Character and Circumstance

A car cuts across two lanes in front of you. You have an explanation immediately, and it is about the driver: aggressive, entitled, not paying attention. Three weeks later you do the same manoeuvre yourself, and your explanation is entirely different. The exit came up faster than you expected, there was a van in the mirror, you were late for something that mattered.

Both explanations may be true. What is striking is that the two categories are assigned so consistently by position. Other people act out of character. You act out of circumstance.

The classic demonstration is Edward Jones and Victor Harris's, in 1967. Students read essays either supporting or opposing Fidel Castro and then estimated the writer's real attitude. The unsurprising result is that pro-Castro essays were taken to indicate pro-Castro views. The surprising result is that this held even when participants were told explicitly that the writer had been assigned the position by a coin toss, had no choice about it, and in some versions had been handed the arguments to use.

There is no inference available there. The essay is evidence about the experimenter's instructions and nothing else. People drew a conclusion about the author's character anyway, and the effect was large.

Lee Ross named this the fundamental attribution error, and later regretted the word "fundamental" Partly because it is not universal, and partly because the more interesting version is the asymmetry rather than the error. The actor-observer gap is the finding that the same person will explain their own behaviour situationally and someone else's dispositionally, in the same afternoon, about the same action.

Why? Two reasons, and the first is almost embarrassingly physical. When you act, what you can see is the situation: the traffic, the deadline, the room. Your own disposition is not in your visual field. When you watch somebody else act, the person is the most salient thing in the scene and the pressures on them are invisible; you did not see their morning. Attribution follows attention, and attention follows what is in front of you.

The second reason is informational. You know that you behave differently in different settings, because you have watched yourself do it for years. You have usually seen another person in one context, which makes their behaviour look like a constant. The evidence available genuinely supports a more dispositional reading of a stranger than of yourself. It just supports it much less strongly than people take it to.

The cultural evidence complicates the picture in a useful way. The effect is measurably weaker in East Asian samples, where explanations reach for context and relationship more readily, and this was one of the earliest solid demonstrations that a "basic" cognitive tendency could vary by culture. It does not vanish (the pattern is a difference of degree) but it was an early warning that a finding established on American undergraduates might be a finding about American undergraduates, which is a theme this book returns to.

The place this matters most is inside organisations, and it is expensive. When something goes wrong, the dispositional explanation is available immediately and the situational one requires investigation. So the nurse who made the error gets a warning, and the drug packaging that made the error easy stays on the shelf for the next nurse. Aviation and anaesthesia got dramatically safer partly because both disciplines decided, deliberately and against instinct, to treat human error as a symptom of a system rather than a fact about a person. "Who did this?" is a faster question than "what made this the easy thing to do?", and it is the wrong one nearly every time.