Table 2.

Variable declaration.

Variable types	Variable names	Variable instructions	Variables identify
Dependent variable	The lack of family education in boarding primary schools.	/	LFE
Dependent variables	Teachers avoid educational risks;	Environment—Identity—psychological health;	TAR
	The priority in the schooling system of classic hard skills over soft skills	Relationship—language—psychological health;	HSP
	Capacity Limits of Policies and Regulations.	Law—culture—psychological health.	CLP
Control variables	Annual family income	CNY(W)	Income
	Annual family expenditure on education	CNY(W)	Expenditure
	Household type	1. Nuclear family (parents and children living together) 2. Intergenerational family (parents, grandparents, children living together) 3. Single-parent or reorganized family 4. Family with left-behind children	Type
	Debt problem	Y = 1;N = 0	Loan
	Sex	Y = 1;N = 0	Sex
	Age	Age at the time of interview	Age
	Grade (Student)	Grade at the time of interview	Grade
	Ethnic belonging	Ethnic minorities = 1; Han = 0	Ethnic
	Degree (Parents)	1. Graduate degree 2. College degree 3. Secondary school education 4. Primary school education or below	Degree