Summary of survey scores (median of Likert score was subtracted)
Question	mean	Sum of positives (Ps)	Sum of negatives (Ns)	(Ps-Ns)/(Ps+Ns)	Count of positives (Pc)	Count of negatives (Nc)	(Pc-Nc)/(Pc+Nc)
1	-1.5	5	224	-0.96	5	127	-0.92
2	-1.12	5	169	-0.94	5	120	-0.92
3	-0.86	10	135	-0.86	10	101	-0.82
4	-0.74	15	123	-0.78	15	87	-0.71
5	0.15	55	33	0.25	55	26	0.36
6	-0.86	16	141	-0.8	16	92	-0.7

Pearson correlations of survey scores (and p-values)
	mean	(Ps-Ns)/(Ps+Ns)	(Pc-Nc)/(Pc+Nc)
mean	1 (0)	0.927 (0.008)	0.932 (0.007)
(Ps-Ns)/(Ps+Ns)	0.927 (0.008)	1 (0)	0.999 (0)
(Pc-Nc)/(Pc+Nc)	0.932 (0.007)	0.999 (0)	1 (0)

Kendall tau rank correlations of survey scores (and p-values)
	mean	(Ps-Ns)/(Ps+Ns)	(Pc-Nc)/(Pc+Nc)
mean	1 (0.006)	0.966 (0.007)	0.786 (0.032)
(Ps-Ns)/(Ps+Ns)	0.966 (0.007)	1 (0.003)	0.828 (0.022)
(Pc-Nc)/(Pc+Nc)	0.786 (0.032)	0.828 (0.022)	1 (0.006)