Turkish-Dutch Bilingual Children Research Articles

Turkish spelling errors by Turkish-Dutch bilingual children

The current pilot study adds to the small body of work focusing on Turkish-Dutch children's Turkish literacy attainment by investigating their spelling errors. This study deviates from the previous studies by attempting to find patterns behind the surface representation of errors (i.e. omission, substitution and addition). Fifty-three 10 to 12 year-old Turkish-Dutch bilingual children were asked to write Turkish narratives. The participants misspelled about half of the words. The errors in order of frequency were diacritic errors (i.e. confusing the graphemes with and without diacritics), orthographic ambiguity errors (i.e. phonetically spelling a word though it is not orthographically transparent), punctuation errors, capitalization errors, morphological errors (e.g. using a wrong allomorph of a suffix), spacing errors (e.g. writing two words as one), code-switching (i.e. utilizing Dutch words in Turkish sentences) and Dutch-influenced errors (i.e. using Dutch orthographic rules in Turkish such as spelling /j/ as <j> or /u/ as <oe>). The rest of the errors, which lacked a discernible pattern, were categorized as “other”. These results differed from the findings on Turkish monolingual children's spelling errors in the literature in some notable ways (e.g. the very high rate of misspelled words and the prevalence of diacritic errors).

A longitudinal study of Turkish-Dutch children’s language mixing in single-language settings: Language status, language proficiency, cognitive control and developmental language disorder

The aim of this study was to investigate the role of language status, language proficiency, cognitive control and Developmental Language Disorder (DLD) in bilingual Turkish-Dutch children’s language mixing in single-language settings. We investigated these factors over time following 31 children (20 with typical development, 11 with DLD), from the age of 5 or 6 years until they were 7 or 8 years old. Children more often mix the majority-societal language (Dutch) into the minority-heritage language (Turkish) than the other way around. Higher proficiency in Dutch, lower proficiency in Turkish, and having DLD are linked to more mixing in the Turkish setting. Effects of cognitive control on children’s language mixing are limited. Linguistic factors at a child-external and child-internal level impact on children’s mixing in single-language settings, and are more important than domain-general cognitive control. Increasing language proficiency in Turkish could explain why children mix less as they grow older.

Effect of a Group-Based Narrative Language Training in Typically Developing Turkish-Dutch Children.

Due to the heterogeneity in language trajectories and differences in language exposure, a lot of bilingual children could use some extra support for the acquisition of the school language to reduce the risk of language problems and learning difficulties. Enhancing bilingual children's narrative abilities in the school language could be an efficient approach to advance the general school language abilities as well. Therefore, this study aimed to investigate whether a narrative intervention could improve both general and narrative school language abilities of typically developing bilingual (Turkish-Dutch) children. Nineteen Turkish-Dutch bilingual children (6-9.9 years) were enrolled in this single-arm early efficacy study. The intervention procedure was administered in the school language (Dutch) and based on a test-teach-retest principle with two baseline measurements. At baseline 1, the expressive, receptive, and narrative language abilities were determined. The second baseline measurement consisted of a second measurement of the narrative abilities. Subsequently, a weekly 1-h group-based intervention was implemented during 10 sessions. After the intervention phase, the expressive, receptive, and narrative language abilities were tested again. After the intervention, the children produced significantly more story structure elements compared to both baseline measurements. No significant differences were found for microstructure narrative measures. The participants had significantly higher scores on the expressive and receptive language measurements post-intervention. These findings suggest that the intervention could be an efficient approach to stimulate the second language development of bilingual children.

