What is the actor–observer bias in simple terms?

When I am late, I blame the traffic; when someone else is late, I think they are lazy. It arises because we judge our own behavior by looking at the situation and others' behavior by looking at the person.

Is the actor–observer bias the same as the fundamental attribution error?

They are related but different. The fundamental attribution error covers only the tendency to blame others' behavior on personality, while the actor–observer bias compares how we explain ourselves versus others. A recent meta-analysis suggests the actor–observer asymmetry is weaker than once thought.

Actor–Observer Bias

🧠 Psychology By CampusDown Wiki Editorial Team Last updated October 27, 2026

The actor–observer bias is the tendency for people to attribute their own behavior to the situation while attributing the same behavior in others to personality or disposition. Proposed in 1971 by the social psychologists Edward Jones and Richard Nisbett, it is explained by differences in attention: actors look out at their surroundings, whereas observers focus on the actor. A classic concept of attribution theory, it was qualified by Malle's 2006 meta-analysis, which found the effect smaller and more conditional than assumed.

Contents

1. The hypothesis and early experiments
2. Relation to the fundamental attribution error
3. Malle's meta-analysis and reinterpretation
4. FAQ
5. References

The hypothesis and early experiments

Heider (1958) held that people interpret behavior by locating causes either inside the person or in the environment, the starting point of attribution theory. Jones and Nisbett (1971) went further, proposing that actors see their own behavior as a response to situational demands while observers see the same behavior as reflecting the actor's stable traits. In experiments by Nisbett and colleagues (1973), students explained a friend's choice of girlfriend or major by the friend's personality, but their own choices by the qualities of the partner or the field. Storms (1973) showed that replaying a conversation on video from the other person's viewpoint reversed actors' and observers' attributions, arguing that the focus of attention is the key cause.

Relation to the fundamental attribution error

The fundamental attribution error refers only to observers underestimating situational forces when explaining others' behavior. The actor–observer bias is an asymmetry concept that also compares how people explain their own behavior. Reviewing the literature, Watson (1982) concluded that actors, like observers, make many dispositional attributions, and that the difference lies mainly in the degree of situational attribution. Choi and Nisbett (1998) reported a cultural difference: Korean participants reduced dispositional attributions more readily than Americans when situational information was salient. Pronin, Lin and Ross (2002) described the bias blind spot, in which people readily detect bias in others' judgments but not in their own.

Malle's meta-analysis and reinterpretation

Robins and colleagues (1996) reported that actor–observer differences were not clear when the same people interacted repeatedly. Malle's (2006) meta-analysis of 173 studies found that the classic actor–observer asymmetry averaged close to zero and varied with conditions, such as whether the behavior was negative or the scenario hypothetical. Malle (1999) and Malle, Knobe and Nelson (2007) proposed an alternative framework in which actors and observers differ in how they explain intentional behavior with reasons, that is, beliefs and desires. Today the bias is understood less as a universal law than as a concept showing how differences in information and perspective shape attribution. It is often studied alongside hindsight bias and confirmation bias in social cognition.

FAQ

What is the actor–observer bias in simple terms?: When I am late, I blame the traffic; when someone else is late, I think they are lazy. It arises because we judge our own behavior by looking at the situation and others' behavior by looking at the person.
Is the actor–observer bias the same as the fundamental attribution error?: They are related but different. The fundamental attribution error covers only the tendency to blame others' behavior on personality, while the actor–observer bias compares how we explain ourselves versus others. A recent meta-analysis suggests the actor–observer asymmetry is weaker than once thought.

Sources reviewed: 2026-10-26

References

Heider, F. (1958). The Psychology of Interpersonal Relations. New York: Wiley.
Jones, E. E., & Nisbett, R. E. (1971). The actor and the observer: Divergent perceptions of the causes of behavior. In E. E. Jones et al. (Eds.), Attribution: Perceiving the Causes of Behavior (pp. 79–94). Morristown, NJ: General Learning Press.
Nisbett, R. E., Caputo, C., Legant, P., & Marecek, J. (1973). Behavior as seen by the actor and as seen by the observer. Journal of Personality and Social Psychology, 27(2), 154–164.
Storms, M. D. (1973). Videotape and the attribution process: Reversing actors' and observers' points of view. Journal of Personality and Social Psychology, 27(2), 165–175.
Watson, D. (1982). The actor and the observer: How are their perceptions of causality divergent? Psychological Bulletin, 92(3), 682–700.
Robins, R. W., Spranca, M. D., & Mendelsohn, G. A. (1996). The actor–observer effect revisited: Effects of individual differences and repeated social interactions on actor and observer attributions. Journal of Personality and Social Psychology, 71(2), 375–389.
Choi, I., & Nisbett, R. E. (1998). Situational salience and cultural differences in the correspondence bias and actor-observer bias. Personality and Social Psychology Bulletin, 24(9), 949–960.
Malle, B. F. (1999). How people explain behavior: A new theoretical framework. Personality and Social Psychology Review, 3(1), 23–48.
Pronin, E., Lin, D. Y., & Ross, L. (2002). The bias blind spot: Perceptions of bias in self versus others. Personality and Social Psychology Bulletin, 28(3), 369–381.
Malle, B. F. (2006). The actor-observer asymmetry in attribution: A (surprising) meta-analysis. Psychological Bulletin, 132(6), 895–919.
Malle, B. F., Knobe, J. M., & Nelson, S. E. (2007). Actor-observer asymmetries in explanations of behavior: New answers to an old question. Journal of Personality and Social Psychology, 93(4), 491–514.

Reports and materials that use this theory (Korean)

There are no materials dedicated to this theory yet, but you can search related reports in the CampusDown library (Korean).

Find more reports · Search '행위자-관찰자 편향' on CampusDown →

Fundamental attribution errorWhat is the fundamental attribution error? Lee Ross’s 1977 term, Jones and Harris’s 1967 Castro essay experiment, the related correspondence bias, everyday examples, the actor–observer bias, cultural differences, explanations from Gilbert and Malone, and ways to reduce it.🧠 Psychology Attribution TheoryWhat is attribution theory? Heider’s internal vs external attributions, Kelley’s covariation model, Weiner’s three dimensions of achievement attribution, the fundamental attribution error, actor–observer and self-serving biases, with classroom and workplace examples.🧠 Psychology Confirmation BiasConfirmation bias explained: seeking, interpreting and remembering information that fits what you already believe, Wason's 2-4-6 task, Lord, Ross and Lepper's biased assimilation study, filter bubbles, and ways to counter it.🧠 Psychology Overconfidence BiasWhat overconfidence bias is: the tendency to overrate one's abilities, relative standing or accuracy, its research history, calibration and confidence-interval studies, Moore and Healy's three forms, evidence in finance and management, and critiques.🧠 Psychology Hindsight biasHindsight bias is the tendency, after learning an outcome, to see it as having been more predictable than it was: the “I knew it all along” effect.🧠 Psychology

Latest ArticlesView all ›

New guides for college study and assignments (Korean)

This article was last updated on October 27, 2026. It is based on widely recognized original works and textbooks; when citing it in a paper, please check the original sources listed in the references.