“…Research on biological antecedents or correlates of behaviors may help address this issue. For example, it has been found that shy, aggressive, and self-control behaviors are related to similar electrocortical, autonomic, and neuroendocrine processes among Asian and American children in middle childhood (e.g., Tardif, 2017; Xu, Farver, Yu, & Zhang, 2009). To enhance the work in this area, as indicated by Khan, Schmidt, and Chen (2017), theoretical models are needed to integrate biological, behavioral, and cultural processes of human behaviors in a developmental framework.…”