Grammatical development in both languages of bilingual Turkish-Dutch children with and without Developmental Language Disorder

IntroductionTo guarantee a reliable diagnosis of Developmental Language Disorder (DLD) in bilingual children, evaluating both languages is recommended. However, little is known about how DLD impacts the heritage language, and it is largely unknown whether bilingual children with DLD develop the heritage language at the same pace as their peers with typical development (TD).MethodsFor this longitudinal study that focused on children's grammatical development, we analyzed semi-spontaneous speech samples of 10 Turkish-Dutch children with DLD (bi-DLD) and 10 Turkish-Dutch children with typical development (bi-TD). Children were 5 or 6 years old at the first wave of data collection, and there were three waves of longitudinal data collection with 1-year intervals. In addition, data from 20 monolingual Dutch controls were analyzed (10 mono-DLD, 10 mono-TD).Results and discussionResults indicate that heritage language assessment can inform clinical diagnosis. In the case of Turkish spoken in the Netherlands, short sentences, the absence of the genitive suffix in simple constructions and avoidance of complex constructions that require possessive marking could potentially be clinical markers of DLD. Accusative case errors are also relatively frequent in bilingual Turkish-Dutch children with DLD, but these are less promising as a clinical marker because previous research suggests that omission and substitution of accusative case can be part of the input to Turkish heritage language learners. In Dutch, frequent omission of grammatical morphemes in the verbal domain coupled with a limited amount of overregularization errors could indicate that a child is at risk for DLD, both in bilingual and monolingual contexts. Cross-linguistic comparisons of error types in Turkish and Dutch confirm that, regardless of typological differences, children with DLD use short sentences, avoid complex structures, and omit grammatical morphemes. Longitudinal analyses revealed that children with DLD can develop the heritage language at the same pace as TD children, even if this language is not supported at school. Strong intergenerational transmission and heritage language maintenance among Turkish migrants in the Netherlands may be key.

THE RELATIONSHIP BETWEEN COGNITIVE-LINGUISTIC TASK DIFFICULTY AND L1-L2 INTERACTION FOR ACADEMIC LISTENING COMPREHENSION IN TURKISH–DUTCH EMERGENT BILINGUALS

AbstractThis study investigated the relationship between the level of cognitive-linguistic difficulty of task input and the size of the cross-linguistic relationship for academic listening comprehension in emergent bilinguals. It was theoretically motivated by task-dependent cross-linguistic interaction frameworks. We hypothesized that task item sets that involve a higher level of cognitive-linguistic difficulty, drawing on a number of sources of item difficulty, would show a smaller strength of interaction than sets involving a lower level. Using a task-based assessment instrument, listening comprehension was measured in 75 Turkish–Dutch bilingual children at first-grade entry (Mage = 6;7). Partial L1-L2 correlations indicated that cognitively more demanding item sets tended to coincide with smaller L1-L2 correlations. This finding was, in part, consistent for cognitive difficulty, yet inconclusive for linguistic difficulty. An explanation is discussed that, in line with information-processing theory, highlights a trade-off between cognitive-linguistic task demands and cross-linguistic influence.

Regular and Irregular Inflection in Different Groups of Bilingual Children and the Role of Verbal Short-Term and Verbal Working Memory

Bilingual children often experience difficulties with inflectional morphology. The aim of this longitudinal study was to investigate how regularity of inflection in combination with verbal short-term and working memory (VSTM, VWM) influences bilingual children’s performance. Data from 231 typically developing five- to eight-year-old children were analyzed: Dutch monolingual children (N = 45), Frisian-Dutch bilingual children (N = 106), Turkish-Dutch bilingual children (N = 31), Tarifit-Dutch bilingual children (N = 38) and Arabic-Dutch bilingual children (N = 11). Inflection was measured with an expressive morphology task. VSTM and VWM were measured with a Forward and Backward Digit Span task, respectively. The results showed that, overall, children performed more accurately at regular than irregular forms, with the smallest gap between regulars and irregulars for monolinguals. Furthermore, this gap was smaller for older children and children who scored better on a non-verbal intelligence measure. In bilingual children, higher accuracy at using (irregular) inflection was predicted by a smaller cross-linguistic distance, a larger amount of Dutch at home, and a higher level of parental education. Finally, children with better VSTM, but not VWM, were more accurate at using regular and irregular inflection.

