Table 6.

Hierarchical regression analyses for the Theory of Planned Behavior constructs and weight gain, physical activity, and nutrition intentions

Variables	β	R2	Model F	ΔF	Model p value	Variable t	Variable p value
Weight gain (n = 186)
Block 1		0.22	26.06		<0.001
Attitude	0.024					1.81	0.072
Subjective norm	0.512					6.26	<0.001
Block 2		0.23	18.05	8.01	<0.001
Attitude	0.023					1.73	0.085
Subjective norm	0.496					6.01	<0.001
PBC	0.047					1.35	0.180
Physical Activity (n = 185)
Block 1		0.15	16.34		<0.001
Attitude	0.053					3.51	<0.001
Subjective norm	0.331					3.33	0.001
Block 2		0.39	39.05	22.71	<0.001
Attitude	0.020					1.48	0.140
Subjective Norm	0.139					1.59	0.113
PBC	0.259					8.47	<0.001
Nutrition (n = 186)
Block 1		0.16	17.8		<0.001
Attitude	0.025					2.63	0.009
Subjective norm	0.302					4.03	<0.001
Block 2		0.29	25.32	7.52	<0.001
Attitude	0.019					2.13	0.034
Subjective norm	0.164					2.25	0.025
PBC	0.158					5.83	<0.001

Bold values are statistically significant (p < 0.05)