A Developmental Disability Is a Substantial Impairment of Mental or Physical

question 3

Multiple Choice

A developmental disability is a substantial impairment of mental or physical functioning that occurs before age ____ years and is of indefinite duration.

• A)12
• B)18
• C)19
• D)22

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Definitions:

Critical Value

A threshold value used in hypothesis testing to determine whether to reject the null hypothesis.

Null Hypothesis

In hypothesis testing, it's the presumption that no significant difference exists as a result of the experiment or intervention.

Significance

The likelihood that a result from data collected and analyzed is not due to chance. It’s often determined through the use of a p-value.

Null Hypothesis

A hypothesis that there is no significant difference or effect in a particular situation, used as a starting point for statistical testing.