Which of the Following Is True of the Prevalence of Intellectual

Multiple Choice

Which of the following is true of the prevalence of intellectual disability (ID) ?

A) Since a person's IQ is stable, someone diagnosed with ID in childhood always continues to qualify for a diagnosis later in life.
B) The prevalence of ID is 2.2% because that is the percentage of individuals who fall 2 standard deviations below the mean on the normal curve of IQ scores.
C) Screening adults for ID results in a much lower prevalence rate than screening school-age children.
D) ID occurs in equal rates in males and females.