A Guide to Integrating Expert Opinion and Fuzzy AHP When Generating Weights for Composite Indices

Table 5

Survey internal consistency calculations.

Expert	EF	UR	INF	INFRA	CPI	PI	RL	SD	KC	CO2E	Sum
1	7	4	4	6	7	7	6	4	4	5	54
2	7	6	7	6	7	6	7	7	7	7	67
3	6	5	5	5	6	7	6	4	5	3	52
4	6	7	7	6	7	7	6	5	6	5	62
5	7	7	7	7	7	7	7	6	7	4	66
Variance	0.24	1.36	1.6	0.4	0.16	0.16	0.24	1.36	1.36	1.76

Cronbach Alpha calculations: given 10 proxies, a sum of variance of 8.64, and a variance of total scores of 37.76, the Cronbach alpha score is 0.857.