Table 3.

Discriminant validity matrix.

Variable	ALa	CIb	ERc	IRd	SEe	WSHIf
AL	0.650	—g	—	—	—	—
CI	0.420	0.623	—	—	—	—
ER	0.619	0.628	0.638	—	—	—
IR	0.637	0.454	0.655	0.754	—	—
SE	0.562	0.261	0.505	0.721	0.628	—
WSHI	0.688	0.324	0.654	0.735	0.628	0.724
AVEh	0.806	0.789	0.799	0.868	0.793	0.851

^aAL: Altruism.

^bCI: Community influence.

^cER: Extrinsic reward.

^dIR: Intrinsic reward.

^eSE: Self-efficacy.

^fWSHI: Willingness to share health information.

^gNot applicable.

^hAVE: Average variance extracted.