P. Snellings

First language and second language writing: The role of linguistic knowledge, speed of processing, and metacognitive knowledge

In this study the relative importance of linguistic knowledge, metacognitive knowledge, and fluency or accessibility of this linguistic knowledge in both first language (L1; Dutch) and second language (L2; English) writing was explored. Data were collected from 281 grade 8 students. Using structural equation modeling, the relative importance of the three components was studied and compared across L1 and L2 writing. The results showed that the fluency measures were correlated with overall writing performance in both L1 and L2. However, when compared to linguistic knowledge resources, these fluency measures turned out to have no additional value in predicting L1 or L2 writing performance. L2 writing proficiency turned out to be highly correlated with L1 writing proficiency, more than with either L2 linguistic knowledge or the accessibility of this knowledge.

Linguistic knowledge, processing speed, and metacognitive knowledge in first- and second-language reading comprehension: A componential analysis

The authors report results of a study into the role of components of first-language (L1; Dutch) and second-language (L2; English) reading comprehension. Differences in the contributions of components of L1 and L2 reading comprehension are analyzed, in particular processing speed in L1 and L2. Findings indicate that regression weights of the L1 and L2 components are different. Although correlations between most processing speed components and reading comprehension are substantial, there are no unique contributions to the explanation of either L1 or L2 reading comprehension when linguistic and metacognitive knowledge are accounted for. In addition, L1 reading comprehension is shown to have a large contribution to L2 reading comprehension, supporting theories of L1-L2 transfer of reading skills. Results are discussed from a developmental perspective.

Roles of linguistic knowledge, metacognitive knowledge and processing speed in L3, L2 and L1 reading comprehension A structural equation modeling approach

In this article we present an analysis of the relationship between L3 reading comprehension and its constituent skills for bilingual Dutch students for whom English is a third language(L3) compared to monolingual Dutch students for whom English is a second language(L2). An analogous analysis is made for their Dutch reading comprehension, Dutch being their L2 and L1 respectively. Participants are 13/14 year-old secondary school students. The point of departure in the analyses is a regression model in which reading proficiency is decomposed into three types of constituent components: linguistic knowledge(vocabulary and grammar), speed of processing linguistic knowledge(lexical access and sentence comprehension), and metacognitive knowledge(of text characteristics and strategies for reading and writing). Using structural equation modeling, we determined the contribution of constituent skills to Dutch L2 and L1, and English L3 and L2 reading comprehension. The results showed that, despite differences between the two groups in Dutch and English reading comprehension, no differences between the groups were found in the pattern of regression weights on the three types of constituent skills. Possible implications of these findings are discussed.

Enhancing the Reading Fluency and Comprehension of Children with Reading Disabilities in an Orthographically Transparent Language.

Breznitz (2006) demonstrated that Hebrew-speaking adults with reading disabilities benefited from a training in which reading rate was experimentally manipulated. In the present study, the authors examine whether silent reading training enhances the sentence reading rate and comprehension of children with reading disabilities and whether results found in Hebrew equally apply to an orthographically transparent language. Training results of 59 Dutch children with reading disabilities and normally achieving children show that children with reading disabilities are able to increase their sentence reading rate with high comprehension levels when pushed to do so with accelerated reading training. Posttest results show that transfer to routine reading is less strong for both accelerated and unaccelerated reading. Only accelerated training allows children with reading disabilities to read at high speed while maintaining high comprehension levels.

Linguistic Knowledge, Metacognitive Knowledge And Retrieval Speed In L1, L2 And Efl Writing A structural equation modelling approach

This chapter presents an analysis of the Dutch and English writing proficiency of students who learned Dutch as a second language, compared to students for whom Dutch is the first language. Participants are 13/14 year-old secondary school students. The point of departure in the analyses is a regression model in which writing proficiency is decomposed into three types of constituent subskills: linguistic knowledge (vocabulary, grammar, and orthographic knowledge), speed or fluency of processing linguistic knowledge (word retrieval and sentence building), and metacognitive knowledge of both text characteristics and reading and writing strategies. This study investigates whether there are structural differences in both the Dutch writing and the English writing of the non-native speakers of Dutch compared to their native Dutch-speaking peers. Our hypothesis is that the two groups will differ in their Dutch writing, but not so much in their English writing. Using structural equation modelling, we firstly test whether the writing model for the native Dutch writers, with respect to the explanatory value of the constituent skills, holds for the non-native Dutch writers as well. Secondly, we test whether the English writing ‘decomposition’ is the same across the two student groups. Despite the differences in writing proficiency, no essential differences between the two groups were found in the pattern of weights of either Dutch or English writing proficiency on the three types of predictor variables (language knowledge, retrieval speed, and metacognitive knowledge).

