Table 6.

Polychoric correlation matrix for the items of CPHE-s.

CPHE-s	Item 1	Item 2	Item 3	Item 4	Item 5
Item 1	–	0.94	0.79	0.75	0.72
Item 2		–	0.80	0.81	0.79
Item 3			–	0.93	0.90
Item 4				–	0.98
Item 5					–