What is the most frequently used research method in personality psychology?

Breast-feeding triggers the release of the hormone oxytocin. What effect does oxytocin have on mothers during the days following the birth of their neonates?

a. decreases blood pressure b. starts the process of ovulation c. reduces bleeding in the uterus d. delays abdominal cramping

In light of the findings regarding cognitive styles in suicidal individuals, which of the following would be the best course of intervention for treating suicidality?

a) Encourage the client to express their hostility openly. b) Help the client to think of a wide variety of options. c) Challenge the client's negative self-schema. d) Do not bring up the topic unless the client brings it up first.