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	2.08	342	5	0.97	153	4	0.95
2	1.56	266	13	0.91	131	9	0.87
3	1.96	325	7	0.96	154	4	0.95

Pearson correlations of survey scores (and p-values)
	mean	(Ps-Ns)/(Ps+Ns)	(Pc-Nc)/(Pc+Nc)
mean	1 (0)	0.998 (0.042)	0.975 (0.141)
(Ps-Ns)/(Ps+Ns)	0.998 (0.042)	1 (0)	0.988 (0.099)
(Pc-Nc)/(Pc+Nc)	0.975 (0.141)	0.988 (0.099)	1 (0)

Kendall tau rank correlations of survey scores (and p-values)
	mean	(Ps-Ns)/(Ps+Ns)	(Pc-Nc)/(Pc+Nc)
mean	1 (0.333)	1 (0.333)	0.816 (0.221)
(Ps-Ns)/(Ps+Ns)	1 (0.333)	1 (0.333)	0.816 (0.221)
(Pc-Nc)/(Pc+Nc)	0.816 (0.221)	0.816 (0.221)	1 (0.157)