Table 2.

Draft authorship matrix

	Ideas	Work	Writing	Stewardship	Net contribution/responsibility (%)
	0.2 (%)	0.3 (%)	0.35 (%)	0.15 (%)
Johnson (graduate student)	30	80	60	10	53
Norman (technician)	20	50	10	15	25
Jones (post-doc)	40	60	70	20	54
Fonda (associate professor)	40	0	25	40	23
Peter (professor)	60	30	60	70	53
Balance check	190	220	225	155	206