does this university offer MBA in organizational psychology?

well organizational psychology is not a specialization for MBA, rather it a part of HRM perspective. SO you can jon MBA in HRM. for more information on courses offered, check out http://www.roosevelt.edu/Business/Programs.aspx

sir/mam, I'm pursuing MBA HR specialization..now I'm in 4th sem.I'm interested in psychology PhD. so plz let me know which university is offering. and I also have a doubt that is it helpful to become HRD.If any new courses about HRD. plz tell me.

this is not a field in MBA you can do MBA in HR, Finance, Marketing , HM,