<Tr> <Th> Causes </Th> <Td> Genetic and environmental factors </Td> </Tr> <Tr> <Th> Risk factors </Th> <Td> Family history, attention deficit hyperactivity disorder </Td> </Tr> <Tr> <Th> Diagnostic method </Th> <Td> Series memory, spelling, vision, and reading test </Td> </Tr> <Tr> <Th> Similar conditions </Th> <Td> Hearing or vision problems, insufficient teaching </Td> </Tr>

Who developed the theory of dyslexia and remedial reading techniques