The effect of enhanced lexical retrieval on second language writing: A classroom experiment

Lexical retrieval is an essential subprocess in language production, and its efficiency is crucial for writing. To improve writing quality in a second language, we developed an experimental, computerized training for improving fluency of lexical retrieval in a classroom setting, applying techniques previously restricted to laboratory use. In a counterbalanced design with randomized assignment, each of two groups was trained on a different set of words for productive use. A previous study showed that students in both groups attained greater fluency of lexical retrieval on the trained word set in comparison to students who were not trained on that word set. The current study provides evidence that this enhanced fluency transferred to narrative writing, as students in both groups used the trained words more often in narrative texts. In addition, one of the groups showed significant improvement in their expression of essential content elements. However, no significant differences were found on global quality ratings. The results are discussed in the context of theories of limited processing capacity during text production. We also consider the implications of these results for language instruction.

Specifying Theories of Developmental Dyslexia: A Diffusion Model Analysis of Word Recognition.

The nature of word recognition difficulties in developmental dyslexia is still a topic of controversy. We investigated the contribution of phonological processing deficits and uncertainty to the word recognition difficulties of dyslexic children by mathematical diffusion modeling of visual and auditory lexical decision data. The first study showed that poor visual lexical decision performance of reading disabled children was mainly due to a delay in the evaluation of word characteristics, suggesting impaired phonological processing. The adoption of elevated certainty criteria by the disabled readers suggests that uncertainty contributed to the visual word recognition impairments as well. The second study replicated the outcomes for visual lexical decision with formally diagnosed dyslexic children. In addition, during auditory lexical decision, dyslexics presented with reduced accuracy, which also resulted from delayed evaluation of word characteristics. Since orthographic influences are diminished during auditory lexical decision, this strengthens the phonological processing deficit account. Dyslexic children did not adopt heightened certainty criteria during auditory lexical decision, indicating that uncertainty solely impairs reading and not listening.

A lab-controlled simulation of a letter-speech sound binding deficit in dyslexia.

Dyslexic and non-dyslexic readers engaged in a short training aimed at learning eight basic letter-speech sound correspondences within an artificial orthography. We examined whether a letter-speech sound binding deficit is behaviorally detectable within the initial steps of learning a novel script. Both letter knowledge and word reading ability within the artificial script were assessed. An additional goal was to investigate the influence of instructional approach on the initial learning of letter-speech sound correspondences. We assigned children from both groups to one of three different training conditions: (a) explicit instruction, (b) implicit associative learning within a computer game environment, or (c) a combination of (a) and (b) in which explicit instruction is followed by implicit learning. Our results indicated that dyslexics were outperformed by the controls on a time-pressured binding task and a word reading task within the artificial orthography, providing empirical support for the view that a letter-speech sound binding deficit is a key factor in dyslexia. A combination of explicit instruction and implicit techniques proved to be a more powerful tool in the initial teaching of letter-sound correspondences than implicit training alone.

Validating a test of second language written lexical retrieval: a new measure of fluency in written language production

Lexical retrieval is an essential subprocess of language production and crucial in fluent writing and speaking. In this study we discuss a new measure of the speed of written lexical retrieval in a second language, the Written Productive Translation Task (WPTT). In contrast to Picture Naming tasks, the WPTT is not restricted to concrete nouns and verbs that can be depicted by pictures. The WPTT can also test combinations of words. Moreover, the WPTT can be used in a classroom setting because individual testing is not required. Using Messick’s 1989 framework, we investigated whether the WPTT is an appropriate measure of the construct of written lexical retrieval. In a multiple regression approach we examined the relationship between the WPTT and another test of the same construct, a written Picture Naming task. In addition, we looked at the relationship with other related constructs such as lexical access and orthographic encoding. Results suggest that the WPTT is both a reliable and valid measure of written lexical retrieval. When corrected for typing speed, the WPTT is related to the Picture Naming task and Orthographic Encoding. Finally, the results show that the relationship between the WPTT and the Lexical Decision Task is not very strong. This study makes clear that Lexical Decision Tasks do not constitute a valid substitute for measuring written lexical retrieval. At the same time it underlines the advantages of using a test specifically developed for measuring speed of written lexical retrieval like the WPTT.

Time course analyses of orthographic and phonological priming effects during word recognition in a transparent orthography

In opaque orthographies, the activation of orthographic and phonological codes follows distinct time courses during visual word recognition. However, it is unclear how orthography and phonology are accessed in more transparent orthographies. Therefore, we conducted time course analyses of masked priming effects in the transparent Dutch orthography. The first study used targets with small phonological differences between phonological and orthographic primes, which are typical in transparent orthographies. Results showed consistent orthographic priming effects, yet phonological priming effects were absent. The second study explicitly manipulated the strength of the phonological difference and revealed that both orthographic and phonological priming effects became identifiable when phonological differences were strong enough. This suggests that, similar to opaque orthographies, strong phonological differences are a prerequisite to separate orthographic and phonological priming effects in transparent orthographies. Orthographic and phonological priming appeared to follow distinct time courses, with orthographic codes being quickly translated into phonological codes and phonology dominating the remainder of the lexical access phase.