I listened to 90% of the intro to psychology course offered through MIT's open courses program. It was very interesting, but without doing the coursework, not exceptionally educational.
The instructor of the course was a very good lecturer but the complete course would have offered tutorial sections where the reading would be more thoroughly discussed than it is in the lectures. The big ideas presented in the lectures were geared toward modeling a proper scientific approach to the study of psychology through tests. (How do we develop theories and test with accuracy and replicability when studying behavior, the mind, the brain, etc.?) For a student considering pursuing psychology in college, this would be beneficial.
I would recommend the student should try to follow along with at least some of the reading to get the most out of the course. He or she wouldn't have to do all the reading or all the course, which is a major bonus to this type of program. You can sample without spending money or signing up for a time commitment.