Left-handed pupils do less well in tests than their right-handed peers.
Researchers from Bristol University based their findings on national curriculum test results (Sats) and IQ tests for over 10,000 children.
The study found the gap between left and right-handed pupils did not
lessen with age - the gap was still evident in Key Stage 3 tests sat at
14 years.
The study also identified slow development in "mixed-handed" pupils, where neither hand is dominant.
This phenomenon was found to be a particular problem in girls.
Full article on the BBC news website
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