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	-0.92	10	157	-0.88	10	100	-0.82
2	-0.54	11	97	-0.8	11	63	-0.7
3	-0.64	7	108	-0.88	7	74	-0.83
4	-0.66	7	112	-0.88	7	69	-0.82
5	-1.17	8	194	-0.92	8	113	-0.87
6	-0.95	6	157	-0.93	6	107	-0.89
7	-0.96	6	158	-0.93	6	101	-0.89

Pearson correlations of survey scores (and p-values)
	mean	(Ps-Ns)/(Ps+Ns)	(Pc-Nc)/(Pc+Nc)
mean	1 (0)	0.796 (0.032)	0.756 (0.049)
(Ps-Ns)/(Ps+Ns)	0.796 (0.032)	1 (0)	0.996 (0)
(Pc-Nc)/(Pc+Nc)	0.756 (0.049)	0.996 (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)	0.688 (0.039)	0.551 (0.091)
(Ps-Ns)/(Ps+Ns)	0.688 (0.039)	1 (0.004)	0.946 (0.006)
(Pc-Nc)/(Pc+Nc)	0.551 (0.091)	0.946 (0.006)	1 (0.003)