I am conducting research which involves measuring change over time in SDQ scores (parent/teacher/child) in children aged 7-11 years who are identified as at-risk of SEMH difficulties due to various demographic factors including poverty, maternal education and mental health history, persisting behaviour difficulties at school etc
I am wondering if there is any information out there about how much typically developing childrens (not at-risk) SDQ scores are likely to change over time, or if they remain relatively consistent say over the course of a year or 3 years or so... ? As comparison? Does anybody know of any cohort data I might look at or any studies already published with this type of information?
Thank you
Jenna