Rejecting the null hypothesis when in fact it is true is a(n) __________

Norma has been working for the same organization for 25 years. She has worked there so long she is an invaluable resource to people across the organization; she feels an obligation to stay with this organization for the rest of her career. Norma is exhibiting

a. continuance commitment b. normative commitment c. affective commitment

"Helpless" animals display which of the following characteristics?

a. increased activity b. increased aggression c. blunted appetite d. all of these characteristics