Dual route model is the study that defines the changes in the mode of interpreting printed words to sound. Therefore dual route model is associated with the study of reading and spelling and the various assumptions that arise out of the investigation. These assumptions highlight the fact that the processing of the written language is always accomplished by two separate methods called the lexical and non-lexical routes. These two methods are interactive in nature. Reading and spelling in the lexical method always depends on the creation of word specific orthographic and phonological memory representation.
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