Cognitive profiles of Korean poor readers.

This study compared the performance of 30 poor readers in the third grade with those of 30 average readers of the same age and 30 younger readers matched with the same reading level on phonological, visuo-perceptual, orthographic, and naming speed tasks. Individual data revealed heterogeneous profiles for the poor readers: six (20%) exhibited visual deficit; two (6.7%) had a single phonological deficit; and six (20%) had a double phonological and visual deficit.