➢ Assumptions are mental shortcuts rooted in past experiences, culture and upbringing.
➢ They influence how we behave, relate to others and interpret situations.
➢ Challenging assumptions can lead to clearer thinking, better relationships and more informed decisions.
➢ Coaching is a safe space to explore your assumptions and challenge your thinking.
What are assumptions?
Assumptions are the beliefs we hold to be true without questioning or verifying them. They are the silent mental scripts that run in the background of our daily lives. We use them to make sense of the world quickly, without needing to pause and assess every detail.
In many cases, assumptions are helpful. They allow us to operate efficiently in familiar situations. For example, when you walk into your local shop, you assume it is open during usual hours and that people will queue politely. But assumptions can also be limiting, especially when they are unconscious or based on outdated or biased information.
Where do assumptions come from?
Assumptions are shaped by many factors:
● Upbringing and family values: from a young age, we absorb our family’s beliefs about what is right, wrong, possible or acceptable.
● Cultural norms: what is considered polite or rude, normal or unusual, can vary widely from culture to culture. These norms can turn into assumptions that we carry into unfamiliar contexts. For a deeper look into how culture impacts assumptions, have a look at FasterCapital’s article.
● Past experiences: if we have been hurt, praised or misunderstood in certain situations, we often form assumptions about what to expect in the future.
● Social conditioning: education, media and societal narratives feed us subtle (and not-so-subtle) messages about people, roles and expectations.
● Personal fears and insecurities: we sometimes assume the worst because we are protecting ourselves from disappointment or rejection.
These sources combine to create a lens through which we see the world. The trouble is, we often mistake this lens for the truth.
How assumptions influence behaviour
Assumptions act like filters. They shape how we interpret the world, often without us realising it (check out NeuroLaunch for a bit more on the psychology of assumptions). This unconscious influence has a direct impact on how we behave in everyday situations — in our work, relationships and even in how we see ourselves. Let’s look at a few key ways in which assumptions affect our behaviour.
1. Communication breakdowns
We often communicate based not on what is being said, but on what we think someone means. For instance, if you assume someone is being dismissive, you might hear a neutral comment as criticism. Or if you assume you are being ignored, you may stop contributing in meetings, thinking your input isn’t valued — even when no one has actually said that.
Assumptions can also lead us to not communicate at all. We might decide there is no point in having a difficult conversation because we assume we know how it will end — often badly. This kind of mental shortcut prevents honest dialogue and reinforces misunderstandings.
2. Decision-making and risk-taking
Assumptions often influence the choices we make. We might assume that certain paths are closed to us — that we are too old to retrain, not qualified enough to apply for a new role, or that a client won’t be interested in what we offer. These beliefs lead to missed opportunities and decisions that keep us in our comfort zone.
Equally, we may assume others are more competent or confident than they actually are, causing us to hold back and compare ourselves unfavourably. These kinds of untested beliefs shape what we believe we are capable of — and in turn, what actions we take (or avoid).
3. Relationship dynamics
In personal and professional relationships, assumptions can drive tension and distance. For example:
● You might assume a colleague is being cold because they don’t like you, when in reality they are just stressed or distracted.
● You could interpret a friend’s silence as a snub, when they are simply overwhelmed.
● In romantic relationships, people often assume their partner “should know” what they want or how they feel — leading to frustration on both sides when needs go unspoken or unmet.
These dynamics become even more entrenched when assumptions are never checked. Over time, we begin to interact with our assumptions about people, rather than the actual people themselves.
4. Self-sabotage and limiting beliefs
Many of our assumptions are inward-facing. We assume things about ourselves based on past experiences, failures or the opinions of others. These often show up as limiting beliefs — thoughts like:
● “I’m not good at that”
● “No one would want to hear what I have to say”
● “I always get this wrong”
When we act on these assumptions, we often hold ourselves back. We don’t apply for the job, raise our hand in a meeting, or speak our truth in a difficult conversation. Over time, this can damage our confidence and reinforce the very belief that limited us in the first place.
5. Emotional reactions
Assumptions are closely tied to emotional responses. If we assume someone is trying to hurt or embarrass us, we will feel anger, embarrassment or anxiety — and react accordingly. But if we stop to consider that their behaviour might have nothing to do with us, we might respond with calm curiosity instead.
This shift in interpretation can completely change the emotional tone of a situation. By learning to spot the assumption behind the emotion, we create space for a different, often healthier, response.
