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	-1.51	2	242	-0.98	2	145	-0.97
2	-1.72	2	276	-0.99	2	153	-0.97
3	-1.32	2	212	-0.98	2	142	-0.97
4	-1.14	3	185	-0.97	3	124	-0.95
5	-1.01	7	167	-0.92	7	119	-0.89
6	0.38	79	19	0.61	79	17	0.65
7	-0.94	14	163	-0.84	14	109	-0.77

Pearson correlations of survey scores (and p-values)
	mean	(Ps-Ns)/(Ps+Ns)	(Pc-Nc)/(Pc+Nc)
mean	1 (0)	0.939 (0.002)	0.945 (0.001)
(Ps-Ns)/(Ps+Ns)	0.939 (0.002)	1 (0)	0.999 (0)
(Pc-Nc)/(Pc+Nc)	0.945 (0.001)	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)	0.976 (0.002)	0.926 (0.005)
(Ps-Ns)/(Ps+Ns)	0.976 (0.002)	1 (0.002)	0.949 (0.004)
(Pc-Nc)/(Pc+Nc)	0.926 (0.005)	0.949 (0.004)	1 (0.003)