A Response to Perfetti’s (1985) Chapter 9 of Reading Ability : “Dyslexia” The Process of Reading and How It is Changed for Dyslexics According to Perfetti (1985) Summary In this chapter, Perfetti defines dsylexia, explores various theories concerning its cause, and looks at various types of subgroups. Also, it is argued that reading ability is a continuum, rather than there being sharp differences between low-readers and dyslexics. In order to be considered dyslexic, a child must be of normal intelligence, and must read at least two years below grade level. However, there are problems with this definition because a reader in second grade will have a hard time meeting the two-years-or-more-below-grade-level criterion, and IQ measured on verbal items may not be normal because these items will presumably show the same deficiencies as found in reading measures. Thus, nonverbal IQ scores should be used for classification, but they aren’t always. A fundamental qu
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