Well, officially it's Industrial / Organisational psych. This
covers a whole lot of stuff including what you've mentioned.
Personally, I take raised morale to be a result rather than a
cause, though - I don't go for that rah-rah stuff.
My main area originally was recruitment and selection, including
all of the psych testing and interviewing involved, and this led to
organisational structure design later. I later went over to program
evaluation, which in turn led to human factors work, mainly
involving HCI (Human Computer Interaction), as well as things like
situational awareness and cognitive performance in stressful or
emergency conditions.
