President Carter's description of his negotiations with President Sadat of Egypt and Prime Minister Begin of Israel at Camp David in 1978 was coded to illustrate the extent to which levels of creativity and types of pressures toward conformity were involved. Two sets of categories were used. (Author/ABB)

Two social psychological theories--similarity theory and equity theory--are employed to elucidate the relationship between group members' abilities and group performance on tasks involving high levels of interdependence. Contrasting hypotheses are drawn regarding specific ability compositions that should evoke performance above or below the simple…