The effects of self-esteem and parental phubbing on adolescent internet addiction and the moderating role of the classroom environment: a hierarchical linear model analysis

Table 2 The unconditional model and conditional models

Parameter	IA
Parameter	Model 1	Model 2	Model 3
Fixed effect
Student-level variables
Intercept (γ₀₀)	1.197***	1.195***	1.193***
Gender (γ₁₀)		0.277***	0.273***
Age (γ₂₀)		0.028	0.032
Self-esteem (γ₃₀)		−0.078***	−0.077***
Father phubbing (γ₄₀)		0.007	0.008
Mother phubbing (γ₅₀)		0.028**	0.028**
School-level variables
Learning burden (γ₀₁)			0.073*
Teacher-student relationship (γ₀₂)			-0.032
Interaction between student- and school-level variables
Learning burden × Self-esteem (γ₃₁)			−0.007*
Teacher-student relationship × Mother phubbing (γ₅₂)			−0.004**
Random effect variance component
U₀	0.269***	0.282***	0.214***
R	2.635	2.235	2.231
Deviance	7356.896	7127.746	7157.645

Notes: Only variables that have statistically significant interactions are listed
* p < 0.05, ** p < 0.01, *** p < 0.001

ISSN: 1471-244X