Early prediction of individual growth in reading |
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| Authors: | Jacobson Christer Lundberg Ingvar |
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| Institution: | (1) Department of Education, Växjö, University, Växjö, Sweden;(2) Department of Psychology, Göteborg University, Göteborg, Sweden |
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| Abstract: | Seventy four boys with reading disabilities and amatched control group of normal readers were followedduring their compulsory schooling (to grade 9). Worddecoding performance was assessed with the Wordchainstest on three occasions. For each student a lineargrowth function was estimated. The slope parameter wasused as the dependent variable in a multipleregression analysis with a large number of explanatoryfactors from grades 2 and 3 including phonologicalskills, reading and spelling, non-verbal intelligence,motor skills, eye movements, teacher ratings of schoolbehaviour and parents' education. The proportion ofvariance in growth explained for the reading disabledboys amounted to 25%, the most powerful predictorsbeing early reading performance and non-verbalintelligence. More surprisingly, neither teacherratings nor family background gave useful predictiveinformation. For the control group none of theindependent variables explained the variance of growthin reading. |
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| Keywords: | Growth-curve analysis Reading disability Word decoding |
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