Table 3.

Discriminant validity.

	ITIa	CEb	ICc	EOUd	PSYe	IAYf	DCg
ITI	0.7938h	—i	—	—	—	—	—
CE	0.3484	0.8097h	—	—	—	—	—
IC	0.3826	0.2979	0.7881h	—	—	—	—
EOU	0.3477	0.4166	0.2576	0.8089h	—	—	—
PSY	0.3192	0.3642	0.2057	0.3835	0.7969h	—	—
IAY	0.2415	0.289	0.4002	0.1852	0.0593	0.7588h	—
DC	0.1245	0.2369	0.4039	0.1788	0.0991	0.3697	0.7463h

^aITI: intention to interact.

^bCE: convenience of Web-based health communities.

^cIC: inconvenience of physical health facilitates.

^dEOU: ease of use.

^ePSY: perceived synchronicity.

^fIAY: inaccessibility.

^gDC: discontinuity.

^hThe square roots of average variances extracted.

ⁱ—: not applicable.