TABLE 3.

Reproducibility measures.

Type of Comparison	Coefficient	Relative to unsuppressed water			Relative to Creatine
		Glutamate	GSH	GABA	Glutamate	GSH	GABA
Within Day 1	ICC	0.72	0.66	0.49	0.44	0.33	–0.27
(Scan 1 vs. Scan 2)	CoV (%)	5.91%	7.81%	11.52%	3.56%	8.99%	13.11%
Within Day 2	ICC	0.32	0.20	0.52	0.90	0.59	0.72
(Scan 1 vs. Scan 2)	CoV (%)	5.83%	10.69%	11.42%	2.22%	6.67%	8.32%
Between-session	ICC	0.87	0.72	0.82	0.85	0.67	0.69
(Scan 1)	CoV (%)	2.79%	6.66%	7.35%	2.82%	5.69%	8.89%
Between-session	ICC	0.68	0.69	0.65	0.51	0.13	–0.35
(Scan 2)	CoV (%)	6.40%	9.84%	10.97%	4.00%	10.13%	9.91%
Overall (4 scans)	ICC	0.75	0.68	0.77	0.86	0.59	0.66
	CoV (%)	6.41%	10.82%	11.69%	3.00%	8.38%	8.06%