. 2025 Oct 22;5(4):100296. doi: 10.1016/j.ynirp.2025.100296

Table 3.

Effect of converting negative ICCs to 0 on measures of central tendency and variability of test-retest reliability. Bold and italics indicate summary statistics whose value changed when negative ICCs were converted to 0.

Scan Duration	# of Negative ICCs	Original ICC Summary Statistics					ICC Summary Statistics After Converting Negatives to 0
Scan Duration	# of Negative ICCs	Mean	SD	Median	Q1	Q3	Mean	SD	Median	Q1	Q3
3	9605	0.17	0.30	0.19	−0.03	0.39	*0.23*	*0.22*	0.19	*0.00*	0.39
4	7648	0.22	0.30	0.24	0.02	0.44	*0.27*	*0.23*	0.24	0.02	0.44
5	6348	0.26	0.30	0.28	0.06	0.48	*0.29*	*0.24*	0.28	0.06	0.48
6	5520	0.29	0.29	0.32	0.10	0.51	*0.32*	*0.24*	0.32	0.10	0.51
7	5363	0.30	0.29	0.32	0.11	0.51	*0.33*	*0.24*	0.32	0.11	0.51
8	4725	0.32	0.29	0.36	0.14	0.54	*0.35*	*0.25*	0.36	0.14	0.54
9	4211	0.35	0.29	0.38	0.16	0.57	*0.37*	*0.25*	0.38	0.16	0.57
10	3742	0.37	0.29	0.40	0.19	0.59	*0.39*	*0.25*	0.40	0.19	0.59
11	3384	0.39	0.29	0.43	0.21	0.61	*0.41*	*0.25*	0.43	0.21	0.61
12	3098	0.40	0.28	0.44	0.22	0.62	*0.42*	*0.25*	0.44	0.22	0.62