Moderate mental retardation corresponds to which level of intellectual functioning?

• A. Mild impairment
• B. Severe impairment
• C. Profound impairment
• D. Moderate impairment

Answer: (D)

Moderate impairment is the middle level on the commonly used scale of intellectual functioning. It signals notable but not extreme limitations in both intellectual abilities and daily living skills. In practical terms, individuals in this range typically have an IQ roughly in the mid-30s to the 40s and will need ongoing support to manage everyday tasks. They can often learn basic academic and practical skills with structured instruction, communicate in everyday situations, and participate in work or community activities with supervision. The other levels represent less impairment (mild) or more severe impairment (severe or profound), which is why moderate impairment is the best fit for moderate mental retardation.