**Question:** IQ in moderate mental retardation -

A. 70-80
B. 50-70
C. 30-50
D. 80-90

**Core Concept:** Intelligence quotient (IQ) is a quantitative measure of an individual's cognitive abilities. It is a standardized score that compares an individual's mental age to their chronological age. Mental retardation refers to a significant decline in intellectual functioning and adaptive skills compared to age peers. Moderate mental retardation (MMR) is characterized by IQ scores between 50-70, which indicates significant impairment in cognitive abilities and adaptive skills.

**Why the Correct Answer is Right:** IQ in moderate mental retardation falls within the range of 50-70. This indicates a significant impairment in intellectual functioning and adaptive skills compared to age-matched peers. People with moderate mental retardation typically struggle with daily living skills, social interaction, and academic performance.

**Why Each Wrong Option is Incorrect:**

A. 70-80 (True for mild mental retardation) - This option is incorrect as it represents a higher IQ range for mild mental retardation, not moderate.
B. 50-70 (Correct for moderate mental retardation) - This option is correct as it represents the IQ range for moderate mental retardation.
C. 30-50 (False for moderate mental retardation) - This option is incorrect as it represents a lower IQ range, which is characteristic of severe mental retardation.
D. 80-90 (True for above average intelligence) - This option is incorrect as it represents a higher IQ range, which is not characteristic of moderate mental retardation.

**Clinical Pearl:** Mental retardation is a spectrum disorder, with different subcategories based on the severity of cognitive impairment. Moderate mental retardation (IQ 50-70) is one of the subcategories, which significantly impacts an individual's ability to function independently and adapt to daily life challenges.

**Correct Answer:** IQ in moderate mental retardation falls within the range of 50-70. This represents a significant decline in intellectual functioning and adaptive skills compared to age-matched peers, making it essential for healthcare professionals to tailor interventions and support systems accordingly.