Although wh-words generally stay in situ in Chinese wh-questions, they can be topicalized. However, the wh-topicalization is determined at the syntax-discourse interface and has to be governed by discourse conditions; only discourse-linked (D-linked) wh-words can be topicalized, but non-D-linked ones cannot. This article reports on an empirical study that investigated English speakers’ second language (L2) acquisition of Chinese wh-topicalization. The results of an acceptability judgment test indicate that advanced English speakers are sensitive to the discourse condition that governs the syntactic derivation of wh-topicalization in Chinese, as they were found to be able to make the distinction in their L2 Chinese by allowing D-linked, but not non-D-linked, wh-elements to topicalize. However, these results also indicate that wh-determiner phrases (DPs) and wh-noun phrases (NPs) differ in their sensitivity to presupposition background information in L2 Chinese wh-topicalization, and it is argued that the availability of the deictic feature in the wh-element involved is a variable affecting the D-linking properties of wh-elements in the development of L2 Chinese wh-topicalization, and this seems more likely to be a representational deficit than a processing problem.

Recently researchers have suggested that syntactic priming may facilitate the production of wh-questions with obligatory auxiliary verbs, particularly when learners are prompted to produce those questions with a wide variety of lexical items (McDonough & Kim, 2009; McDonough & Mackey, 2008). However, learners’ ability to benefit from syntactic priming materials with prompt-type frequency may be mediated by their ability to recognize patterns in aural input. The purpose of this replication study is to confirm the positive impact of prompt-type frequency on learners’ production of wh-questions reported by McDonough and Kim (2009), and to investigate whether its impact is mediated by learners’ auditory pattern-discrimination abilities. Thai learners (n = 43) of English as a foreign language (EFL) carried out three oral tests, two sets of syntactic priming activities, and an auditory pattern-discrimination test over a 4-week period. Half of the learners carried out the syntactic priming activities with low-type-frequency prompts, whereas the other learners received high-type-frequency prompts. The results revealed a significant interaction between Type Frequency × Auditory Pattern Discrimination on the immediate and delayed posttests. The findings are discussed in terms of the potential role of individual cognitive factors in mediating the relationship between syntactic priming and second language (L2) development.

This study analyzed phonological short-term memory (PSTM) and working memory (WM) and their relationship with vocabulary and grammar learning in an artificial foreign language. Nonword repetition, nonword recognition, and listening span were used as memory measures. Participants learned the singular forms of vocabulary for an artificial foreign language before being exposed to plural forms in sentence contexts. Participants were tested on their ability to induce the grammatical forms and to generalize the forms to novel utterances. Individual differences in final abilities in vocabulary and grammar correlated between 0.44 and 0.76, depending on the measure. Despite these strong associations, the results demonstrated significant independent effects of PSTM and WM on L2 vocabulary learning and on L2 grammar learning, some of which were mediated by vocabulary and some of which were direct effects.

Research has consistently shown there is a negative correlation between age of onset (AO) of acquisition and ultimate attainment (UA) of either pronunciation or grammar in a second language (L2). A few studies have indeed reported nativelike behavior in some postpuberty learners with respect to either phonetics/phonology or morphosyntax, a result that has sometimes been taken as evidence against the critical period hypothesis (CPH). However, in the few studies that have employed a wide range of linguistic tests and tasks, adult learners have not exhibited nativelike L2 proficiency across the board of measures, which, according to some, suggests that the hypothesis still holds. The present study investigated the relationship between AO and UA and the incidence of nativelikeness when measures of phonetic and grammatical intuition are combined. An additional aim was to investigate whether children and adults develop the L2 through fundamentally different brain mechanisms—namely, whether children acquire the language (more) implicitly as an interdependent whole, whereas adults learn it (more) explicitly as independent parts of a whole.

