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	0.56	101	15	0.74	98	14	0.75
2	0.78	132	11	0.85	120	10	0.85
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)	0.983 (0.117)	0.993 (0.078)
(Ps-Ns)/(Ps+Ns)	0.983 (0.117)	1 (0)	0.998 (0.039)
(Pc-Nc)/(Pc+Nc)	0.993 (0.078)	0.998 (0.039)	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)	0.333 (1)	0.333 (1)
(Ps-Ns)/(Ps+Ns)	0.333 (1)	1 (0.333)	1 (0.333)
(Pc-Nc)/(Pc+Nc)	0.333 (1)	1 (0.333)	1 (0.333)