Pub Date : 2021-03-21DOI: 10.1080/15475441.2021.1876698
Titia Benders, J. StGeorge, R. Fletcher
ABSTRACT Although both fathers and mothers speak differently in infant-directed speech (IDS) compared to adult-directed speech (ADS), the acoustic characteristics of present-day paternal IDS are still insufficiently understood. To extend this understanding, 11 fathers and 17 mothers in The Netherlands were recorded interacting with their infant (260–476 days old; for IDS) and with an adult experimenter (for ADS). Both fathers and mothers were found to raise their average pitch, expand their pitch variability within utterance, and increase their pitch variability across utterances in IDS. Moreover, fathers increased their pitch variability within and across utterances more than mothers. The IDS produced by present-day Dutch-speaking fathers is thus acoustically highly dynamic, in line with fathers’ energetic interaction style.
{"title":"Infant-directed Speech by Dutch Fathers: Increased Pitch Variability within and across Utterances","authors":"Titia Benders, J. StGeorge, R. Fletcher","doi":"10.1080/15475441.2021.1876698","DOIUrl":"https://doi.org/10.1080/15475441.2021.1876698","url":null,"abstract":"ABSTRACT Although both fathers and mothers speak differently in infant-directed speech (IDS) compared to adult-directed speech (ADS), the acoustic characteristics of present-day paternal IDS are still insufficiently understood. To extend this understanding, 11 fathers and 17 mothers in The Netherlands were recorded interacting with their infant (260–476 days old; for IDS) and with an adult experimenter (for ADS). Both fathers and mothers were found to raise their average pitch, expand their pitch variability within utterance, and increase their pitch variability across utterances in IDS. Moreover, fathers increased their pitch variability within and across utterances more than mothers. The IDS produced by present-day Dutch-speaking fathers is thus acoustically highly dynamic, in line with fathers’ energetic interaction style.","PeriodicalId":46642,"journal":{"name":"Language Learning and Development","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83035749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"文学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-02-19DOI: 10.1080/15475441.2021.1876697
Carmen Saldana, Kenny Smith, S. Kirby, J. Culbertson
ABSTRACT Languages exhibit variation at all linguistic levels, from phonology, to the lexicon, to syntax. Importantly, that variation tends to be (at least partially) conditioned on some aspect of the social or linguistic context. When variation is unconditioned, language learners regularize it – removing some or all variants, or conditioning variant use on context. Previous studies using artificial language learning experiments have documented regularizing behavior in the learning of lexical, morphological, and syntactic variation. These studies implicitly assume that regularization reflects uniform mechanisms and processes across linguistic levels. However, studies on natural language learning and pidgin/creole formation suggest that morphological and syntactic variation may be treated differently. In particular, there is evidence that morphological variation may be more susceptible to regularization. Here we provide the first systematic comparison of the strength of regularization across these two linguistic levels. In line with previous studies, we find that the presence of a favored variant can induce different degrees of regularization. However, when input languages are carefully matched – with comparable initial variability, and no variant-specific biases – regularization can be comparable across morphology and word order. This is the case regardless of whether the task is explicitly communicative. Overall, our findings suggest an overarching regularizing mechanism at work, with apparent differences among levels likely due to differences in inherent complexity or variant-specific biases. Differences between production and encoding in our tasks further suggest this overarching mechanism is driven by production.
