Children with dyslexia exhibit difficulties in learning or using specific academic skills including reading, writing, or arithmetic which are usually the foundation for all academic learning. They may have difficulties in processing the sound and written form of language, problems in reading comprehension and reduced reading experience leading to impede growth of vocabulary and overall knowledge. These reading difficulties are not better explained by intellectual disabilities, language disorder, attention deficit/ hyperactivity disorder, sensory impairment or academic underachievement due to inadequate learning experience. In fact, children with dyslexia usually display unexpected discrepancy between their intelligence, as well as their motivation for learning and academic achievement. Therefore, psychologists need to fully understand the above situations to rule out other possibilities in the assessment process.