Dr. Keyes is a veterinarian who believes that people are happier if they own more pets. He hopes to fund a research project to demonstrate this so he can increase the number of pets adopted at the local animal shelter he runs. He is proposing a correlational study to examine this belief. Describe the predicted relationship between the variables of this study. Identify the population Dr. Keyes is studying. Provide an example of a valid operational definition of "happiness." Provide a specific example of how the "third variable problem" could affect this study. Explain why an experimental version of this study might not be ethical. Explain how people may face an approach-approach conflict when adopting a pet at an animal shelter.