I know they were both originally Psychology experiments but I feel the results of both the Shock Treatment experiment and the Stanford Prison Experiment spoke more on a social level than just psychological, hence the reason I studied it in both courses. Oddly enough, even though it is a psychological experiment; my sociology class was the one that went more in depth with the experiments than my psych classes did. The point of the Shock treatment experiment was to prove that German were more biologically inclined to follow orders than other nations (its a stupid premise but Psychology was still fairly new in the sciences and it was after WWII) and in the experiment they realized it was a purely social and psychological inclination for humans to follow authority figures not just a remote genetic factor.

It doesn't matter really cause sociology and psychology do tend to blend together due to common themes. I never held enough interest in sociology to go farther than the secondary introductory level my college had; my interest was far more in psychology and philosophy by that point. From the sound of it, I made the right choice cause god knows I hate statistics and ethnographs.