{"title":"Is Regularization Uniform across Linguistic Levels? Comparing Learning and Production of Unconditioned Probabilistic Variation in Morphology and Word Order","authors":"Carmen Saldana, Kenny Smith, S. Kirby, J. Culbertson","doi":"10.1080/15475441.2021.1876697","DOIUrl":"https://doi.org/10.1080/15475441.2021.1876697","url":null,"abstract":"ABSTRACT Languages exhibit variation at all linguistic levels, from phonology, to the lexicon, to syntax. Importantly, that variation tends to be (at least partially) conditioned on some aspect of the social or linguistic context. When variation is unconditioned, language learners regularize it – removing some or all variants, or conditioning variant use on context. Previous studies using artificial language learning experiments have documented regularizing behavior in the learning of lexical, morphological, and syntactic variation. These studies implicitly assume that regularization reflects uniform mechanisms and processes across linguistic levels. However, studies on natural language learning and pidgin/creole formation suggest that morphological and syntactic variation may be treated differently. In particular, there is evidence that morphological variation may be more susceptible to regularization. Here we provide the first systematic comparison of the strength of regularization across these two linguistic levels. In line with previous studies, we find that the presence of a favored variant can induce different degrees of regularization. However, when input languages are carefully matched – with comparable initial variability, and no variant-specific biases – regularization can be comparable across morphology and word order. This is the case regardless of whether the task is explicitly communicative. Overall, our findings suggest an overarching regularizing mechanism at work, with apparent differences among levels likely due to differences in inherent complexity or variant-specific biases. Differences between production and encoding in our tasks further suggest this overarching mechanism is driven by production.","PeriodicalId":46642,"journal":{"name":"Language Learning and Development","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79676176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"文学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-02-17DOI: 10.1080/15475441.2021.1875830
M. Garraffa, Francesca Smart, M. Obregón
ABSTRACT The present study investigated the effect of classroom-based syntactic training on children’s abilities to produce passive sentences. Thirty-three monolingual English children (mean age 5;2), were involved in passive-voice training based on storytelling sessions within a priming design. The training was delivered in a classroom setting, with two classes randomly allocated to either an active sentence or a passive sentence training structure. All children were individually tested at post-training. Children in the passive condition generated 3.6 more passives than the children in the active voice condition. Pre-training language and memory abilities, as measured by both grammatical level with a standardized sentence comprehension task (TROG-2) and a verbal working memory task (Digit Span), were unrelated to number of passives produced at post training. The study supports and expands recent evidence on the benefit of rich language exposure in the classroom context and on the quick dynamic adaptation of the implicit learning mechanisms to language exposure activities.
{"title":"Positive Effects of Passive Voice Exposure on Children’s Passive Production During a Classroom Story-telling Training","authors":"M. Garraffa, Francesca Smart, M. Obregón","doi":"10.1080/15475441.2021.1875830","DOIUrl":"https://doi.org/10.1080/15475441.2021.1875830","url":null,"abstract":"ABSTRACT The present study investigated the effect of classroom-based syntactic training on children’s abilities to produce passive sentences. Thirty-three monolingual English children (mean age 5;2), were involved in passive-voice training based on storytelling sessions within a priming design. The training was delivered in a classroom setting, with two classes randomly allocated to either an active sentence or a passive sentence training structure. All children were individually tested at post-training. Children in the passive condition generated 3.6 more passives than the children in the active voice condition. Pre-training language and memory abilities, as measured by both grammatical level with a standardized sentence comprehension task (TROG-2) and a verbal working memory task (Digit Span), were unrelated to number of passives produced at post training. The study supports and expands recent evidence on the benefit of rich language exposure in the classroom context and on the quick dynamic adaptation of the implicit learning mechanisms to language exposure activities.","PeriodicalId":46642,"journal":{"name":"Language Learning and Development","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83574457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"文学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-02-01DOI: 10.1080/15475441.2021.1876699
K. Shum, T. Au, L. Romo, Sun-Ah Jun
ABSTRACT Do learners of a second language (L2) need frequent contact with native speakers of that language in order to master its phonology? What if they hear audio recordings of native speakers and receive immediate corrective feedback about their perception? We used a randomized controlled experiment with 135 Chinese speakers (with English as their L2) to examine whether a high-variability perceptual training (HVPT) paradigm might enhance the perception of challenging contrasts between English voiced and voiceless stop consonants. Learners in all the age groups tested – middle childhood, early adolescence, and young adulthood – showed enhanced perception of English stop consonants after 20 five-minute training sessions conducted across 4 to 6 weeks, based on audio-recorded input coupled with corrective feedback. The training benefits were maintained at the one-month follow-up. Our results suggest that HVPT using audio-recordings of native speakers can be an affordable and useful language enrichment to supplement live interaction with native speakers, for L2 learners of a wide age range.
