Definitions of social environment on the Web:
The social environment or social context is a group of identical or similar social positions and social roles.
Social enviroment of an individual is the culture that he or she was educated and/or lives in, and the people and institutions with whom the person interacts.
For example, there are artistic enviroments (artists in a given area), educational enviroments (members of a university), political enviroments (members of a political party), etc. ...
Wikipedia
I can't really find any definitions of psych. env., can you elaborate on what you're after? Like, what topic is this under? Which sub-topic does it concern? Because I have never done this before.