Parents' divorce hurts a child most in year one, then eases. This pattern is the:

1. The chronosystem is the pattern of environmental events and transitions over the life course. 2. It also covers changing socio-historical circumstances. 3. The negative effects of divorce often peak in the first year, and by two years family interaction is more stable. _Source: Wikipedia, "Ecological systems theory" (rev 1360652000), section "The five systems"_