The interview process was casual and consisted of grad students asking undergrad students why they wanted to get involved in the research. This was a non-paying research internship in the psychology department.

There is only one round interview, which is directly talking to the lab chair. Very friendly chat. There are two main topics. First is about personal experience, like name, background, interests. Then the professor asks some questions about skills related to the research subjects. For my case, if your previous work is sufficient, there will not be coding qustions.