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	0.55	265	94	0.48	159	71	0.38
2	0.66	284	79	0.56	177	50	0.56
3	0.71	313	95	0.53	197	62	0.52
4	0.62	279	87	0.52	178	49	0.57

Pearson correlations of survey scores (and p-values)
	mean	(Ps-Ns)/(Ps+Ns)	(Pc-Nc)/(Pc+Nc)
mean	1 (0)	0.769 (0.231)	0.683 (0.317)
(Ps-Ns)/(Ps+Ns)	0.769 (0.231)	1 (0)	0.843 (0.157)
(Pc-Nc)/(Pc+Nc)	0.683 (0.317)	0.843 (0.157)	1 (0)

Kendall tau rank correlations of survey scores (and p-values)
	mean	(Ps-Ns)/(Ps+Ns)	(Pc-Nc)/(Pc+Nc)
mean	1 (0.083)	0.667 (0.333)	0 (1)
(Ps-Ns)/(Ps+Ns)	0.667 (0.333)	1 (0.083)	0.333 (0.75)
(Pc-Nc)/(Pc+Nc)	0 (1)	0.333 (0.75)	1 (0.083)