Oregon Certified Nursing Assistant State Practice Exam

Which is the most common developmental disability?

1. Parkinson's disease

2. Intellectual disability

3. Muscular dystrophy

4. Cerebral palsy

The correct answer is: Intellectual disability

Intellectual disability is recognized as the most common developmental disability. This condition typically originates in childhood and encompasses a range of challenges related to cognitive functioning and adaptive behavior. Individuals with an intellectual disability may have difficulties with learning, problem-solving, communication, and social skills. These challenges can significantly impact their daily living and ability to participate fully in society. The prevalence of intellectual disability is higher compared to other conditions listed in the options. It is estimated that around 1-3% of the population may be affected, making it a significant concern in public health and education. Understanding and addressing the needs of individuals with intellectual disabilities is crucial for promoting their inclusion and improving their quality of life. While other options represent various disabilities, they do not match the overall prevalence of intellectual disability in the population. Parkinson's disease primarily affects movement and is more common in older adults. Muscular dystrophy involves specific muscular degeneration and is less common than intellectual disabilities. Cerebral palsy primarily affects movement and coordination due to brain injury or abnormal development, but it does not have the same prevalence as intellectual disabilities.