“…In our framework, assertion, self-control, and cooperation, respectively, refer to behaviors that initiate social interactions or express opinions, hold back impulsive emotions/ideas/actions, and coordinate or collaborate with others (Gresham, 2001 ). In the existing researches, another scale, named the Interaction Rating Scale (IRS) and its Chinese version (IRS-C), have also been used to observe parent–child interactions and evaluate children’s social skills in both Japan and China (Anme et al, 2010 ; Huang et al, 2022 ; Sugisawa et al, 2010 ), in which key concepts in subdomains are consistent with the descriptions of assertion, self-control, and cooperation in the SSS. Moreover, previous studies also demonstrated that assertion, self-control, and cooperation are related to each other and have long-term effects on child social development (Dunfield et al, 2011 ; Gülseven et al, 2021 ).…”