__________ refers to showing no emotion, even though the person is actually feeling one. A good example of this would be the use of a "poker face" when playing cards

According to Piaget, one limitation of concrete operational thought is that children's mental operations work poorly with

What will be an ideal response?

What type of aggression involves damaging another person's reputation among peers through exclusion and malicious gossip?

a. instrumental aggression b. hostile aggression c. relational aggression d. verbal aggression