Action Bias: Why Your Type Decides Whether You Jump or Stay

The penalty kick study everyone quotes misses the most important question.

You’ve probably seen the study. Michael Bar-Eli and his team at Ben-Gurion University analysed 286 penalty kicks across top European leagues and found that goalkeepers who stayed in the centre of the goal stopped 33% of all kicks, while those who dove left or right stopped only 25-30%. The rational strategy is clear: stay put. Yet goalkeepers dive anyway, because the psychological cost of doing nothing and conceding feels worse than doing something and conceding.

This is action bias: the tendency to favour action over inaction under pressure, even when inaction is the statistically superior choice.

It’s a neat study. It makes for a great LinkedIn post. And every time it resurfaces, someone draws the same conclusion: “Marketers do this too. They abandon working campaigns to chase novelty. They should just stay in the centre.”

That conclusion is true. And it’s also lazy. Because it treats action bias as a universal human failing, a single bug in the operating system that affects everyone equally. It doesn’t. The most interesting question isn’t whether we suffer from action bias. It’s who suffers from it, why, and whether the opposite bias is equally dangerous.

Action bias isn’t universal. It’s type-dependent. And the type you are determines not just whether you jump, but what happens after you land.

The Architecture of a Bias

Before we get to types, we need to understand the machinery.

Action bias sits at the intersection of three psychological forces that the STAR Operating System identifies as foundational to human behaviour. The first is Dual Process Theory, the distinction between System 1 (fast, instinctive, automatic) and System 2 (slow, deliberate, analytical) thinking. Action bias is a System 1 phenomenon. It fires before System 2 has time to calculate the expected value of staying put. The goalkeeper’s body is in the air before their prefrontal cortex has finished processing the odds.

The second force is Regulatory Focus Theory, which describes two motivational orientations: promotion-focus (driven by gains, growth, and opportunity) and prevention-focus (driven by safety, security, and avoiding losses). Promotion-focused individuals are more susceptible to action bias because action feels like progress. Prevention-focused individuals are more susceptible to the opposite: inaction bias, because staying put feels like safety.

The third force is the emotional dimension, which Appraisal Theory explains. We don’t just make decisions; we appraise situations emotionally before we make them. The goalkeeper who dives isn’t calculating probabilities. They’re appraising the emotional consequence of standing still while a goal flies past them. The appraisal is: “That would be unbearable.” The dive is an emotional escape, not a strategic choice.

These three forces interact differently in different people. And that’s where STAR gets interesting.

Four Types, Four Relationships with Action

The STAR Operating System identifies four core mindsets, each driven by a fundamental psychological need from Self-Determination Theory. Socialisers need relatedness. Thinkers need competence. Adventurers need autonomy. Realists need security. Each type processes the action-inaction decision through a distinct psychological lens, and each has a characteristic bias that looks nothing like the others’.

Adventurers: The Default Jumpers

Adventurers are the textbook action bias candidates, and the reason is structural. Their cognitive default is System 1 processing: instinctive, rapid, and biased toward movement. Their regulatory orientation is strongly promotion-focused: they lean toward the bold option if it could pay off. And their core psychological need is autonomy, which means that doing nothing feels like a loss of control, which is precisely the thing they cannot tolerate.

Put an Adventurer in a penalty situation and they will dive. Not because they’ve calculated the odds, but because inaction feels like paralysis, and paralysis feels like death. The Bar-Eli study is essentially a study of Adventurer psychology applied to goalkeepers.

In marketing and business, this plays out as the serial campaign-switcher, the leader who kills a working strategy to chase a trend, the founder who pivots every quarter. Adventurers experience inaction as stagnation, and stagnation as the opposite of everything they value. The cost of being wrong is tolerable. The cost of standing still is not.

The blind spot: Adventurers don’t distinguish between “action because the situation demands it” and “action because I can’t sit still.” Both feel identical from the inside.

Thinkers: The Paradoxical Stayers

Thinkers should be immune to action bias. Their cognitive default is System 2: analytical, deliberate, and biased toward calculation. Their regulatory orientation balances promotion and prevention, weighing gains against losses before committing. If any type should stay in the centre of the goal, it’s the Thinker.

And often, they do. Thinkers are the least likely to abandon a working strategy for a shiny alternative. They benchmark, they evaluate, they analyse the expected value of action versus inaction. This is the type that Bar-Eli’s study implicitly recommends everyone become.

But here’s the paradox: Thinkers have their own bias, and it’s the mirror image. Inertia bias. Once a Thinker has invested significant cognitive effort into a strategy, they become attached to it, not emotionally, but intellectually. The Sunk Cost Fallacy hits Thinkers differently than it hits other types. For an Adventurer, sunk costs are irrelevant (“who cares what we spent, what’s the next move?”). For a Thinker, sunk costs represent invested reasoning, and abandoning that reasoning feels like admitting their analysis was wrong. That threatens the core need for competence.

So Thinkers stay in the goal long after they should have dived. They analyse when they should act. They optimise when they should pivot. Their version of action bias is inverted: it’s a bias toward continued inaction because the intellectual cost of changing course feels higher than the practical cost of staying wrong.

The blind spot: Thinkers mistake thoroughness for wisdom. Sometimes the penalty is coming and the only rational move is to jump, even without perfect information.

Socialisers: The Crowd-Driven Decision

Socialisers don’t have an individual action bias. They have a social one. Their decision to act or stay is overwhelmingly influenced by what the people around them are doing.

