Social Facilitation
The tendency to perform simple or well-practiced tasks better in the presence of others than alone.
Social Inhibition
The tendency to perform complex or difficult tasks more poorly in the presence of others.
Social Loafing
the tendency for people in a group to exert less effort when pooling their efforts toward attaining a common goal than when individually accountable.
Deindividuation
the loss of self-awareness and self-restraint occurring in group situations that foster arousal and anonymity
Bystander Effect
the tendency for any given bystander to be less likely to give aid if other bystanders are present
Group Polarization
the enhancement of a group's prevailing inclinations through discussion within the group
Groupthink
the mode of thinking that occurs when the desire for harmony in a decision-making group overrides a realistic appraisal of alternatives
Cognitive Dissonance
inner tension that a consumer experiences after recognizing an inconsistency between behavior and values or opinions
Foot-in-the-door Phenomenon
the tendency for people who have first agreed to a small request to comply later with a larger request
Self-Serving Bias
The tendency to attribute one's successes to personal factors and one's failures to situational factors.
Fundamental Attribution Error
the tendency for observers, when analyzing another's behavior, to underestimate the impact of the situation and to overestimate the impact of personal disposition
Conformity
adjusting one's behavior or thinking to coincide with a group standard
Obedience
changing behavior in response to a demand from an authority figure