{"title":"Learning Challenging L2 Sounds Via Computer Training: High-Variability Perceptual Training for Children and Adults","authors":"K. Shum, T. Au, L. Romo, Sun-Ah Jun","doi":"10.1080/15475441.2021.1876699","DOIUrl":"https://doi.org/10.1080/15475441.2021.1876699","url":null,"abstract":"ABSTRACT Do learners of a second language (L2) need frequent contact with native speakers of that language in order to master its phonology? What if they hear audio recordings of native speakers and receive immediate corrective feedback about their perception? We used a randomized controlled experiment with 135 Chinese speakers (with English as their L2) to examine whether a high-variability perceptual training (HVPT) paradigm might enhance the perception of challenging contrasts between English voiced and voiceless stop consonants. Learners in all the age groups tested – middle childhood, early adolescence, and young adulthood – showed enhanced perception of English stop consonants after 20 five-minute training sessions conducted across 4 to 6 weeks, based on audio-recorded input coupled with corrective feedback. The training benefits were maintained at the one-month follow-up. Our results suggest that HVPT using audio-recordings of native speakers can be an affordable and useful language enrichment to supplement live interaction with native speakers, for L2 learners of a wide age range.","PeriodicalId":46642,"journal":{"name":"Language Learning and Development","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74032861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"文学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-31DOI: 10.1080/15475441.2021.1875832
A. Sultana
ABSTRACT Crosslinguistic research into language development reveals that typological features determine children’s developmental patterns to a large extent. The present study examines the early morphological development in the verb inflectional paradigm in Bangla. Data from the first 6 months since the emergence of two-word combinations were collected from a monolingual Bangla-speaking child. Emergence of individual inflectional markers and their error patterns were identified, and interpreted with references to a range of proposals and crosslinguistic findings. The results are of significance for building a developmental profile of typically-developing Bangla-speaking children as we all for measuring the levels of development in atypically-developing children.
{"title":"Early Verb Morphological Development of a Bangla-speaking Child","authors":"A. Sultana","doi":"10.1080/15475441.2021.1875832","DOIUrl":"https://doi.org/10.1080/15475441.2021.1875832","url":null,"abstract":"ABSTRACT Crosslinguistic research into language development reveals that typological features determine children’s developmental patterns to a large extent. The present study examines the early morphological development in the verb inflectional paradigm in Bangla. Data from the first 6 months since the emergence of two-word combinations were collected from a monolingual Bangla-speaking child. Emergence of individual inflectional markers and their error patterns were identified, and interpreted with references to a range of proposals and crosslinguistic findings. The results are of significance for building a developmental profile of typically-developing Bangla-speaking children as we all for measuring the levels of development in atypically-developing children.","PeriodicalId":46642,"journal":{"name":"Language Learning and Development","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81603528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"文学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-31DOI: 10.1080/15475441.2021.1875831
Jodie Smith, P. Levickis, S. Goldfeld, L. Kemp, Laura J Conway
ABSTRACT Specific features of adult linguistic input may play a larger, or smaller role, at different child ages, across different language outcomes, in different cohorts. This prospective, longitudinal study explored associations between the quantity and quality (i.e. diversity and responsiveness) of maternal linguistic input and child language. This study was derived from an Australian population-based intervention trial. Participants were mother–child dyads at risk of experiencing social adversity (n = 136). Home visits were conducted at 24 and 36 months. At the 24-month visit, mother–child free-play videos were collected. Seven aspects of maternal linguistic input were measured from videos: imitations, expansions, wh-questions, labels, word types, word tokens and mean length of utterance (MLU). Child language was assessed using a standardized measure at 36 months. Maternal MLU and imitations were associated with overall language and expressive vocabulary scores; wh-questions were associated with receptive language scores. By exploring quantity and quality, we can appreciate the differential contribution of adult linguistic input to early language abilities in different groups of children. Our findings highlight how imitations of early words/sounds and asking children wh-questions may foster expressive and receptive language development. These findings may be helpful to consider when selecting strategies for use in parent-implemented language promotion activities.
