The Principal investigator of the Florida Learning Disability Center is 
Dr. Richard K. Wagner. Past research from Dr. Wagner’s lab resulted in 
the development of the Comprehensive Test of Phonological Processing 
(CTOPP, Wagner, Torgesen, and Rashotte, ProEd: 1999) The CTOPP assesses 
phonological awareness, phonological memory, and rapid naming. These 
three factors are the most common causes of learning disability in 
general and reading disability in particular. They also play a role in 
mathematical calculation, listening comprehension and reading 
comprehension. The CTOPP identifies kindergarten through college age 
students who may profit from instruction in these areas.

Do you use any of the CTOPP measures?

Have students that you see who have a diagnosis of LD or dyslexia been 
assessed by these measures?


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