Table 7.

HRA for the original TPB.

Variable	R 2	F	ΔR2	ΔF	Beta	Part r
Predicting behaviour
Block 1:	0.561	96.981 **
1. Intention					0.749 **
Block 2:	0.564	48.491 **	0.003	0.561
1. Intention					0.710 **	0.590
2. PBC					0.069	0.057
Block 3:	0.570	24.184 **	0.006	0.510
1. Intention					0.743 **	0.575
2. PBC					0.098	0.069
3. Attitude					0.007	0.005
4. Subjective Norm					−0.099	−0.076
Predicting intention
Block 1:	0.351	20.250 **
1. Attitude					0.309 *	0.259
2. Subjective Norm					0.363 *	0.303
Block 2:	0.401	16.536 **	0.051	0.6.266 *
1. Attitude					0.152	0.110
2. Subjective Norm					0.286 *	0.230
3. PBC					0.308 *	0.225

** Significant at the 0.001 level. * Significant at the 0.05 level.