grandparenting (where grandparents independently
raise the children, such as with left-behind children)
and incomplete grandparenting (where grandparents
and parents jointly raise the children, such as with
'weekend parents'); (2) participation time: Based on
the amount of time grandparents care for the children,
it is divided into dominant (when grandparents spend
more time than parents) and auxiliary (when
grandparents spend an equal amount of time as
parents); (3) care responsibility: This includes
whether grandparents take on full or partial
responsibility for raising the children.
Grandparenting is a common phenomenon both
domestically and internationally, but the
manifestation of grandparenting differs between
China and the West due to cultural differences (Lu et
al., 2020).
Lu Furong et al. conducted a study based on long-
term data of left-behind children both in China,
analyzing the multiple effects of grandparental care
on these children's physical, psychological, and social
development (Lu et al., 2020). The study delves into
the 'double-edged sword' effect of grandparenting on
left-behind children. However, the grandparenting
model, being lagging behind the natural growth
patterns of children and the social development
process, has actual adverse effects on children's
development. This model not only affects the
physical and psychological development of children,
but it may also lower the overall quality of future
generations, thereby restricting further societal
development and progress (Zhou, 2013). With the
increasing phenomenon of rural parents working
away from home, grandparental care has become an
unavoidable part of the growth process for many left-
behind children. Parents play an irreplaceable role in
children's development (Holdworth, 2004). For
children who lack parental companionship, especially
rural left-behind children, their physical and
psychological development faces more challenges,
which necessitates greater attention and support from
society.
The impact of grandparenting on left-behind
children is multifaceted, affecting not only their
mental health, behavior, academic performance, and
social adaptation, but also having long-term effects
on their personality and emotional development.
Pilkauskas et al. studied the characteristics of
'grandparent families' in the U.S. context, where
grandparents are the primary caregivers, and focused
on the relationship and dynamics between
grandparents, non-resident parents (non-custodial
parents), and children (Pilkauskas & Dunifon, 2016).
The study found that while the stable care provided
by grandparents somewhat mitigates the impact of
absent parents, grandparent families often faced low
socio-economic status and limited resources, which
may negatively affect children's cognitive and
emotional development. Additionally, it was noted
that children in grandparent families tend to perform
lower academically than those in traditional two-
parent households. Academic development is an
important task in the growth of children and
adolescents, and both society and families have
continuous expectations regarding their academic
achievements (Carmona-Halty et al., 2021).
As a crucial part of academic development,
learning engagement refers to the sustained positive
attitudes and motivation that individuals exhibit
during the learning process, and learning engagement
is positively correlated with academic performance
(Chen et al., 2021). Research shows that learning
engagement not only influences academic
achievement but is also related to physical and mental
health development (Chen et al., 2021). Therefore,
learning engagement holds significant importance in
children's development. Family relationships have a
notable impact on learning engagement. Research
results show that positive family relationships, such
as parental support and involvement, are positively
correlated with students' learning engagement, while
family conflict or lack of support may lead to a
decrease in learning engagement, further affecting
academic performance (Fute et al., 2024).
Previous studies indicate that the learning
engagement of rural left-behind children is influenced
by various factors, with parental expectations directly
or indirectly impacting the learning engagement of
left-behind children (Zhang et al., 2020). Therefore,
under the unique context of grandparenting in rural
China, it has a multi-dimensional impact on left-
behind children's physical and mental health, as well
as their academic development. Although
grandparents can to some extent fill the gap caused by
the absence of parents, the limitations of
grandparenting—due to their educational background,
economic conditions, and social support—also
present certain challenges. Consequently,
policymakers should pay attention to this
phenomenon and adopt measures to improve the
quality of grandparental care, thereby enhancing the
growth environment and development potential of
left-behind children.
1.3 Research Questions
Existing studies have explored the relationship
among intergenerational parenting models, left-