Maria Psyridou1, Kenneth Eklund2, Anna-Maija Poikkeus3, Minna Torppa4. 1. Department of Teacher Education, Faculty of Education and Psychology, University of Jyväskylä, P.O. Box 35, Ruusupuisto, Alvar Aallon katu 9, 40014-FIN, Finland. Electronic address: maria.m.psyridou@jyu.fi. 2. Department of Psychology, Faculty of Education and Psychology, University of Jyväskylä, P.O. Box 35, Kärki, Mattilanniemi 6, 40014-FIN, Finland. Electronic address: kenneth.m.eklund@jyu.fi. 3. Department of Teacher Education, Faculty of Education and Psychology, University of Jyväskylä, P.O. Box 35, Ruusupuisto, Alvar Aallon katu 9, 40014-FIN, Finland. Electronic address: anna-maija.poikkeus@jyu.fi. 4. Department of Teacher Education, Faculty of Education and Psychology, University of Jyväskylä, P.O. Box 35, Ruusupuisto, Alvar Aallon katu 9, 40014-FIN, Finland. Electronic address: minna.p.torppa@jyu.fi.
Abstract
BACKGROUND: Delays in expressive vocabulary have been associated with lower outcomes in reading. AIM: The aim is to conduct a long-term follow-up study to investigate if early expressive vocabulary delay (late talking) predicts reading development in participants age 16 and under. We examine further if the prediction is different in the presence of family risk for dyslexia (FR) and early receptive vocabulary delay. METHODS: Expressive and receptive vocabulary skills were assessed at the age of 2-2.5 years, and reading skills in Grades 2, 3, 8 and 9 (age 8-16). The longitudinal sample consisted of 200 Finnish-speaking children, of which 108 had FR for dyslexia and 92 came from families without reading difficulties. We compared the reading development of five subgroups: 1) FR and no vocabulary delay; 2) FR and late talkers, 3) FR, late talkers and co-existing receptive vocabulary delay; 4) no FR and late talkers; and 5) no FR and no vocabulary delay. RESULTS: The group with FR and expressive and receptive vocabulary delay had difficulties in reading comprehension, but not in reading fluency. The late talkers without receptive vocabulary difficulties tended to become typical readers. CONCLUSIONS AND IMPLICATIONS: Delays in early vocabulary can lead to a reading comprehension deficit, with the specification that expressive vocabulary deficit alone can alleviate in time, whereas the combined deficit is a stronger risk marker.
BACKGROUND: Delays in expressive vocabulary have been associated with lower outcomes in reading. AIM: The aim is to conduct a long-term follow-up study to investigate if early expressive vocabulary delay (late talking) predicts reading development in participants age 16 and under. We examine further if the prediction is different in the presence of family risk for dyslexia (FR) and early receptive vocabulary delay. METHODS: Expressive and receptive vocabulary skills were assessed at the age of 2-2.5 years, and reading skills in Grades 2, 3, 8 and 9 (age 8-16). The longitudinal sample consisted of 200 Finnish-speaking children, of which 108 had FR for dyslexia and 92 came from families without reading difficulties. We compared the reading development of five subgroups: 1) FR and no vocabulary delay; 2) FR and late talkers, 3) FR, late talkers and co-existing receptive vocabulary delay; 4) no FR and late talkers; and 5) no FR and no vocabulary delay. RESULTS: The group with FR and expressive and receptive vocabulary delay had difficulties in reading comprehension, but not in reading fluency. The late talkers without receptive vocabulary difficulties tended to become typical readers. CONCLUSIONS AND IMPLICATIONS: Delays in early vocabulary can lead to a reading comprehension deficit, with the specification that expressive vocabulary deficit alone can alleviate in time, whereas the combined deficit is a stronger risk marker.
Authors: Philip S Dale; Sophie von Stumm; Saskia Selzam; Marianna E Hayiou-Thomas Journal: J Speech Lang Hear Res Date: 2020-04-28 Impact factor: 2.297
Authors: Kaisa Lohvansuu; Minna Torppa; Timo Ahonen; Kenneth Eklund; Jarmo A Hämäläinen; Paavo H T Leppänen; Heikki Lyytinen Journal: Brain Sci Date: 2021-03-27