6. Biases and assumptions
Bias and assumptions are closely linked, and both play a powerful role in decision-making. Bias is the tendency to favour certain perspectives or outcomes, often unconsciously. Together, they shape how we interpret information, what we pay attention to and how we judge people or situations. When decisions are based on untested assumptions or unchecked bias, they can become narrow, reactive or unfair. Strategic Leaders Consulting looks in more detail at the way bias and assumptions can impact decision-making.
Challenging assumptions for a fresh perspective
The good news is that assumptions are not facts — and they can be questioned. Here are some ways to challenge them:
1. Notice when you are making an assumption
The first step is awareness. If you find yourself jumping to conclusions, pause and ask yourself: What am I assuming here? Recognising that it is an assumption — not a certainty — opens the door to clarity and new perspectives.
2. Ask for evidence
Is there proof for what you believe, or are you filling in the gaps based on experience or guesswork? For example, if you assume a friend is upset with you, have they said or done anything to suggest that?
3. Get curious
Curiosity can replace judgement. Ask questions, listen without defensiveness and be open to other explanations. “Can you help me understand what you meant earlier?” is a great way to clear up misunderstandings.
4. Consider alternative viewpoints
Imagine how someone else might see the situation. Could there be other explanations? This can help you step out of your own mental filter and gain insight. You could even ask other people for their take on a situation to get an alternative perspective.
5. Challenge your inner critic
Many of our assumptions are self-directed. “I always mess this up,” “They must think I’m not good enough” — these are often stories we tell ourselves based on fear, not reality. Question them. What would a supportive friend say? What evidence can you find to support or challenge your assumption?
6. Slow down
Assumptions thrive in fast thinking. Taking a breath before responding, especially in emotionally charged moments, gives you the space to choose a more thoughtful approach.
Assumptions in coaching
In coaching, assumptions often come to the surface. Clients might assume they can’t change careers at their age, that their partner won’t understand them or that they are just not leadership material. By exploring these beliefs together, a coach helps shine a light on blind spots and open new possibilities.
Coaching creates a space where assumptions can be safely unpacked, tested and reframed. This process often leads to powerful shifts in thinking and behaviour.
Coaching case study
Rachel, a talented and well-respected senior marketing manager, came to coaching feeling frustrated and demotivated. She had recently led a major campaign that underperformed and she believed the lack of input from her team contributed to the disappointing results.
In the first coaching session, Rachel described her team as “disengaged” and “hesitant to speak up”. She had taken their silence in meetings as a sign that they either didn’t care or didn’t have anything valuable to contribute. Based on this assumption, she made several key campaign decisions without seeking further input, believing it would be quicker and more efficient to press on alone.
Rachel’s assumption — that her team’s quietness meant disinterest or lack of ability — shaped her approach. She stopped asking for ideas, began delegating less and became more directive. This not only reduced collaboration, but also discouraged innovation and left the team feeling sidelined. The result was a campaign that lacked the creative spark and audience insight her team could have provided. The launch fell flat, and Rachel was left with a sense of disappointment — both in the outcome and in her team.
Through coaching, we explored what Rachel believed about her team and where those beliefs came from. Using reflective questioning, we uncovered that her assumption was rooted in past experience — a previous role where team members were disengaged and where silence usually meant resistance. We challenged this belief by looking at alternative explanations:
● Could her team’s silence mean they were unsure of how to contribute?
● Could the structure of meetings be discouraging input?
● What had she done in the past to invite collaboration successfully?
This shift allowed Rachel to see that she had acted on an untested assumption rather than data. She acknowledged that her team were, in fact, committed, but needed more clarity and space to feel confident sharing ideas. Over the remaining coaching sessions, Rachel experimented with new ways of engaging her team. She changed the format of meetings, encouraged pre-meeting contributions and created more psychological safety by explicitly inviting differing views. The effect was noticeable. The team became more vocal, more energised and more involved in shaping outcomes. Rachel reported increased trust within the team and felt more confident in her leadership. Most importantly, she developed a new habit: when something isn’t working, pause and ask, “What might I be assuming here?”
This case illustrates how even experienced leaders can fall into the trap of acting on assumptions. Coaching provided a safe space to slow down, examine underlying beliefs and reframe the narrative. By learning to question her assumptions, Rachel became a more inclusive and effective decision-maker, with improved results to show for it.
Final thoughts
Assumptions are natural — we all make them and at times they have their uses. But when left unchallenged, they can cloud our judgement, narrow our choices and strain our relationships. By learning to spot and question our assumptions, we can start to see situations and people more clearly, respond more thoughtfully and make better decisions.
How have assumptions affected you in your everyday or professional life? Book a free call to explore how coaching can help you challenge and overcome these self-limiting beliefs.