This operates through the mechanisms that Social Identity Theory describes: social categorisation, identification, and comparison. When a Socialiser perceives that their in-group is acting, they act. When the group hesitates, they hesitate. Their System 1 doesn’t process “what’s the optimal move?” It processes “what’s my group doing?” The answer to that question is their decision.

In a penalty situation, a Socialiser goalkeeper would dive if the coaching staff and teammates expect a dive. They’d stay if staying was the team norm. The statistical evidence is irrelevant compared to the social evidence. This isn’t irrational. For a type whose core need is relatedness, maintaining alignment with the group is the rational strategy, because the cost of social disconnection outweighs the cost of conceding a goal.

In business, Socialisers produce a specific flavour of action bias: bandwagon bias. They adopt new strategies not because the data supports them, but because the industry is moving. They abandon old approaches not because they’ve stopped working, but because nobody’s talking about them anymore. Their action is triggered by social proof, not evidence.

The blind spot: Socialisers can’t tell the difference between “everyone’s doing it because it works” and “everyone’s doing it because everyone’s doing it.” The felt experience is identical.

Realists: The Anchored Stayers

Realists are the natural stay-in-the-centre type. Their cognitive default leans toward System 1 familiarity: they trust proven approaches and instinctively distrust novelty. Their regulatory orientation is strongly prevention-focused: they protect what works and avoid unnecessary risk. Their core need is security, which means that any action that introduces unpredictability is appraised as a threat.

A Realist goalkeeper stays in the centre not because they’ve calculated the odds, but because diving feels reckless and standing feels disciplined. They’d rather concede a goal through disciplined inaction than through speculative action. This makes them the type that Bar-Eli’s study would reward, at least in the penalty context.

But Realists have their own version of action bias, and it’s subtler. Status quo bias. They don’t just prefer inaction; they prefer the current state, whatever it is. This means they’ll stick with a failing strategy not because they’ve analysed it and concluded it’s still optimal, but because it’s the one that exists. Change itself is the threat, not the direction of change.

In business, Realists are the ones who keep running the same campaign long after its effectiveness has decayed. They’re not lazy. They’re not uncreative. They’re prevention-focused, and the emotional appraisal of change is: “This could go wrong.” The emotional appraisal of staying is: “At least we know what we have.” The second appraisal wins, even when the first is more accurate.

The blind spot: Realists mistake stability for safety. Sometimes the penalty is coming and the only safe move is to abandon the position you’re in.

The Team-Level Problem

Here’s where it gets strategically interesting. Most teams are composed of all four types, and most decision-making contexts involve a mix of action bias and inaction bias operating simultaneously.

Adventurers want to move. Thinkers want to analyse. Socialisers want to check what everyone else is doing. Realists want to protect what’s working. The resulting decision isn’t a rational compromise. It’s a tug-of-war between four different biases, and the outcome depends on which type holds the most power in the room.

In organisations that celebrate action, Adventurers dominate. Strategy becomes a series of pivots, each one a reaction to the previous one’s failure. In organisations that celebrate analysis, Thinkers dominate. Strategy becomes an endless cycle of evaluation that never reaches a decision. In organisations that celebrate consensus, Socialisers dominate. Strategy becomes whatever the loudest voices agree on. In organisations that celebrate stability, Realists dominate. Strategy becomes the same strategy, repeated until the market forces a crisis.

The healthiest teams don’t eliminate these biases. They orchestrate them. The Adventurer’s impulse to act is correct when the situation demands movement. The Thinker’s impulse to analyse is correct when the situation demands rigour. The Realist’s impulse to protect is correct when the situation demands stability. The Socialiser’s impulse to align is correct when the situation demands cohesion.

The skill isn’t removing bias. It’s knowing which bias the moment calls for, and which type should lead the decision.

What the Penalty Study Actually Teaches Us

Bar-Eli’s study is usually cited as a lesson about action bias: stop diving, stay in the centre. But that reading misses the deeper insight. The study doesn’t prove that inaction is always superior. It proves that defaulting to your type’s instinctive response is suboptimal.

The goalkeepers who dive aren’t wrong to dive. They’re wrong to dive every time, regardless of context. The ones who’d perform best aren’t the ones who always stay or always dive. They’re the ones who can read the situation and override their default when the evidence demands it.

In STAR terms, this is the difference between operating on autopilot (System 1, type-default behaviour) and operating with intentionality (System 2, situationally calibrated behaviour). The Adventurer who can occasionally stay in the centre. The Realist who can occasionally dive. The Thinker who can occasionally act without complete information. The Socialiser who can occasionally dissent from the group.

That’s not just a penalty kick strategy. That’s leadership.

The goal isn’t to become a different type. It’s to know your type’s default bias well enough to recognise when it’s steering you wrong, and to have the discipline to override it.

Sometimes the best move is to jump. Sometimes it’s to stay. The only consistently bad strategy is to let your type make the decision for you.

David Chadderton spent his twenties and thirties teaching people how to make life-or-death decisions at forty thousand feet. He now applies the same principles to consumer psychology, which, depending on the brief, can feel equally high-stakes. He’s the creator of the STAR Framework and the author of The STAR Framework: Rewriting the Rules of Consumer Engagement (NYC Big Book Award 2025), The STAR Operating System: Decode Mindset, Understand Motivation, Transform Human Behaviour, and Dear Algorithm, It’s Not Me, It’s You. By day, a Chief Marketing Officer. By night, a behavioural science obsessive who writes The Unoptimised Human because he can’t stop thinking about why people do what they do.