Key Beliefs for Targeted Interventions to Increase Physical Activity in Children: Analyzing Data from an Extended Version of the Theory of Planned Behaviour

Table 1

Hierarchical regression analyses for the prediction of behaviour.

Variables	Model 1	Model 2	Model 3	Final model
Behaviour	Standardised betas (𝛽)
Intention	0.25^∗∗∗	0.20^∗∗	0.22^∗∗	0.25^∗∗∗
Self-efficacy	0.14^∗∗	0.10	—	—
Facilitating factors	0.04	—	—	—
Descriptive norm		0.00	—	—
Self-identity		0.16^∗∗	0.16^∗	0.19^∗∗
BMI (children)			0.01	—
Gender			0.02	—
Involvement			0.02	—
Presence			0.01	—
Transportation			0.08	—
Parents’ level of PA			−0.00	—
𝑅^2	0.13	0.14	0.11	0.14

PA: physical activity.