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Based on family systems theory, this study examines the longitudinal dynamic relationship between family functioning and externalizing problems among adolescents from low-income families. Using the Adolescent Family Growth and Recovery Assessment (APGRA) and the Strengths and Difficulties Questionnaire (SDQ), 468 adolescents from low-income families were tracked four times over a 2-years period, and the data were analyzed using a latent class scalar model (LCSM). The results showed that: (1) family functioning and externalizing problems among adolescents from low-income families were significantly negatively correlated; family functioning declined significantly over time (μ XS = −10.45, p 0.01), while externalizing problems increased significantly over time (μ γS = 9.90, p 0.05); (2) changes in family functioning and externalizing problems exhibited a bidirectional negative temporal association: levels of externalizing problems positively predicted subsequent changes in family functioning (γ Xγ = 0.45, p 0.001), changes in externalizing problems negatively predicted changes in family functioning (ξ Xγ = −0.37, p 0.01), and changes in family functioning negatively predicted changes in externalizing problems (ξ γX = −0.46, p 0.01), supporting the reciprocal effects model. In summary, there is a reciprocal dynamic relationship between family functioning and externalizing problems among adolescents from low-income families. This study provides longitudinal empirical evidence for the prevention and intervention of problem behaviors in this population.
Liang et al. (Fri,) studied this question.