[اردو] 85% کا قاعدہ

# The 85% Rule: Why Getting Everything Right (Or Wrong) Kills Learning [Urdu content summary] Psychologist Robert Björk's research shows learning is optimized at 85% accuracy. At 95%, content is too easy and the brain treats it as unimportant. At 55%, frustration kills engagement. At 85%, learners experience optimal challenge — difficult enough to require effort (which drives encoding), but achievable enough to maintain confidence. Research shows material learned at 85% is retained 50-70% longer than material at 95%. Amal's HLR adaptive system continuously adjusts difficulty to maintain each child in this optimal learning zone.