This study provides a meta-analysis of the correlational literature on measures of phonological awareness, rapid naming, reading, and related abilities. Correlations (N = 2,257) were corrected for sample size, restriction in range, and attenuation from 49 independent samples. Correlations between phonological awareness (PA) and rapid naming (RAN) were low (.38) and loaded on different factors. PA and RAN were moderately correlated with real-word reading (.48 and .46, respectively). Other findings were that (a) real-word reading was correlated best (r values were .60 to .80) with spelling and pseudoword reading, but correlations with RAN, PA, vocabulary, orthography, IQ, and memory measures were in the low-to-moderate range (.37 to .43); and (b) correlations between reading and RAN/PA varied minimally across age groups but were weaker in poor readers than in skilled readers. The results suggested that the importance of RAN and PA measures in accounting for reading performance has been overstated.
This study examined the way successful college students with LD compensated for their deficits in phonological processing. Successful was defined as average or above-average grades in college coursework. The study compared the cognitive and metacognitive performance of students with and without LD (N=40). Although achievement levels for both groups were comparable, students with LD scored significantly lower than students without LD in word reading, processing speed, semantic processing, and short-term memory. Differences were also found between groups in self-regulation and number of hours of studying. Results showed that students with LD compensated for their processing deficits by relying on verbal abilities, learning strategies, and help seeking.
Speech sound disorders appear to be an overt manifestation of a complex interaction among variables influencing literacy skills, including nonlanguage cognition, vocabulary, letter knowledge, and phonological awareness. These interrelationships hold across the range of speech sound production skill, as children with superior speech sound production skill experience superior literacy outcomes.
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