{"title":"Maternal Linguistic Input and Child Language in a Cohort at Risk of Experiencing Social Adversity","authors":"Jodie Smith, P. Levickis, S. Goldfeld, L. Kemp, Laura J Conway","doi":"10.1080/15475441.2021.1875831","DOIUrl":"https://doi.org/10.1080/15475441.2021.1875831","url":null,"abstract":"ABSTRACT Specific features of adult linguistic input may play a larger, or smaller role, at different child ages, across different language outcomes, in different cohorts. This prospective, longitudinal study explored associations between the quantity and quality (i.e. diversity and responsiveness) of maternal linguistic input and child language. This study was derived from an Australian population-based intervention trial. Participants were mother–child dyads at risk of experiencing social adversity (n = 136). Home visits were conducted at 24 and 36 months. At the 24-month visit, mother–child free-play videos were collected. Seven aspects of maternal linguistic input were measured from videos: imitations, expansions, wh-questions, labels, word types, word tokens and mean length of utterance (MLU). Child language was assessed using a standardized measure at 36 months. Maternal MLU and imitations were associated with overall language and expressive vocabulary scores; wh-questions were associated with receptive language scores. By exploring quantity and quality, we can appreciate the differential contribution of adult linguistic input to early language abilities in different groups of children. Our findings highlight how imitations of early words/sounds and asking children wh-questions may foster expressive and receptive language development. These findings may be helpful to consider when selecting strategies for use in parent-implemented language promotion activities.","PeriodicalId":46642,"journal":{"name":"Language Learning and Development","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82462897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"文学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-04DOI: 10.1080/15475441.2020.1855182
Mengru Han, Nivja H. de Jong, R. Kager
ABSTRACT Previous research indicates that infant-directed speech (IDS) is usually slower than adult-directed speech (ADS) and mothers prefer placing a focused word in isolation or utterance-final position in (English) IDS, which may benefit word learning. This study investigated the speaking rate and word position of IDS in two typologically-distinct languages: Dutch and Mandarin Chinese. We used a storybook-telling task to elicit semi-spontaneous ADS and IDS. The storybook contained target words that were familiar or unfamiliar to children. For each language, we asked: (1) whether IDS was slower than ADS; (2) whether mothers slowed down to highlight unfamiliar words; (3) whether the speaking rate of IDS changed between 18 and 24 months; and (4) whether mothers preferred placing unfamiliar words in isolation or utterance-final position in IDS. Results suggest that Dutch IDS, but not Mandarin Chinese IDS, was slower than ADS. Also, only Dutch mothers slowed down specifically when introducing unfamiliar words in IDS. In both languages, mothers placed target words in isolation (but not in utterance-final position) more frequently in IDS. These results suggest that the temporal modifications in IDS may vary across languages. Thus, language-specificity of IDS and its implications for language acquisition should be considered in future research.
{"title":"Language Specificity of Infant-directed Speech: Speaking Rate and Word Position in Word-learning Contexts","authors":"Mengru Han, Nivja H. de Jong, R. Kager","doi":"10.1080/15475441.2020.1855182","DOIUrl":"https://doi.org/10.1080/15475441.2020.1855182","url":null,"abstract":"ABSTRACT Previous research indicates that infant-directed speech (IDS) is usually slower than adult-directed speech (ADS) and mothers prefer placing a focused word in isolation or utterance-final position in (English) IDS, which may benefit word learning. This study investigated the speaking rate and word position of IDS in two typologically-distinct languages: Dutch and Mandarin Chinese. We used a storybook-telling task to elicit semi-spontaneous ADS and IDS. The storybook contained target words that were familiar or unfamiliar to children. For each language, we asked: (1) whether IDS was slower than ADS; (2) whether mothers slowed down to highlight unfamiliar words; (3) whether the speaking rate of IDS changed between 18 and 24 months; and (4) whether mothers preferred placing unfamiliar words in isolation or utterance-final position in IDS. Results suggest that Dutch IDS, but not Mandarin Chinese IDS, was slower than ADS. Also, only Dutch mothers slowed down specifically when introducing unfamiliar words in IDS. In both languages, mothers placed target words in isolation (but not in utterance-final position) more frequently in IDS. These results suggest that the temporal modifications in IDS may vary across languages. Thus, language-specificity of IDS and its implications for language acquisition should be considered in future research.","PeriodicalId":46642,"journal":{"name":"Language Learning and Development","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86774244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"文学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-02DOI: 10.1080/15475441.2021.1912899
