Widely recommended socioemotional developmental surveillance methods include monitoring and development screening techniques. Currently, very little research has compared the effectiveness of monitoring and screening together, and existing research primarily focuses on the relationship between surveillance techniques and referrals or receipt of early intervention (EI). This study investigates the relationship between monitoring and screening and mental health treatment receipt in 3–5 year olds. To read the full article, log in using your SSSFT NHS OpenAthens details.