Language Development in Turkish-Dutch Bilingual Children

Introduction: In the current literature, there is a well-established necessity for the improvement of bilingual language diagnostics. Nowadays, the majority of clinicians in Belgium still rely on standardized tests with monolingual norm samples. It is therefore fundamental to have a detailed knowledge of the performance of bilingual children on these monolingual normed tests. Furthermore, there is also a need for unambiguous longitudinal research on the language performances of bilingual children. Therefore, this study aims to investigate the language skills of 25 Turkish-Dutch successive bilinguals compared to 25 age- and gender-matched monolingual Dutch children. In 9 bilinguals and 13 monolinguals, longitudinal data of 3 years (at 6 years and at 9 years) were collected and compared. Methods: The subject group consisted of 25 bilingual Turkish-Dutch children with a mean age of 9 years and 6 months (SD 0.26 years, min. 8 years and 11 months to max. 9 years and 10 months) with Turkish as the dominant home language. Language exposure to Dutch was at least 3 years. An age- and gender-matched control group of 25 monolingual Dutch children with same educational backgrounds was compiled. Language skills were investigated using the Dutch version of the CELF. In 22 children, language skills were reassessed 3 years later in a follow-up study. Data were compared using the Mann-Whitney U test and Wilcoxon matched-pairs signed-rank test. Results: Language comprehension and production were significantly lower in the bilingual children compared to the monolinguals. After 3 years, the language delay in bilingual Turkish-Dutch children remained the same. Language production in the bilingual children was mainly influenced by the profession of the mother and the home language. Conclusion: The low performances of typically developing Turkish-Dutch children on language batteries are worrying and have clinical implications. The same language gap was found at the age of 6 and 9 years in Turkish-Dutch bilingual children compared to monolingual Dutch children, implying that the bilingual children did not catch up with their peers.

Dutch speech intelligibility in bilingual Turkish-Dutch children in Flanders

AbstractThis study examines the Dutch intelligibility of a group of monolingual Dutch and bilingual Turkish-Dutch preschool children in Flanders, as rated by native Dutch listeners and measured by a Dutch intelligibility test. The intelligibility of the bilingual children is compared to that of the monolingual Dutch children, in order to examine whether age and/or task effects are similar or different in the two groups. The results revealed that intelligibility was affected by age, but showed no significant interaction between age and group. However, we found a significant interaction between age and task: children’s intelligibility increased with age for a word production as well as a sentence production task, but much more so for the latter than for the former. We discuss the results in relation to the children’s developing phonological systems, the age of exposure to Dutch and the nature of the test.

The Strength of Cross‐Language Interdependence for Listening Comprehension Proficiency in Turkish–Dutch Emergent Bilinguals: Testing Three Hypotheses

AbstractThis study aimed to test three competing hypotheses concerning the strength of the cross‐language relationship in listening comprehension proficiency in emergent bilinguals: Cummins's developmental linguistic interdependence hypothesis, Proctor, August, Snow, and Barr's interdependence continuum hypothesis, and Goodrich, Lonigan, Kleuver, and Farver's language independence hypothesis. We assessed 75 Turkish–Dutch bilingual children attending Dutch‐medium schools using a two‐wave design. This involved an assessment of sentence comprehension when the children were in preschool, followed by an assessment of their discourse comprehension in 1st grade. Correlational, multiple regression, and path analyses indicated significant positive and medium‐sized L1–L2 relationships between listening comprehension proficiency at the two points in time yet not over time. These findings were consistent with the developmental linguistic interdependence hypothesis for sentence comprehension and with the developmental linguistic interdependence and the language independence hypotheses for discourse comprehension. We advocate a multidimensional explanatory framework to explore the moderating role of type of skill in determining the strength of the cross‐language relationship.

No Bilingual Benefits Despite Relations Between Language Switching and Task Switching.

