A psychologist administered an IQ test to Jonathan, age 12, and found his IQ was 30. Jonathan also exhibits poor motor development and poor communication skills. What is the most likely diagnosis?

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Quizplus · Accepted Answer

An IQ score of 30 falls under the category of severe mental retardation, which is characterized by significant developmental delays in both intellectual functioning (IQ) and adaptive behavior (motor and communication skills). Savant syndrome is not a likely diagnosis as it is typically accompanied by exceptional abilities in specific domains despite overall intellectual disabilities. Korsakoff's syndrome is a form of amnesia caused by alcoholism and is not related to developmental delay or IQ. While Jonathan's IQ score qualifies him for a diagnosis of moderate mental retardation, the presence of poor motor development and communication skills suggest a more severe diagnosis of severe mental retardation.

A Psychologist Administered an IQ Test to Jonathan, Age 12