P. Jusczyk, A. Pérez-Leroux
{"title":"Announcment of the Peter Jusczyk Best Paper Award","authors":"P. Jusczyk, A. Pérez-Leroux","doi":"10.1080/15475441.2021.1912899","DOIUrl":"https://doi.org/10.1080/15475441.2021.1912899","url":null,"abstract":"","PeriodicalId":46642,"journal":{"name":"Language Learning and Development","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90821021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"文学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-02DOI: 10.1080/15475441.2020.1863808
J. Grinstead, Ramón Padilla-Reyes, Melissa Nieves-Rivera
ABSTRACT A locus of the difference in meaning between distributive and collective sentences can be the quantifiers that modify their subjects. A current theoretical account of distributive and collective sentences claims that sentences with quantifiers such as the in English, or los in Spanish, in subject position and an indefinite direct object, modified by a in English, or una in Spanish, are ambiguous as to whether they are distributive or collective, all things being equal. In contrast, the same sentences with each/cada in subject position are unambiguously distributive. This account claims that sentences with quantifiers such as the/los in subject position come to be interpreted collectively, and not distributively, because the distributive meaning could more informatively be constructed using the unambiguous each/cada quantifier. This is the same neo-Gricean reasoning that accounts for the Quantity Implicature that arises for some, given the informativeness of all. On this account, collective and distributive interpretations are intrinsically linked, which predicts that even children’s non-adult-like collective and distributive interpretations should nonetheless be statistically associated, which we confirm in a sample of Puerto Rican Spanish-speaking children. We further propose that growth occurs both internal to lexical items, in terms of denotative content, as well as externally, within the lexicon in quantifier networks. Such networks have traditionally been expressed in formal semantics as pragmatic scales. We claim that the growth of both of these lexical dimensions are indexed by general lexical growth and show that a statistical association obtains between them in our sample.
{"title":"A Collective-Distributive Pragmatic Scale and the Developing Lexicon","authors":"J. Grinstead, Ramón Padilla-Reyes, Melissa Nieves-Rivera","doi":"10.1080/15475441.2020.1863808","DOIUrl":"https://doi.org/10.1080/15475441.2020.1863808","url":null,"abstract":"ABSTRACT A locus of the difference in meaning between distributive and collective sentences can be the quantifiers that modify their subjects. A current theoretical account of distributive and collective sentences claims that sentences with quantifiers such as the in English, or los in Spanish, in subject position and an indefinite direct object, modified by a in English, or una in Spanish, are ambiguous as to whether they are distributive or collective, all things being equal. In contrast, the same sentences with each/cada in subject position are unambiguously distributive. This account claims that sentences with quantifiers such as the/los in subject position come to be interpreted collectively, and not distributively, because the distributive meaning could more informatively be constructed using the unambiguous each/cada quantifier. This is the same neo-Gricean reasoning that accounts for the Quantity Implicature that arises for some, given the informativeness of all. On this account, collective and distributive interpretations are intrinsically linked, which predicts that even children’s non-adult-like collective and distributive interpretations should nonetheless be statistically associated, which we confirm in a sample of Puerto Rican Spanish-speaking children. We further propose that growth occurs both internal to lexical items, in terms of denotative content, as well as externally, within the lexicon in quantifier networks. Such networks have traditionally been expressed in formal semantics as pragmatic scales. We claim that the growth of both of these lexical dimensions are indexed by general lexical growth and show that a statistical association obtains between them in our sample.","PeriodicalId":46642,"journal":{"name":"Language Learning and Development","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87451834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"文学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Similar Federal Agency Programs, Policy., Global Affairs
{"title":"Acknowledgment of Reviewers","authors":"Similar Federal Agency Programs, Policy., Global Affairs","doi":"10.1089/jayao.2015.1502","DOIUrl":"https://doi.org/10.1089/jayao.2015.1502","url":null,"abstract":"","PeriodicalId":46642,"journal":{"name":"Language Learning and Development","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2021-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81416620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"文学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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