Borderline Intellectual Functioning

A condition describing individuals with IQ scores roughly between 70 and 85—above the diagnostic threshold for intellectual disability (IQ below 70) but below the neurotypical range. Representing about 13.6% of the general population, BIF individuals typically have working memory constraints, slower processing speeds, difficulty with abstract reasoning, and a "jagged" cognitive profile with uneven strengths and weaknesses. The DSM-IV defined BIF numerically (IQ 70–85), but DSM-V removed the threshold and now requires adaptive-functioning assessment, leaving many BIF individuals without formal diagnosis or access to disability support. This creates a "gray area" where they struggle with mainstream education, employment, and digital content yet are excluded from specialised accommodations designed for intellectual disability.