Table 1. Hypotheses posed in this paper.

Hypothesis	Proposed relationship
H1	There is a positive relationship between interdisciplinary collaboration and:
	(a) proportion of female members
	(b) the interdisciplinarity of the group
	(c) There is a negative relationship between interdisciplinary collaboration and the diversity of international membership
H2	(a) There is a positive correlation between interdisciplinary collaboration in a group and number of publications.
	(b) There is an inverted-U relationship between interdisciplinary collaboration in a group and impact as measured by the median number of citations.
	(c) There is a positive correlation between interdisciplinary collaboration in a group and personal satisfaction
	(d) There is a positive correlation between interdisciplinary collaboration in a group and perceived effectiveness