss?” Collect silent notes first, then round-robin so the first brave voice doesn’t have to carry the room.  

• Skip-level “truth rounds.” Monthly, run a 30-minute session with three prompts: What are we pretending not to know? Where is process slowing the customer? What did you try to say last month that didn’t land? Commit to one small fix per round and publish it. 

• Friction log. Ask the frontline to keep a one-week log of top 5 recurring hassles. Review on Fridays; fix one per week. The compounding effect is massive.

• Response rules. Agree as a team: first response to candor is “thank you + one question.” No pile-ons. No rebuttals for 24 hours on non-urgent issues. This protects the first mover.
  

Bringing it all together

Leaders rarely fail because they’re uninterested in the truth. They fail because their systems make truth optional. The higher you go, the friendlier the air gets—and the less oxygen there is for dissent. The cure isn’t a motivational poster; it’s the daily choreography of modeled vulnerability, designed candor moments, and consistent, respectful response.

That’s how you raise the probability that the thing you most need to hear actually reaches you in time to matter.