This study examined the componential structure of second-language (L2) speaking proficiency. Participants—181 L2 and 54 native speakers of Dutch—performed eight speaking tasks and six tasks tapping nine linguistic skills. Performance in the speaking tasks was rated on functional adequacy by a panel of judges and formed the dependent variable in subsequent analyses (structural equation modeling). The following independent variables were assessed separately: linguistic knowledge in two tests (vocabulary and grammar); linguistic processing skills (four reaction time measures obtained in three tasks: picture naming, delayed picture naming, and sentence building); and pronunciation skills (speech sounds, word stress, and intonation). All linguistic skills, with the exception of two articulation measures in the delayed picture naming task, were significantly and substantially related to functional adequacy of speaking, explaining 76% of the variance. This provides substantial evidence for a componential view of L2 speaking proficiency that consists of language-knowledge and language-processing components. The componential structure of speaking proficiency was almost identical for the 40% of participants at the lower and the 40% of participants at the higher end of the functional adequacy distribution (n = 73 each), which does not support Higgs and Clifford’s (1982) relative contribution model, predicting that, although L2 learners become more proficient over time, the relative weight of component skills may change.

This quasi-experimental study is aimed at (a) teaching learners how to provide corrective feedback (CF) during peer interaction and (b) assessing the effects of peer interaction and CF on second language (L2) development. Four university-level English classes in Japan participated (N = 167), each assigned to one of four treatment conditions. Of the two CF groups, one was taught to provide prompts and the other to provide recasts. A third group participated in only peer-interaction activities, and a fourth served as the control group. After one semester of intervention, the two CF groups improved in both overall accuracy and fluency, measured as unpruned and pruned speech rates, whereas the peer-interaction-only group outperformed the control group only on fluency measures. This study draws on monitoring in speech-production theory and the declarative-procedural model of skill-acquisition theory to interpret these results, thus contributing a new theoretical approach to CF research in the context of peer interaction in which learners can be providers of CF. It is concluded that whereas peer interaction offered opportunities for repeated production practice, facilitating proceduralization, CF sharpened learners’ ability to monitor both their own language production and that of their interlocutors.

Within the field of SLA, the incidence of nativelikeness in second language (L2) speakers has typically been explained as a function of age of acquisition. An alternative interpretation, however, is that L2 learners do not attain nativelike proficiency because of first language (L1) maintenance. This interpretation has nevertheless remained mostly theoretical due to the lack of empirical evidence. This study sets out to address the role of L1 proficiency in L2 ultimate attainment by examining L1 and L2 proficiency in 30 early L1 Spanish–L2 Swedish bilinguals. Language proficiency was assessed through grammaticality judgment tests and cloze tests, and additional data on language aptitude were collected through the Swansea Language Aptitude Test (v.2.0; Meara, Milton, & Lorenzo-Dus, 2002). The results showed positive correlations between nativelike L1 and L2 behavior. Additionally, it was found that language aptitude was positively correlated with nativelike L1 and L2 performance. In view of these findings, it is suggested that (a) L1 maintenance does not hamper L2 nativelikeness and (b) language aptitude is an important factor for bilingual ultimate attainment.

This study assessed knowledge of numerically quantified English sentences in two learner populations—second language (L2) learners and deaf learners—whose acquisition of English occurs under conditions of restricted access to the target language input. Under the experimental test conditions, interlanguage parallels were predicted to arise from acquisitional pressures imposed by derivational economy on universal grammar (UG)–guided semantic interpretation. The results of a task in which participants matched sentences to multiple discourse depictions confirmed the predicted parallels. However, in matching underinformative sentences to depicted contexts, the L2 and deaf learner groups overactivated discourse-pragmatic knowledge. The restriction of indefinite noun phrases to singleton indefinites and the cancellation of scalar implicatures rendered sentences more informative in underinformative contexts, producing incorrect—although principled—interpretations. These results inform English acquisition at the interface of semantics and discourse pragmatics and provide further support that economy pressures yield L2 learner and deaf learner interlanguage parallels as observed, for instance, in learners’ interpretative knowledge of universally quantified English sentences.

The artificial language learning paradigm was used to investigate to what extent the use of prosodic features is universally applicable or specifically language driven in learning an unfamiliar language, and how nonnative prosodic patterns can be learned. Listeners of unrelated languages—Dutch (n = 100) and Korean (n = 100)—participated. The words to be learned varied with prosodic cues: no prosody, fundamental frequency (F0) rise in initial and final position, final lengthening, and final lengthening plus F0 rise. Both listener groups performed well above chance level with the final lengthening cue, confirming its crosslinguistic use. As for final F0 rise, however, Dutch listeners did not use it until the second exposure session, whereas Korean listeners used it at initial exposure. Neither group used initial F0 rise. On the basis of these results, F0 and durational cues appear to be universal in the sense that they are used across languages for their universally applicable auditory-perceptual saliency, but how they are used is language specific and constrains the use of available prosodic cues in processing a nonnative language. A discussion on how these findings bear on theories of second language (L2) speech perception and learning is provided.

