Hi, welcome to the site. Has your tutor recommended a handbook for you to research these criteria?
If it helps
page 410 of this EYE handbook defines Early Intervention as an 'approach that seeks to offer extra help and support to a family before the child starts to lag behind in development or experience neglect or abuse. Early intervention is about working co-cooperatively with parents and carers, giving them a chance to make choices about which services they need.
You may find these links useful
http://www.cpag.org.uk/
https://www.childrenssociety.org.uk/.../child-poverty
https://www.gov.uk/government/groups...d-poverty-unit
https://www.jrf.org.uk/report/we-can...iAAEgK82fD_BwE
http://www.ocr.org.uk/Images/69517-l...sadvantage.pdf
Best wishes