To Explain the Human Universality and Variability of Emotions, Ekman

Multiple Choice

To explain the human universality and variability of emotions, Ekman and his associates __________

A) developed a concept of "display rules," which are rules for emotional expression.
B) developed an interobserver system to make sure that observers defined expressions reliably.
C) interviewed all participants in order to assess unexpressed feelings and motivations.
D) monitored the brain waves of participants to determine which hemisphere had higher activation.