The more the merrier? PhD supervisors’ perspectives in engaging in co-supervision

Figures & data

Table 1. Supervisory arrangements and workload by disciplines.

	Environmental, Food and Biological Sciences	Health Sciences	Humanities and Social Sciences	Natural Sciences
Supervisory model
One-to-one	21%	16%	10%	43%
Few-to-one	62%	65%	84%	42%
Many-to-one	7%	6%	2%	6%
Many-to-many	5%	7%	2%	5%
Other	5%	6%	2%	5%
Frequency of engaging in co-supervision
Always or frequently	64%	43%	39%	38%
Occasionally	22%	16%	27%	31%
Rarely	5%	16%	18%	12%
Never	9%	26%	16%	20%
Typical size of a supervisory team
Two supervisors	41%	52%	54%	63%
Three supervisors	52%	45%	42%	43%
Four or more	7%	3%	4%	5%
Supervisory workload
Suitable	80%	77%	82%	81%
Too high	1%	10%	12%	6%
Too low	18%	7%	7%	13%