Previous research has shown that bilingual children outperform monolinguals on tasks testing cognitive control. Bilinguals’ enhanced cognitive control is thought to be caused by the necessity to exert more language control in bilingual compared to monolingual settings. Surprisingly, between-group research of cognitive effects of bilingualism is hardly ever combined with within-group research that investigates relationships between language control and cognitive control. The present study compared 27 monolingual Dutch and 27 bilingual Turkish-Dutch children matched on age and fluid intelligence on their performance in a nonverbal switching task. Within the group of bilinguals, the relationship between nonverbal switching and language switching was examined. The results revealed no between-group differences on nonverbal switching. Within the bilingual sample, response times in the language switching and nonverbal switching tasks were related, although no relationships were found between accuracy, switching cost and mixing cost on both tasks. The results support the hypothesis that children utilize domain-general cognitive control in language switching, but this relationship does not entail that bilinguals have better cognitive control than monolinguals.

First and second language vocabulary affect early second language reading comprehension development

The aim of this study was to examine variation in early reading comprehension development for second language (L2) readers compared with first language (L1) readers and to investigate the impact of vocabulary knowledge in their first and second language. Participants were 75 Dutch monolingual children (L1 readers) and 71 Turkish–Dutch bilingual children (L2 readers), aged between 6 and 8 years old at the start of the study. In a longitudinal design, three waves of data were collected across second and third grades. The L2 readers had lower reading comprehension scores than the L1 readers on average, but this performance gap narrowed over time. To further investigate variation among the L2 readers, four categorical subgroups of L2 readers were identified with varying levels of L1 (Turkish) and L2 (Dutch) vocabulary knowledge by means of cluster analysis. Group membership was related to reading comprehension and showed an interaction with time, indicating that reading comprehension performance of the two L2 subgroups with high L1 vocabulary increased more over time compared with L1 readers. The L2 subgroup with high vocabulary in both languages even caught up with their monolingual peers in third grade. These findings demonstrate how individual differences in L1 and L2 vocabulary knowledge explain variation in early L2 reading comprehension development and highlight the importance of considering L2 readers' first language in research and education.

Language abilities in bilingual children: The effect of family background and language exposure on the development of Turkish and Dutch

Aims and objectives: The study investigates the effects of family background and language exposure on the language abilities of Turkish-Dutch bilingual children in their heritage language, Turkish, as well as in the majority language, Dutch. Methodology: Thirty-five children (3;01-6;11) participated in the study. All children took two standardized proficiency tests: CELF-Preschool 2 in Dutch and TEDİL in Turkish. Parents were interviewed on the family background and on the children’s use of and exposure to Dutch and Turkish. Data and analysis: Children’s test scores in Dutch and Turkish were analyzed in relation to the amount of exposure to Dutch and Turkish and the socio-economic and linguistic background of the parents. Findings: The results reveal that the children’s home context—both the linguistic background of the parents and the socio-educational level of the mother—affected the children’s scores, especially for Dutch. The amount of exposure to and use of Dutch and Turkish was correlated to the Dutch and Turkish scores. A qualitative discussion of children’s profiles revealed that children’s performance can only be fully understood when details of the home context, obtained through interviews with the parents, are taken into account. Originality: To date, few studies on bilingual children from families with a migration background have examined young children’s general language abilities in both the heritage language and the majority language. Implications: The study raises awareness of the importance of evaluating bilingual children’s language proficiencies in both languages, considering the effects of family background and language exposure on children’s bilingual language development. Limitations: The children’s language abilities were mapped on the basis of widely recognized standardized tests originally developed for the assessment of monolingual children. As more bilingual instruments are being tested and developed, future research will benefit from these tools.

Early lexical composition of Turkish-Dutch bilinguals: Nouns before verbs or verbs before nouns

AbstractNouns and verbs are considered as fundamental categories of lexical development, and there are contradicting views on the order of the acquisition. One view claims that nouns are acquired earlier than verbs and this primacy of nouns can be attributed to perceptual-conceptual constraints from a linguistic point of view, on the other hand, nouns and verbs are the lexical units which categorically highlight language-general and language-specific characteristics. These language-specific characteristics have motivated this research because of the different typological characteristics between Turkish and Dutch in terms of nouns and verbs. The aim of this study is two-fold: to investigate the Dutch and Turkish lexicon of Turkish-Dutch bilingual children with respect to noun-verb categories and to consider the role of gender. Our sample comprised 55 Turkish-Dutch bilingual children aged between 9 and 36 months. We found that age, language and gender are at play during early lexical development. Vocabulary develops after 12 months and nouns are prioritized over verbs both in comprehension and production.

