Reading in DutchDutch is a regular language with a transparent orthography just like German or Spanish. In words of Jong & van der Leij (1999): "Reading problems in more consistent orthographies are primarily manifested as deficits in reading speed and not as problems in word decoding accuracy. Wimmer (1993) found that the ability that best differentiated normal and poor readers was rapid naming, and he argued that individual differences in rapid naming might be more important for learning to read in a language with a relatively consistent orthography". Therefore, the same results should be expected in a language such as Dutch.
Jong and van der Leij (1999) in a study of 166 dutch children from K to 2nd grade, found that the importance of individuals differences in phonological abilities for subsequent reading acquisition changed over time. The relationship between individual differences in the development of phonological abilities and reading achievement appeared to be dependent on the time that these abilities were assessed and on the phase of reading acquisition. At first, the effects of phonological abilities increased, but after grade 1, these effects disappeared. Phonological awareness and rapid naming had independent and specific influences on reading achievement. Thus, the importance of phonological abilities for learning to read appeared to be limited to the first year of reading instruction (the authors measured phonological awareness by rhymes only, what could explain the different results from previous studies). The authors argue that phonological awareness at the level of phonemes develops alongside or is a consequence of learning to read, because several studies also showed that nonreading children do not possess phonological awareness. Indeed, in their study, those children who knew the 10 most frequent letters of the Dutch alphabet did have higher levels of phonological awareness. So, the level of phonological awareness is dependent on letter knowledge. Furthermore, the consistent effects of rapid naming on learning to read tend to support the suggestion of Wimmer that in languages with fairly transparent GFC, speed might be relatively important.
"After 1 year of instruction (1st grade) the relationship between phonological abilities and reading has stabilized. This is due to the consistency of the dutch orthography. However, those children that do not acquire phonological abilities after 2 or 3 months of instruction are likely to develop reading problems" (Jong and van der Leij, 1999)GFC: grapheme-phoneme correspondences