10. One of the most consistent findings of psychological research is that happy people are also a. more likely to express anger. b. generally luckier than others. c. concentrated in the wealthier nations. d. more likely to help others. 11. psychology is a scientific field of study focused on how humans thrive and flourish. 12. After moving to a new apartment, you find the street noise irritatingly loud, but after a while it no longer bothers you. This reaction illustrates the a. relative deprivation principle. b. adaptation-level phenomenon. c. feel-good, do-good phenomenon. d. catharsis principle.