Browsing by Author "Sleeman M"

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    Evaluation of the “Three Steps in Screening for Dyslexia” Assessment Protocol Designed for New Zealand Teachers
    (Springer Nature, 1/12/2022) Sleeman M; Everatt J; Arrow A; Denston A
    Traditionally, the New Zealand Ministry of Education opposed the recognition of dyslexia. However, since 2007, the Ministry of Education’s position has started to change, evidenced by the development of a working definition. In 2021 the Ministry of Education released Three Steps in Screening for Dyslexia (TSSD), an assessment protocol designed to support teachers to screen for dyslexia. The current research evaluated the TSSD with a sample of 209 children in Years 4 to 6 (8–10 years-of-age) from New Zealand. The research investigated whether children could be accurately classified using tests from the TSSD, whether the three-step protocol described in the TSSD was a valid assessment approach, and what effect operationalising the term average at different cut-off points had on dyslexia screening. Children were classified using two cluster analyses. The first analysis was based on tests from the Woodcock Johnson IV and the second analysis was based on tests from the TSSD. Subsequent analyses investigated specific aspects of the TSSD protocol, including its sequential design and the placement of cut-off points. Results revealed a number of limitations to the TSSD approach. The authors discuss three changes that could be made to improve the validity and reliability of the TSSD, including a broader assessment of the decoding and language comprehension constructs; directing teachers to assess both decoding and language comprehension, irrespective of a child’s language comprehension ability; and placing a greater emphasis on discrepancy bands over cut-off points.
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    Exploring the distribution and cognitive profiles of poor readers across varying levels of reading difficulty: implications for identification and support
    (Wiley, 2024-04-25) Sleeman M; Everatt J; Arrow A; Denston A
    Background This study explored the impact of different cut-off points used to identify children with reading difficulties on the distribution of these children across the three poor reader groups predicted by the simple view of reading (dyslexia, specific comprehension difficulty and mixed difficulty). Additionally, the study investigated whether the cognitive profiles of these poor reader groups remained consistent across varying levels of reading impairment. Methods This study included 209 primary school children from New Zealand, in Years 4–6 and aged 8–10 years, who experienced reading comprehension difficulties. Using a two-step cluster analysis, participants were assigned to one of three poor reader groups: dyslexia, specific comprehension difficulty (SCD) and mixed difficulty. We examined the distribution of children across these groups at eight levels of reading comprehension difficulty and conducted strengths and weaknesses profiles at four levels of reading ability across 14 tests that assessed a range of reading-related skills. Additionally, we compared the performance of children in these groups who performed above and below the 10th percentile on a reading comprehension assessment across these tests. Results The results showed that the proportion of children assigned to each group varied across the reading levels, with children at the lower end of the reading comprehension continuum more likely to exhibit the mixed difficulty profile than the SCD and dyslexia profiles. Overall, the research found that dyslexia, SCD and mixed difficulty profiles could be identified at all levels of reading comprehension difficulty, though weaknesses in their reading-related skills increased as reading comprehension difficulties also increased. Conclusions Our findings suggest that struggling readers demonstrate distinct cognitive profiles across all levels of reading ability. These results have important implications for identifying and supporting struggling readers, as well as enhancing our understanding of the underlying mechanisms of reading difficulties. The possible relationship between the results obtained in this study and tiered models of reading support is discussed.
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    The identification and classification of struggling readers based on the simple view of reading
    (John Wiley & Sons Ltd, 2022-08) Sleeman M; Everatt J; Arrow A; Denston A
    The simple view of reading (SVR) predicts that reading difficulties can result from decoding difficulties, language comprehension difficulties, or a combination of these difficulties. However, classification studies have identified a fourth group of children whose reading difficulties are unexplained by the model. This may be due to the type of classification model used. The current research included 209 children in Grades 3–5 (8–10 years of age) from New Zealand. Children were classified using the traditional approach and a cluster analysis. In contrast to the traditional classification model, the cluster analysis approach eliminated the unexplained reading difficulties group, suggesting that poor readers can be accurately assigned to one of three groups, which are consistent with those predicted by the SVR. The second set of analyses compared the three poor reader groups across 14 measures of reading comprehension, decoding, language comprehension, phonological awareness, and rapid naming. All three groups demonstrated reading comprehension difficulties, but the dyslexia group showed particular weaknesses in word processing and phonological areas, the SCD group showed problems deriving meaning from oral language, and the mixed group showed general deficits in most measures. The findings suggest that the SVR does have the potential to determine reading profiles and differential intervention methods.