Keesha's father died unexpectedly in an accident when she was four years old. this incident will likely affect keesha's development and is an example of a:

Keesha’s development will likely be affected in this scenario by which this is an example of a non-normative life event. A non-normative life event is where events occur in an individual that are unexpectedly or that he or she doesn’t expect it to occur of which Keesha had experienced. Another example of this is by winning a lottery or having an unexpected career opportunity.