Adam Magaña

Hello, everyone! My name is Adam. Just joined because I've always been a sucker for science and never even considered joining a forum. Currently I have the following question on my mind: A coworker of mine swears he is experiencing "paranormal activity" in his new home. I'm skeptical to say the least. However, I don't want to bludgeon him with my skepticism every time he talks with me about it. I want to be reasonably skeptical but also maintain a good scientific mindset about it. So my question is this: are there any good, reliable scientific studies into the paranormal? And if so, what were their conclusions? I did some Googling and found mostly non-scientific results and mumbo-jumbo. I'd like to get a good scientific basis on the topic so I don't feel ignorant and overzealous in my initial skepticism. Thanks for the help!