| step 1 |  | step 2 |  | step 3 |  | step 4 |  |
---|---|---|---|---|---|---|---|---|
 | Beta | P-value | Beta | P-value | Beta | P-value | Beta | P-value |
background variables | ||||||||
Gender | 0.19 | < 0.01 | 0.15 | < 0.01 | 0.14 | < 0.01 | 0.12 | < 0.01 |
Residence | 0.06 | 0.08 | 0.02 | 0.56 | 0.00 | 0.89 | 0.03 | 0.25 |
SES mother | 0.07 | 0.04 | 0.07 | 0.06 | 0.07 | 0.04 | 0.05 | 0.13 |
SES father | 0.11 | < 0.01 | 0.08 | 0.02 | 0.06 | 0.06 | 0.07 | 0.02 |
perceived physical-environmental | ||||||||
Availability at home | Â | Â | 0.37 | < 0.01 | 0.26 | < 0.01 | 0.11 | < 0.01 |
Availability at school | Â | Â | 0.02 | 0.51 | 0.01 | 0.87 | -0.01 | 0.75 |
perceived socio-environmental | ||||||||
Modelling | Â | Â | Â | Â | 0.13 | < 0.01 | 0.08 | 0.02 |
Active encouragement | Â | Â | Â | Â | -0.05 | 0.30 | -0.12 | < 0.01 |
Demand family rule | Â | Â | Â | Â | 0.22 | < 0.01 | 0.22 | < 0.01 |
Allow family rule | Â | Â | Â | Â | -0.01 | 0.87 | -0.03 | 0.44 |
personal | ||||||||
Knowledge | Â | Â | Â | Â | Â | Â | 0.10 | < 0.01 |
Attitudes | Â | Â | Â | Â | Â | Â | 0.00 | 0.92 |
Liking | Â | Â | Â | Â | Â | Â | 0.19 | < 0.01 |
Self-efficacy | Â | Â | Â | Â | Â | Â | 0.10 | < 0.01 |
Preferences | Â | Â | Â | Â | Â | Â | 0.22 | < 0.01 |
Perceived barriers | Â | Â | Â | Â | Â | Â | -0.02 | 0.46 |
adjusted R2 | 0.062 | Â | 0.192 | Â | 0.240 | Â | 0.394 | Â |
R2 change | 0.067 | < 0.01 | 0.131 | < 0.01 | 0.051 | < 0.01 | 0.157 | < 0.01 |