I found these sources using the UWMC library database. I found it was quite difficult finding any information that scholars have written about my topic on how wealth affects our minds. I learned that I can greatly reduce the amount of articles in the search by narrowing down the subject title in which they are categorized.
When I was searching for my sources, I found that using .org in the search bar helped me find a good source for my paper. PBS seems credible to me because they have been making educational videos for over 20 years. The first website I found had many biases in it, but I will still use this source for a point of view in my paper. If I can find that their information is in fact credible, I will use this as a side in my research paper. It seems like their are many opinionated articles on my subject and few studies that have actually tested the difference between affluent people and ones who are not.