A 16 year old male is found to have a mental age of 9 years on I.Q. testing. He has –
**Core Concept**
Intellectual disability, formerly known as mental retardation, is a condition characterized by significant cognitive impairment, which affects an individual's ability to adapt to the demands of everyday life. The Intelligence Quotient (IQ) score is a widely used measure to assess cognitive functioning, and a significant discrepancy between chronological age and mental age can indicate intellectual disability.
**Why the Correct Answer is Right**
The given scenario describes a condition known as mild intellectual disability, where the individual's mental age is significantly lower than their chronological age. In this case, the mental age of 9 years is 7 years below the chronological age of 16 years. This significant discrepancy is a hallmark of intellectual disability. The Diagnostic and Statistical Manual of Mental Disorders (DSM-5) categorizes intellectual disabilities based on the level of support required by the individual, with mild intellectual disability being the least severe.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it does not accurately describe the condition described in the scenario. The correct term is intellectual disability, not mental retardation, which is an outdated term.
**Option B:** This option is incorrect as it suggests that the individual has a normal IQ score, which contradicts the scenario where the mental age is significantly lower than the chronological age.
**Option C:** This option is incorrect as it implies that the individual has a specific learning disability, such as dyslexia or dyscalculia, which is not supported by the information provided.
**Clinical Pearl / High-Yield Fact**
Intellectual disability is a heterogeneous condition, and its etiology can be attributed to various factors, including genetic disorders, environmental factors, and prenatal exposure to toxins. It is essential to recognize the significant impact of intellectual disability on an individual's quality of life and to provide appropriate support and accommodations to enable them to reach their full potential.
**Correct Answer: D. Intellectual Disability. Intellectual disability is a condition characterized by significant cognitive impairment, which affects an individual's ability to adapt to the demands of everyday life.**