01 NRDC Dyslexia 1-88 update - Texthelp

152
Research Report
Study Construct group(s) Selection criteria
Cohen, M. J., Morgan, A. M.,
Vaughn, M., Riccio, C. A. and Hall,
J. (1999). ‘Verbal fluency in
children: developmental issues
and differential validity in
distinguishing children with
Attention-Deficit Hyperactivity
Disorder and two subtypes of
dyslexia’. Archives of Clinical
Neuropsychology, 14(5), 433–443.
Dyslexic vs. ADHD and
normal control children
For dyslexia: normal intelligence and
a IQ/achievement discrepancy of at
least 20 standard score points in
either reading recognition or reading
comprehension or both.
Note Although this table could be extended, it is probably long enough to make its point.