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	-0.8	17	131.5	-0.77	24	119	-0.66
2	-0.99	14.5	156	-0.83	19	124	-0.73
3	-0.61	18	105.5	-0.71	26	117	-0.64
4	-0.35	32.5	82	-0.43	45	98	-0.37
5	-0.23	44.5	78	-0.27	59	84	-0.17
6	0.66	113	18.5	0.72	118	25	0.65
7	-0.37	42	94.5	-0.38	52	91	-0.27

Pearson correlations of survey scores (and p-values)
	mean	(Ps-Ns)/(Ps+Ns)	(Pc-Nc)/(Pc+Nc)
mean	1 (0)	0.986 (0)	0.985 (0)
(Ps-Ns)/(Ps+Ns)	0.986 (0)	1 (0)	0.998 (0)
(Pc-Nc)/(Pc+Nc)	0.985 (0)	0.998 (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)	0.905 (0.003)	0.905 (0.003)
(Ps-Ns)/(Ps+Ns)	0.905 (0.003)	1 (0)	1 (0)
(Pc-Nc)/(Pc+Nc)	0.905 (0.003)	1 (0)	1 (0)