Table 4. Various measurements of reviewer agreement in three studies involving manuscript review at medical journals.

Study	Journal (# of manuscripts)	Overall agreement	Positive agreement	Negative agreement	Cohen's Kappa	Fleiss' Kappa	Gwet's Kappa
Rothwell & Martyn 2000	Journal A (179)	57%	65%	45%	0.10	0.09	0.18
	Journal B (116)	71%	77%	60%	0.37	0.37	0.46
Yadollahie et al. 2004	Iranian J Med Sciences (28)	46%	44%	48%	−0.07	−0.07	0.12
Baethge et al. 2012	Dtsch Arztebl Int (206)	75%	84%	31%	0.16	0.15	0.63

Positive agreement denotes agreement regarding acceptance, negative agreement refers to agreement regarding rejection of a manuscript.