“…EC is based on executive attention capacities and frequently is assessed with measures of attentional skills, persistence, and the ability to voluntarily inhibit or activate behavior (e.g., Kochanska, Murray, & Harlan, 2000;Rothbart, Ahadi, Hersey, & Fisher, 2001;Rothbart & Bates, 1998). The processes that EC includes (attentional and behavior control and persistence) are believed to be fundamental to children's emotion-related regulation and to modulate emotional reactivity and emotional behaviors such as aggression (Derryberry & Rothbart, 1997;Rothbart & Bates, 1998). Although children's EC appears to have a heritable component (Goldsmith et al, 1999;Rothbart & Bates, 1998), there is also evidence of environmental influences on EC.…”