People tend to overestimate the amount of control they have over their own behavior and underestimate the influence of situational factors.
The placebo effect, where people experience a benefit from a treatment that has no active ingredient, can be a powerful influence on people's behavior and health.
The bystander effect refers to the tendency for people to be less likely to help someone in need when there are other people around.
People tend to be more motivated to avoid losses than to pursue gains, a phenomenon known as loss aversion.
People are more likely to be persuaded by messages that are consistent with their pre-existing beliefs and values.
Social conformity can lead people to change their behavior to match that of a group, even if they know the group is wrong.
People tend to trust those who are similar to them more than those who are dissimilar.
In general, people tend to be more honest when they believe they are being observed by others.
People are more likely to remember negative experiences than positive ones, a phenomenon known as negativity bias.
People tend to be more likely to cooperate with others when there is a potential for future interactions.
In-group bias refers to the tendency for people to favor their own group over others.
People tend to be more attracted to others who are physically similar to them.
People are more likely to follow through on a commitment if they have made a public commitment to do so.
The mere-exposure effect suggests that people tend to develop a preference for things that they have been exposed to repeatedly.
People tend to perceive others who are physically attractive as having other positive traits, such as being intelligent and successful.
People tend to be more influenced by stories and anecdotes than by statistical evidence.
People tend to underestimate the extent to which their behavior is influenced by the context or situation they are in.
People tend to attribute their own behavior to internal factors (such as their personality), while attributing others' behavior to external factors (such as the situation).
People tend to be more motivated by small, immediate rewards than larger rewards that are further in the future.
The framing effect refers to the fact that the way information is presented (framed) can influence people's decisions and behavior.
People tend to be more likely to engage in risky behavior when they are in a group than when they are alone.
People tend to be more likely to comply with requests from someone who is perceived as an authority figure.
People tend to be more motivated by the fear of losing something than by the possibility of gaining something.
People tend to be more likely to help someone who they perceive as similar to themselves.
The fundamental attribution error refers to the tendency for people to overemphasize internal factors (such as personality) and underestimate external factors (such as the situation) when explaining others' behavior.