Estimates of the prevalence rates of dual diagnosis (co-occurrence of behavioural or psychiatric disorders in people with developmental disabilities) range from

A) 14-39%.
B) 50-60%.
C) 70-80%.
D) 5-12%.
E) 20-25%.

Dual Diagnosis

The co-occurrence of serious behavioural or psychiatric disorders in people with developmental disabilities.

Behavioural Disorders

A range of disorders characterized by disruptive behaviors and emotional problems that last for at least six months.

Developmental Disabilities

A group of conditions due to an impairment in physical, learning, language, or behavior areas, appearing during the development period.