44 Chapter 2 Table 2.3 Regression Weights of Mediation Analyses for Word Decoding and Pseudoword Decoding. Type Effect Coeff SE p BC 95% CI Lower Upper Word decoding Direct (c’) Semantic abilities on word decoding 0.0255 0.0284 .3741 -0.0316 0.0825 Indirect (a) Semantic abilities on phonological awareness 0.1712 0.0615 .0074 0.0478 0.2945 (b) Phonological awareness on word decoding 0.1099 0.0427 .0132 0.0240 0.1958 (ab) Semantic abilities via phonological awareness on word decoding 0.0188 0.0115 - 0.0037 0.0524 (a) Semantic abilities on rapid automatized naming -0.1879 0.0657 .0061 -0.3197 -0.0560 (b) Rapid automatized naming on word decoding -0.1238 0.0409 .0040 -0.2061 -0.0416 (ab) Semantic abilities via rapid automatized naming on word decoding 0.0233 0.0109 - 0.0066 0.0495 (b) Age on word decoding 0.0373 0.0080 <.0001 0.0211 0.0535 (b) Verbal working memory on word decoding 0.0600 0.0679 .3808 -0.076 0.1965 (b) Perceptual organisation on word decoding 0.0400 0.0279 .1585 -0.0162 0.0962 Total (c) Total effect of semantic abilities 0.0414 0.0319 .2000 -0.0226 0.1055 (c) Total effect of age 0.0485 0.0086 <.0001 0.0313 0.0657 (c) Total effect of verbal working memory 0.0488 0.0759 .5237 -0.1038 0.2013 (c) Total effect of perceptual organisation 0.0407 0.0316 .2043 -0.0228 0.1041 Pseudoword decoding Direct (c’) Semantic abilities on pseudoword decoding 0.0183 0.0389 0.6407 -0.0599 0.0964 Indirect (a) Semantic abilities on phonological awareness 0.1712 0.0615 .0074 0.0478 0.2945 (b) Phonological awareness on pseudoword decoding 0.1450 0.0586 .0169 0.0272 0.2627 (ab) Semantic abilities via phonological awareness on pseudoword decoding 0.0248 0.0165 - 0.0017 0.0697 (a) Semantic abilities on rapid automatized naming -0.1879 0.0657 .0061 -0.3197 -0.0560 (b) Rapid automatized naming on pseudoword decoding -0.1331 0.0561 .0216 -0.2459 -0.0204 (ab) Semantic abilities via rapid automatized naming on pseudoword decoding 0.0250 0.0114 - 0.0079 0.0542 (b) Age on word decoding 0.0221 0.0110 0.5120 -0.0001 0.0442 (b) Verbal working memory on pseudoword decoding 0.1589 0.0930 0.0942 -0.0282 0.3459
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