Table S3.7: Predicting the prevalence of categories related to 'thoroughness'. Models exclude reviews without mentions of a content category. Table shows coefficients from mixed effects linear regression models. Standard errors in parentheses.

	Materials and Methods	Presentation and Reporting	Results and Discussion	Importance and Relevance
(Intercept)	48.49 (0.93)***	39.93 (0.77)***	23.17 (0.63)***	20.69 (0.71)***
JIF group: 2 (ref.: JIF group: 1)	0.06 (1.30)	-3.26 (1.08)**	-1.16 (0.86)	-3.36 (0.99)***
JIF group: 3	0.48 (1.38)	-2.44 (1.13)*	-0.63 (0.90)	-3.47 (1.05)***
JIF group: 4	1.19 (1.39)	-4.54 (1.14)***	-0.47 (0.91)	-4.45 (1.06)***
JIF group: 5	1.72 (1.34)	-4.48 (1.10)***	-1.68 (0.88)	-5.24 (1.01)***
JIF group: 6	3.10 (1.37)*	-5.83 (1.13)***	-3.33 (0.90)***	-5.81 (1.04)***
JIF group: 7	2.92 (1.36)*	-6.15 (1.11)***	-2.18 (0.88)*	-6.37 (1.02)***
JIF group: 8	3.22 (1.41)*	-7.90 (1.15)***	-2.02 (0.90)*	-6.02 (1.04)***
JIF group: 9	4.26 (1.48)**	-8.68 (1.18)***	-2.25 (0.93)*	-6.12 (1.08)***
JIF group: 10	5.35 (1.43)***	-11.38 (1.17)***	-3.27 (0.92)***	-6.58 (1.06)***
AIC	80827.65	76181.64	61421.28	55556.82
BIC	80920.12	76273.59	61511.33	55645.33
Log Likelihood	-40400.83	-38077.82	-30697.64	-27765.41
N	9070	8717	7528	6693
N groups: Reviewer ID	8446	8139	7073	6350
N groups: Journal ID	1582	1582	1496	1475
***p < 0.001; **p < 0.01; *p < 0.05