expectation definition in sociology
role expectation (social role expectation) (noun) The way a role ought to be performed as determined by a group or society. Example: A university student is expected to complete assignments on time and come to class prepared. The terms role expectation and social role expectation are used interchangeably in a sociological context. In contrast to role expectation, role performance is the actual behavior and expression of an individual occupying a role.
Expectancy theory is about the mental processes regarding choice, or choosing. It explains the processes that an individual undergoes to make choices. In the study of organizational behavior, expectancy theory is a motivation theory first proposed by Victor Vroom of the Yale School of Management.