this is why you should heed my advice in my post #294. Since this is sociology-related issue.... you really should use sociology-related reference. since I'm not able to access to my university's database (technical difficulty) at this moment... here are what I found from quick search -
source
source 2
source 3
Jillio's definitions remain correct. That's why there is a field called sociology dedicated to this type of matter. On the surface, discrimination and prejudice may look the same thing. When you dissect it, it is not.
Perfect analogy - human twins look exactly the same but deep inside - they are different.