A child's development regression may be caused by which of the following factors?

A child's developmental regression can indeed be associated with transitions. Transitions are significant changes in a child's environment or routine, such as moving to a new home, starting school, or experiencing changes in family dynamics, like a divorce or the arrival of a new sibling. These events can create feelings of insecurity or anxiety, which may lead the child to revert to earlier behaviors they have outgrown, like thumb-sucking or bedwetting.

In the context of child development, these regressions are often temporary and a normal part of adapting to new situations. It's an indication of the child needing extra support and reassurance as they navigate the changes. Recognizing that transitions can be a catalyst for regression emphasizes the importance of providing a stable, nurturing environment during such periods.