The purpose of this article is to offer contextual linguistic explanations for morphosyntactic deviances (MSDs) in high-level second language (L2) French (30 nonnative speakers vs. 10 native speakers). It is hypothesized that the distribution of formulaic sequences (FSs) and the complexity of information structure will influence the occurrence of MSDs. The study reports that MSDs rarely occur within FSs, and if they do, they occur within sequences containing open slots for creative rule application. The rhematic part of the utterance attracts more MSDs due to the fact that this part is more syntactically complex than the preamble (the thematic part). An additional explanation is the mean length of the rhematic part, which is longer than the preamble and implies a higher processing load. A final explanation of MSD occurrence in the rheme is linked to the distribution of FSs in the information structure. The results are discussed in relation to the ongoing debate on the constructs of complexity, accuracy, and fluency—a promising area of study.

The present study explores the relative efficacy of recasts over metalinguistic feedback on the learning of the English that-trace filter and how working memory capacity (WMC) is related to the extent to which learners can benefit from recasts and metalinguistic feedback. Fifty-four Korean English as a foreign language (EFL) learners from six intact classes at a university formed two experimental groups (recasts and metalinguistic feedback) and one control group and carried out two first language (L1) working memory (WM) span tasks (reading span and operation span tasks). The two experimental groups participated in two information gap activities over two treatment sessions, during which they were required to ask questions involving the that-trace filter and received corrective feedback (either recasts or metalinguistic feedback) on their erroneous utterances. Two dependent variable measures (a written production test and a grammaticality judgment test) were administered in each test session (pretest and immediate posttest). Results showed that recasts were as effective as metalinguistic feedback in facilitating the acquisition of the target construction. This may, to some extent, be attributable to the blocking of modified output opportunities specifically designed in this study to prevent modified output from playing a potential role as a confound. Also, individual differences in WMC significantly predicted, and thus mediated the effects of, recasts but not metalinguistic feedback, on the acquisition of the that-trace filter. This suggests that executive attention or attention control (considered as a critical component of WMC) is involved in the noticing of recasts, but not in the noticing of metalinguistic feedback.

Building on the cognitive and interactive perspectives of task research, the cognition hypothesis states that increasing task complexity promotes greater interaction and feedback and thus facilitates second language (L2) development (Robinson, 2001b, 2007a). To date, very little research has explored this claim during learner-learner interactions in English as a foreign language (EFL) classroom contexts in which a task-based syllabus is implemented. The purpose of this study was to examine the effects of task complexity on the occurrence of interaction-driven learning opportunities and question development in such a classroom context. Korean university students (N = 191) from four intact English classes were randomly assigned to one comparison group and three experimental groups with various task-complexity levels (i.e., simple, +complex, and ++complex) based on Robinson’s framework. Their interactions were audiorecorded, and occurrences of learning opportunities, operationalized as language-related episodes (LREs), were identified. Question development was identified between pretest and posttests on the basis of the learners’ stage advancement using Pienemann and Johnston’s (1987) developmental sequence. Results indicated that more complex tasks promoted a greater number of LREs and particularly led to LREs targeting developmentally advanced question structures, which result in question development.

Using the eye-movement monitoring technique in two reading comprehension experiments, this study investigated the timing of constraints on wh-dependencies (so-called island constraints) in first- and second-language (L1 and L2) sentence processing. The results show that both L1 and L2 speakers of English are sensitive to extraction islands during processing, suggesting that memory storage limitations affect L1 and L2 comprehenders in essentially the same way. Furthermore, these results show that the timing of island effects in L1 compared to L2 sentence comprehension is affected differently by the type of cue (semantic fit versus filled gaps) signaling whether dependency formation is possible at a potential gap site. Even though L1 English speakers showed immediate sensitivity to filled gaps but not to lack of semantic fit, proficient German-speaking learners of English as a L2 showed the opposite sensitivity pattern. This indicates that initial wh-dependency formation in L2 processing is based on semantic feature matching rather than being structurally mediated as in L1 comprehension.

