Final answer:
Parents typically experience shock and overwhelm as an initial reaction to learning that their child has a disability, although reactions can change over time.
Step-by-step explanation:
The student's question relates to the initial reactions of parents upon learning that their child has a disability. Research has shown that these initial reactions are generally shocked and overwhelmed. This reaction can stem from a variety of emotions including concern for the child's future, uncertainty about how to proceed with care and support, and the adjustment to the idea of having a child with a disability. It is important to note that these reactions can evolve over time, and parents may eventually adopt a more accepting and positive outlook.