Co-occurrence and cognitive basis of low language and low reading skills in children speaking a transparent language

AbstractWe investigated the comorbidity of low language and reading skills in 6- to 8-year-old monolingual Polish-speaking children (N = 962) using three different approaches: norming data to determine the prevalence of co-morbid difficulties, group comparisons of profiles on key cognitive-linguistic measures, and a case series analysis examining the frequency of single versus multiple deficits. We identified four groups of ch ildren based on their oral language and reading skills: children with low oral language skills alone, low reading skills alone, comorbid low language/reading skills, and typically developing chronological-age controls. We characterized the four groups (n = 38 per group) in terms of oral language and reading skills measured with normed test batteries, and in terms of the cognitive-linguistic profiles measured by the phonological awareness test (PA), rapid automatized naming test (RAN), and nonword repetition tests (NWR). We found that 24–31% o f children with one type of difficulty had comorbid difficulties in the other domain. All groups differed significantly in cognitive-linguistic profiles. For each measure, the comorbid group had the lowest results. The group of children with isolated low language skills had better results than the c omorbid group in (1) Sentence repetition (sub-test in an oral language test), (2) discrimination-based, blending-based, and elision-based PA sub-tests, (3) RAN (both digits and letters). The group with isolate...
Source: Reading and Writing - Category: Child Development Source Type: research