“…This method provides a great advantage for studying within-person relations; by comparing adolescents to themselves, it eliminates the influence of between-person factors (Y. Li, Ye, & Zhou, 2023) like genetics, environment, and individual traits. To be specific, after controlling for the interference of between-person effects, the true temporal relations between variables can be identified at the withinperson level, which can avoid spurious associations (Sorjonen et al, 2023) and provide a more accurate theoretical account of the dynamic changes over time in comorbidity treatment for adolescents.…”