Growth of verbal short-term memory of nonwords varying in phonotactic probability: A longitudinal study with monolingual and bilingual children

Abstract This study investigates the hypothesis that verbal short-term memory growth in young children can be explained by increases in long-term linguistic knowledge. To this aim, we compare children’s recall of nonwords varying in phonotactic probability. If our assumption holds, there should be growth in recall of high-probability nonwords, but no or less growth in recall of low-probability nonwords. Monolingual and bilingual children are compared to see if bilingual children who have less phonotactic knowledge of the target language (Dutch) show different growth patterns than their monolingual peers. Participants were 72 monolingual Dutch children and 69 bilingual Turkish-Dutch children with Dutch as their non-dominant language. Children were assessed at four, five and six years of age. At all ages, they completed serial nonword recall tasks containing Dutch-based high- and low-probability nonwords. They also performed a series of control measures, including a Dutch receptive vocabulary task. Latent Growth Modeling was used to model the data. A model with clear improvement in children’s recall of high-probability nonwords, but no improvement in recall of low-probability nonwords in both groups, and equal gains of recall of high-probability nonwords in the two groups, gave good fit to the data. These results indicate that (i) verbal short-term memory growth can be explained by increases in long-term phonotactic knowledge and (ii) bilingual children with lower levels of phonotactic knowledge in the target language benefit from such knowledge to the same degree as monolingual children.

The benefits of being bilingual: Working memory in bilingual Turkish–Dutch children

Whether bilingual children outperform monolingual children on visuospatial and verbal working memory tests was investigated. In addition, relations among bilingual proficiency, language use at home, and working memory were explored. The bilingual Turkish–Dutch children (n=68) in this study were raised in families with lower socioeconomic status (SES) and had smaller Dutch vocabularies than Dutch monolingual controls (n=52). Having these characteristics, they are part of an under-researched bilingual population. It was found that the bilingual Turkish–Dutch children showed cognitive gains in visuospatial and verbal working memory tests when SES and vocabulary were controlled, in particular on tests that require processing and not merely storage. These findings converge with recent studies that have revealed bilingual cognitive advantages beyond inhibition, and they support the hypothesis that experience with dual language management influences the central executive control system that regulates processing across a wide range of task demands. Furthermore, the results show that bilingual cognitive advantages are found in socioeconomically disadvantaged bilingual populations and suggest that benefits to executive control are moderated by bilingual proficiency.

Lexical processing of nominal compounds in first- and second-language learners across primary grades

We investigated processing strategies in the reading of Dutch compound words (e.g., ‘bezemsteel’ [broomstick]) by young first- (L1) and second-language (L2) learners in three grades of primary school. Turkish-Dutch bilingual children (L2) and Dutch monolingual children (L1) from second, fourth and sixth grade performed a lexical decision task in which the frequency of the whole compound, the frequency of the first constituent and the frequency of the second constituent was manipulated. We found that reaction times and accuracy scores were influenced by both whole-word and constituent information in both the L1 and L2 learners in all grades. However, the L2 learners were typically less efficient in processing this information. In addition, the way in which whole-word and constituent frequency was processed by the L1 and L2 learners was not stable across grades. The results are discussed in terms of theories on morphological processing and reading acquisition.

Verb inflection in monolingual Dutch and sequential bilingual Turkish–Dutch children with and without SLI

Both children with specific language impairment (SLI) and children who acquire a second language (L2) make errors with verb inflection. This overlap between SLI and L2 raises the question if verb inflection can discriminate between L2 children with and without SLI. In this study we addressed this question for Dutch. The secondary goal of the study was to investigate variation in error types and error profiles across groups. Data were collected from 6-8-year-old children with SLI who acquire Dutch as their first language (L1), Dutch L1 children with a typical development (TD), Dutch L2 children with SLI, and Dutch L1 TD children who were on average 2 years younger. An experimental elicitation task was employed that tested use of verb inflection; context (3SG, 3PL) was manipulated and word order and verb type were controlled. Accuracy analyses revealed effects of impairment in both L1 and L2 children with SLI. However, individual variation indicated that there is no specific error profile for SLI. Verb inflection use as measured in our study discriminated fairly well in the L1 group but classification was less accurate in the L2 group. Between-group differences emerged furthermore for certain types of errors, but all groups also showed considerable variation in errors and there was not a specific error profile that distinguished SLI from TD.

