Teachers giving positive feedback to students is a key part of keeping children from disadvantaged areas in school.
That was one of the findings of an ESRI review of the School Completion Programme which works with 36,000 students around the country.
It says that the programme has been largely successful in helping to keep children in school, despite funding cuts.
Author of the report Emer Smyth has said that teachers can identify students who need help far quicker than other services.
“Teachers play a very strong role in the school completion programme in identifying difficulties. It tends to be a whole school approach to identifying which children best benefit from help,” Ms Smyth said.
“You see where people have positive feedback and praise from their teachers that they do very well academically, but they are also more positive about themselves.
“On the other hand where they get caught up in a negative dynamic of being given out to and acting up in response that really can fuel disengagement from school.”