The aims of the present study were twofold. The study addressed the issues of simultaneous attention to form and meaning in second language (L2) written input and reactivity of think-alouds. Specifically, the study examined the comprehension of L2 learners of Spanish who either attended to lexical or grammatical forms while reading for meaning or read for meaning alone. Learners completed these tasks while either thinking aloud or not. Results indicated only a minimal effect for thinking aloud that did not appear to compromise the internal validity of the study. Additionally, results showed that attending to grammatical or lexical form while reading for meaning did not affect comprehension. Indeed, learners who processed these forms more deeply evidenced greater comprehension. These findings are considered in light of methodological issues and the larger issue of simultaneous attention to form and meaning in a L2.

With Russian as the target language, a proof of concept study was undertaken to determine whether it is possible to identify linguistic features, control over which is implicated in progress on the Interagency Linguistic Roundtable (ILR) proficiency scale, thereby better to inform the instructional process. Following its development in an instrumentation study, a revised version of a computer-delivered battery of 33 perception and production tasks was administered to 68 participants—57 learners between levels 2 and 3 (21 at ILR 2, 18 at 2+, and 18 at 3) on the ILR scale, and 11 native speaker controls—whose proficiency was tested via an ILR oral proficiency telephone interview. The tasks sampled subjects’ control of Russian phonology, morphology, syntax, lexis, and collocations. Relationships between control of the linguistic features and the ILR levels of interest were assessed statistically. All 33 tasks, 18 of which assessed learners’ abilities in perception and 15 of which assessed their abilities in production, were found to differentiate ILR proficiency levels 2 and 3, and a subset was found to also distinguish levels 2 and 2+, and 2+ and 3. On the basis of the results, a checklist of linguistic features pegged to proficiency levels was produced that can be useful for syllabus designers, teachers, and learners themselves as well as providing the basis for future diagnostic tests.

This article reports on the design and use of a profiler for lexical sophistication (i.e., use of advanced vocabulary), which was created to assess the lexical richness of intermediate and advanced Swedish second language (L2) learners’ French and Italian. It discusses how teachers’ judgments (TJs) of word difficulty can contribute to the methodology for lexical profiling and compares two methods, one purely frequency based and one modified on the basis of TJs of word difficulty. It has been suggested elsewhere that factors other than frequency play an important role in vocabulary acquisition. Here it is argued that cognates and thematic vocabulary related to teaching materials, although infrequent in target language (TL) corpora, should not necessarily be considered advanced and that analyses of learners’ lexical sophistication would benefit from integrating these aspects. In this study, the frequency-based method normally used in lexical profiling was modified by recategorizing some low-frequency words considered easy by many teachers. On the basis of the TJs, a basic vocabulary, which consisted mainly of high-frequency words but also of cognates and thematic words, was defined, which was based on the fact that teachers judged certain low-frequency cognates and thematic words as relatively easy. Using the modified method, learners’ lexical profiles were found to be more homogeneous within groups of learners at specific proficiency levels. The superiority of the new method over the purely frequency-based one was shown when comparing effect sizes. It is argued that this method gives a more correct picture of advanced L2 lexical profiles.

Comprehensibility, a major concept in second language (L2) pronunciation research that denotes listeners’ perceptions of how easily they understand L2 speech, is central to interlocutors’ communicative success in real-world contexts. Although comprehensibility has been modeled in several L2 oral proficiency scales—for example, the Test of English as a Foreign Language (TOEFL) or the International English Language Testing System (IELTS)—shortcomings of existing scales (e.g., vague descriptors) reflect limited empirical evidence as to which linguistic aspects influence listeners’ judgments of L2 comprehensibility at different ability levels. To address this gap, a mixed-methods approach was used in the present study to gain a deeper understanding of the linguistic aspects underlying listeners’ L2 comprehensibility ratings. First, speech samples of 40 native French learners of English were analyzed using 19 quantitative speech measures, including segmental, suprasegmental, fluency, lexical, grammatical, and discourse-level variables. These measures were then correlated with 60 native English listeners’ scalar judgments of the speakers’ comprehensibility. Next, three English as a second language (ESL) teachers provided introspective reports on the linguistic aspects of speech that they attended to when judging L2 comprehensibility. Following data triangulation, five speech measures were identified that clearly distinguished between L2 learners at different comprehensibility levels. Lexical richness and fluency measures differentiated between low-level learners; grammatical and discourse-level measures differentiated between high-level learners; and word stress errors discriminated between learners of all levels.