So basically I'm a little confused as to whether a letter I'm going to ask for is science/nonscience letter. The prof I was considering is listed in the psych faculty. She's my PI and it's a neuroscience lab, there's really no cognitive psych component. Here's where it gets tricky. I get neuroscience credit from her for research (though this could change to psych if I desired). Also, I am about to take her class which is crosslisted as either psychology or neuroscience. Would a letter from her fulfill a nonscience requirement?