Albert Einstein and Winston Churchill were not dyslexic, according to Massey University College of Education pro-vice chancellor James Chapman.
Professor Chapman, who is also the president of the International Academy for Research in Learning Disabilities insists that if Einstein and Churchill were dyslexic they wouldn't have produced the scientific, historical or literary works.
According to a scientific view, dyslexia is a persistent literary learning difficulty.
Chapman said that those who believe that dyslexia is a spectrum disorder would certainly consider Churchill and Einstein dyslexic.
He says that like Einstein and Churchill, people were being incorrectly diagnosed with dyslexia because of the varying definitions.
The Dyslexia Foundation of New Zealand takes the spectrum disorder view.
Trustee chairman Guy Pope-Mayell said no-one would know whether the pair were dyslexic, because they were not tested.
He claims that literary deficit focus, which was used to burst the Einstein and Churchill dyslexic myth, is narrow-minded.
"Over the last 25 years, there's been a great focus on dyslexia in terms of its deficit, particularly literary deficit, but there's a groundswell now going into researching the talents, which dyslexics have," the NZPA quoted Pope-Mayell as saying.