"And also the teachers then will see these kids - 90 per cent of the classrooms' kids are probably fine, and they will be able to see the ones that are not."
Boys of primary school age and girls in their mid-teens tended to be most affected, with the disruption to housing, schooling and sports often causing the most psychological damage.
Psychological Society president Frank O'Connor said children he saw, including his own 9-year-old son living in Christchurch, had been deeply affected by the quakes, but were getting more used to them.
"The young ones still burst into tears at significant aftershocks, but it takes a (magnitude) 4.5 now, whereas a year ago a 3 would set them off," Mr O'Connor said.
"I've asked around and it seems that kids have learned that the roar before significant shakes tells them to go somewhere safe and they 'do the turtle' willingly if things start to rattle.
"Most kids I know are pretty tired of shakes but don't seem to have the idea that they should stop - the fatalism of kids seems to help here."