The most frequently identified cause of intellectual developmental disorder is ______.
A) fetal alcohol syndrome
B) Down syndrome
C) prenatal malnutrition
D) fragile X syndrome

Question

Quizplus · Accepted Answer

Down syndrome is the most frequently identified cause of intellectual developmental disorder, primarily because it is a genetic condition that is well-documented and easily identifiable through genetic testing.

The Most Frequently Identified Cause of Intellectual Developmental Disorder Is