Social psychology is the study of how people and groups interact.

Nonprofit groups routinely interact with local government officials on mundane matters, they say.

"The different ethnic groups don't really interact that much," he says.

Several black and Jewish parents decided to establish an alternative school so that the various ethnic groups could more easily interact with one another.

The group does not have a leader, but instead interact with each other dynamically.

By way of satellite, corporate groups can interact with others at more than 60 network sites.

It would be foolish to believe that any group of people can interact without a political undercurrent.

These groups can therefore interact in the protein structure.

Blacks, whites and other ethnic groups interact every day, but to a large extent they live separately.

The groups interact and compete to solve the mysteries, even keeping a tally on a wall.