What is the typical IQ score indicating sub-average intellectual functioning?

The typical IQ score indicating sub-average intellectual functioning is defined as 70 or below. This benchmark is significant in the context of identifying intellectual disabilities. According to widely recognized criteria, an IQ score at or below this threshold suggests that an individual may experience challenges in cognitive functioning, which can affect their ability to learn and adapt in typical educational and social settings.

This standard is established by various psychological assessments, where a score of 70 or below indicates considerable deficits in intellectual functioning. Additionally, it is important to note that this score is often used in conjunction with adaptive behavior measures to diagnose intellectual disabilities, ensuring a comprehensive understanding of an individual's capabilities and support needs.

Scores above this range may still reflect some level of cognitive challenges but generally do not meet the clinical criteria for intellectual disabilities. Understanding these classifications is vital for professionals in the field to provide appropriate support and resources for individuals with intellectual disabilities.