Final answer:
This study conducted by Dr. Garcia is an example of psychological research. It falls under the field of health psychology, examining the relationship between psychological factors and physical health. Higher levels of optimism were found to be associated with fewer physical symptoms.
Step-by-step explanation:
This study conducted by Dr. Garcia is an example of a psychological research. Specifically, it falls under the field of health psychology, which examines the relationship between psychological factors and physical health. Dr. Garcia's study utilized a questionnaire to assess participants' optimism levels and physical symptoms, finding that higher levels of optimism were associated with fewer physical symptoms.