A child has an IQ of 50. How would their level of intellectual disability be classified?

NORCERT 8 Mains-2025

Applied Psychology

Easy

Appeared in: NORCERT 8 Mains-2025

Explanation

The question asks to classify the level of intellectual disability for a child with an IQ of 50.
According to standard classifications, such as those referenced in the DSM-5, Mild Intellectual Disability is associated with an IQ range of approximately 50 to 70.
Since the child's IQ is 50, it falls at the lower end of the range for Mild Intellectual Disability.
This group (Mild ID) constitutes the largest percentage (about 85%) of individuals with intellectual disabilities.

Option B: Moderate intellectual disability is incorrect because this level is typically associated with an IQ range of 35-49. An IQ of 50 is just above this range.
Option C: Severe intellectual disability is incorrect. This level corresponds to a much lower IQ range, typically between 20 and 34.
Option D: Profound intellectual disability is incorrect. This is the most severe level, associated with an IQ score below 20.

Visual 1: Chart - A bar chart or a number line visually representing the different levels of intellectual disability (Mild, Moderate, Severe, Profound) and their corresponding IQ score ranges. This helps to quickly see where an IQ of 50 falls.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Classification of Intellectual Disability by IQ score as background academic context rather than a clinical decision trigger.
While IQ scores are used for classification, modern diagnostic practices (like DSM-5) emphasize a holistic assessment that includes both intellectual functioning (IQ) and adaptive functioning (conceptual, social, and practical skills).
A nurse caring for a child with an IQ of 50 would focus on supporting their learning of academic skills (which may reach a 6th-grade level), promoting social skills, and encouraging independence in daily living tasks with appropriate support.
What if? If the question stated the child had an IQ of 48 but excellent adaptive skills for their age, the diagnosis would be more complex. The clinician would need to weigh both factors, as DSM-5 allows for clinical judgment when there's a discrepancy between IQ and adaptive functioning.

How to Approach the Question

First, identify the key piece of data in the question: the child's IQ is 50.
The question asks for the 'classification' of intellectual disability. This indicates you need to recall the standard categories and their corresponding IQ ranges.
Mentally (or by writing down) list the classifications: Mild, Moderate, Severe, and Profound.
Recall the approximate IQ score ranges for each level.
Compare the given IQ of 50 to these ranges. Determine which category it fits into.
Select the option that matches your determination. In this case, 50 falls within the 'Mild' category (50-70).

Concept Tested & Keywords

Concept Tested: Classification of Intellectual Disability by IQ score
Stem keywords: IQ of 50, intellectual disability, classified
Lead-in keywords: How
Clinical cues: Age/sex group narrows the expected diagnosis, intervention, or normal reference range.

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