Mixed feelings on this. I've taken Extension courses from UCSC and from Stanford, and was never under any illusion that the teachers were affiliated with the schools (although one was). For all of them, they tell you in the course description who the teacher is. There's always a course evaluation at the end.
If Caltech isn't monitoring the content of their courses and the student evals, then they're being negligent, for sure. But I don't see this as a systemic problem, other than maybe lack of disclosure.
If Caltech isn't monitoring the content of their courses and the student evals, then they're being negligent, for sure. But I don't see this as a systemic problem, other than maybe lack of disclosure.