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	0.51	101	21	0.66	98	16	0.72
2	0.76	132	14	0.81	120	11	0.83
3	0.77	129	9	0.87	110	8	0.86

Pearson correlations of survey scores (and p-values)
	mean	(Ps-Ns)/(Ps+Ns)	(Pc-Nc)/(Pc+Nc)
mean	1 (0)	0.97 (0.157)	0.985 (0.109)
(Ps-Ns)/(Ps+Ns)	0.97 (0.157)	1 (0)	0.997 (0.048)
(Pc-Nc)/(Pc+Nc)	0.985 (0.109)	0.997 (0.048)	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)	1 (0.333)
(Ps-Ns)/(Ps+Ns)	1 (0.333)	1 (0.333)	1 (0.333)
(Pc-Nc)/(Pc+Nc)	1 (0.333)	1 (0.333)	1 (0.333)