What Is a Developmental Disability? - Definition & Statistics


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What factor distinguishes developmental disabilities from other types of disabilities?

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1. What should a parent of a child who does NOT achieve key developmental milestones by a reasonable age do?

2. Which one of the conditions below is NOT considered a developmental disability?

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About This Quiz & Worksheet

Developmental disabilities are significantly different from other kinds of disabilities. You can use these assessments to test your knowledge of this subject and different topics, such as the prevalence of these disabilities in the United States and the correlation between developmental milestones and developmental disabilities.

Quiz & Worksheet Goals

Use this quiz and worksheet to examine:

  • The frequency of developmental disabilities in the U.S.
  • Various developmental disabilities
  • Actions to take when development milestones are not met
  • Differences between developmental disabilities and other kinds of disabilities

Skills Practiced

You can practice the following skills while also learning about developmental disabilities:

  • Reading comprehension - ensure that you draw the most important information from the related lesson on developmental disabilities
  • Interpreting information - verify that you can read information about the increase of developmental disabilities in the U.S.
  • Knowledge application - use your knowledge to answer questions about developmental milestones

Additional Learning

To learn more about developmental disabilities, have a look at the complementary lesson titled What is a Developmental Disability? - Definition & Statistics. In this lesson, you will:

  • Define developmental disabilities
  • Explore the purpose of developmental milestones and review examples of them
  • Identify different developmental disability types
  • Investigate the causes of developmental disabilities
  • Examine statistics on the prevalence of developmental disabilities