Both the origin and composition of groups have strong implications for
the substance, the style of interaction, and the locus of control within
research activities. Researchers who collaborate with groups may work with:
(1) pre-existing groups which take on research tasks as a group, (2) preexisting
groups which facilitate the participation of a sub-group of members
as a special optional activity, or (3) groups created by and for researchers for
the explicit purpose of research collaboration