Final answer:
Positive psychology investigates topics such as happiness, well-being, resilience, and optimism.
Step-by-step explanation:
Positive psychology is a movement within psychology that focuses on studying topics such as happiness, well-being, resilience, and optimism. It seeks to understand and promote positive emotions and experiences in individuals. For example, one area of study in positive psychology is the health benefits of optimism, which has been found to improve physical and mental well-being.