Linguistic transfer in bilingual children with specific language impairment

In the literature so far the limited research on specific language impairment (SLI) in bilingual children has concentrated on linguistic skills in the first language (L1) and/or the second language (L2) without paying attention to the relations between the two types of skills and to the issue of linguistic transfer. To examine the first and second language proficiency of 75 Turkish-Dutch bilingual children with SLI in the age range between 7 and 11 years living in the Netherlands. A multidimensional perspective on language proficiency was taken in order to assess children's Turkish and Dutch proficiency levels, whereas equivalent tests were used in order to determine language dominance. A second aim was to find out to what extent the children's proficiency in L2 can be predicted from their L1 proficiency, while taking into account their general cognitive abilities. The children's performance on a battery of equivalent language ability tests in Turkish and Dutch was compared at three age levels. By means of analyses of variance, it was explored to what extent the factors of language and grade level as well as their interactions were significant. Bivariate correlations and partial correlations with age level partialled out were computed to examine the relationships between L1 and L2 proficiency levels. Moreover, regression analysis was conducted to find out to what extent the variance in general L2 proficiency levels could be explained by children's L1 proficiency, short-term memory and non-verbal intelligence. Repeated measures analyses showed that the children had generally higher scores on L1 as compared with L2 and that with progression of age the children's scores in L1 and L2 improved. Medium to high correlations were found between phonological memory, phonological awareness, grammatical skills and story comprehension in the two languages. Regression analysis revealed that children's L2 proficiency levels could be explained by their proficiency levels in L1, even after controlling for children's non-verbal intelligence and working memory. It is concluded that children's formal linguistic skills in L1 and L2 tend to be related and that their level of L1 proficiency may help to develop linguistic skills in L2.

Effects of input on the early grammatical development of bilingual children

This study investigates the language development of 2- to 3-year-old Turkish—Dutch bilingual children with different amounts of input quantity. Developmental patterns in spontaneous speech data of the bilingual children are compared to those of monolingual children of the same age. It is found that low input quantity leads to slower grammatical development, but only if input is clearly reduced. The observation that not only mean length of utterance but also the development of finiteness can show pronounced delays in bilingual language acquisition contradicts maturational views of grammatical development. However, such overall delays are expected given input-based theories of grammatical acquisition. All four bilingual children show difficulties in establishing the relation between finiteness and expression of grammatical subjects in Dutch. It is argued that cross-linguistic influence, driven by surface overlap between Turkish and Dutch, may account for this observation.

Phonotactic probability effect in nonword recall and its relationship with vocabulary in monolingual and bilingual preschoolers

The current study examined to what extent information in long-term memory concerning the distribution of phoneme clusters in a language, so-called long-term phonotactic knowledge, increased the capacity of verbal short-term memory in young language learners and, through increased verbal short-term memory capacity, supported these children’s first and second language vocabulary acquisition. Participants were 67 monolingual Dutch and 60 bilingual Turkish–Dutch 4-year-olds. The superior recall of nonwords with high phonotactic probability compared with nonwords with low phonotactic probability indicated that phonotactic knowledge was supportive for verbal short-term recall in both languages. The extent of this support depended on prior experiences with the language: The Turkish–Dutch children showed a greater phonotactic probability effect in their native language Turkish compared with their Dutch peers, and the monolingual Dutch children outperformed the bilingual Turkish–Dutch children in their native language Dutch. Regression analyses showed that phonotactic knowledge, indicated by the difference in recall of nonwords with high versus low phonotactic probability, was an important predictor of vocabulary in both languages.