TY - JOUR

T1 - What Reading Disability? Evidence for Multiple Latent Profiles of Struggling Readers in a Large Russian Sibpair Sample With at Least One Sibling at Risk for Reading Difficulties

AU - Kornilov, Sergey A.

AU - Grigorenko, Elena L.

N1 - Publisher Copyright: © Hammill Institute on Disabilities 2017.

PY - 2018/9/1

Y1 - 2018/9/1

N2 - In this study, we performed a latent profile analysis of reading and related skills in a large (n = 733) sibpair sample of Russian readers at risk for reading difficulties. The analysis suggested the presence of seven latent profiles, of which two were characterized by relatively high performance on measures of spelling and reading comprehension and the remaining five included severely as well as moderately affected readers with deficits in the domains of phonological, orthographic, and morphological processing. The results suggest that the development and manifestation of reading difficulties in Russian is mappable on a complex pattern of interactions between different types and severities of processing deficits. The results point to the psychological reality of multiple different suboptimal patterns of deficits in reading and reading-related skills and support the multifactorial view of the disorder, with intriguing implications for future neurobiological studies.

AB - In this study, we performed a latent profile analysis of reading and related skills in a large (n = 733) sibpair sample of Russian readers at risk for reading difficulties. The analysis suggested the presence of seven latent profiles, of which two were characterized by relatively high performance on measures of spelling and reading comprehension and the remaining five included severely as well as moderately affected readers with deficits in the domains of phonological, orthographic, and morphological processing. The results suggest that the development and manifestation of reading difficulties in Russian is mappable on a complex pattern of interactions between different types and severities of processing deficits. The results point to the psychological reality of multiple different suboptimal patterns of deficits in reading and reading-related skills and support the multifactorial view of the disorder, with intriguing implications for future neurobiological studies.

KW - dyslexia

KW - language disorders

KW - latent profiles

KW - morphological awareness

KW - orthographic awareness

KW - phoneme awareness

KW - reading

UR - http://www.scopus.com/inward/record.url?scp=85042373955&partnerID=8YFLogxK

U2 - 10.1177/0022219417718833

DO - 10.1177/0022219417718833

M3 - Article

C2 - 28693368

AN - SCOPUS:85042373955

VL - 51

SP - 434

EP - 443

JO - Journal of Learning Disabilities

JF - Journal of Learning Disabilities

SN - 0022-2194

IS - 5

ER -