This study reports on a sentence processing experiment in second language (L2) French that looks for evidence of trace reactivation at clause edge and in the canonical object position in indirect object cleft sentences with complex embedding and cyclic movement. Reaction time (RT) asymmetries were examined among low (n = 20) and high (n = 20) intermediate L2 learners and native speakers (n = 15) of French in a picture-classification-during-reading task. The results show that a subgroup of learners (13 from the low intermediate and 9 from the high intermediate group) as well as the native speakers produced response patterns consistent with reactivation—with the shortest RTs for antecedent-matching probes presented concurrently with the gap—at clause edge, followed by a second reactivation in the canonical object position. This finding suggests that L2 learners may be able to process real-time input in nativelike ways, despite arguments set forth in previous research of this kind.

The high-variability training paradigm (multiple words, phonetic contexts, and talkers) has been successful for perceptual learning of tone contrasts. Here, it is extended to training native English listeners on Tokyo Japanese pitch-accent contrasts. Participants had no previous experience with lexically contrastive pitch patterns. They learned to identify three pitch patterns in disyllabic Japanese words: 1st-syllable accented, 2nd-syllable accented, and unaccented. Immediate feedback was provided to the training group but not to the control group. The results showed an effect of training on pitch-pattern identification accuracy that was also generalized to new words spoken in new contexts. In contrast, the control group improved only on the 1st-syllable accented pattern. Error analysis suggested that the unaccented pattern is the most difficult to identify. The results are discussed in terms of native language bias and individual bias affecting second language learning in the prosodic domain.

Given the importance of collocational knowledge for second language learning, how collocation learning can be facilitated is an important question. The present study examined the effects of three different practice schedules on collocation learning: node massed, collocation massed, and collocation spaced. In the node-massed schedule, three collocations for the same node verb were studied on the same day. In the collocation-massed schedule, three collocations for the same node verb were studied in different weeks. In the collocation-spaced schedule, participants encountered multiple collocations for the same node verb within a single day; at the same time, multiple collocations for the same node verb were repeated each week. To examine whether the knowledge of studied collocations could be transferred to unstudied collocations containing the same node, posttests included novel collocations that were not encountered during the treatment. Results suggested that the collocation-spaced schedule led to the largest gains for both studied and unstudied collocations.

This aptitude–treatment interaction study investigated the extent to which explicit and implicit cognitive abilities are differentially related to learning outcomes under two corrective feedback conditions. One hundred and thirteen intermediate English learners of Spanish were randomly assigned to an implicit feedback (recast), explicit feedback (explicit correction), or control group after completing tests from two aptitude batteries (High-Level Language Aptitude Battery [Hi-LAB] and LLAMA). Linguistic improvement on noun-adjective gender agreement and Differential Object Marking was assessed using grammaticality judgment and oral production tasks. Results showed that implicit but not explicit abilities were relevant for the acquisition of gender agreement under implicit feedback as measured by grammaticality judgments. In contrast, explicit but not implicit abilities were relevant for the acquisition of object marking under explicit feedback as measured by oral production. These results lent support to a double dissociation, but they also suggested higher-order interaction effects between the type of cognitive ability, outcome measure, and target structure.

This longitudinal study with time-serial data examines for the first time whether different types of intraindividual variation in second language (L2) performance and cognitive functioning are related, and how and when they influence L2 development longitudinally in older adulthood. We analyzed the L2 development of 26 German-speaking adults aged 62–79 who were taught L2 English for 2 × 90 minutes per week over 6 months. At each of the 15 measurements, the participants completed three L2 tasks and eight cognitive measures, and they answered open-ended questions about socioaffective variables such as L2 motivation. Results of generalized additive mixed models and qualitative content analyses showed, inter alia, that L2 variability—rather than inconsistency or dispersion—had a (nonlinear) effect on L2 growth, being especially large during periods of rapid development. The qualitative analyses revealed a blended operation of internal and external states being associated with periods of significant L2 growth.

Based on their longitudinal analysis of the acquisition of Dutch, English, French, and German, Klein and Perdue (1997) described a “basic learner variety” as valid cross-linguistically and comprising a limited number of shared syntactic patterns interacting with two types of constraints: (a) semantic—the NP whose referent has highest control comes first, and (b) pragmatic—the focus expression is in final position. These authors hypothesized that “the topic-focus structure also plays an important role in some other respects. . . . Thus, negation and (other) scope particles occur at the topic-focus boundary” (p. 318). This poses the problem of the interaction between the core organizational principles of the basic variety and optional items such as negative particles and scope particles, which semantically affect the whole or part of the utterance in which they occur. In this article, we test the validity of these authors' hypothesis for the acquisition of the additive scope particle also (and its translation equivalents). Our analysis is based on the European Science Foundation (ESF) data originally used to define the basic variety, but we also included some more advanced learner data from the same database. In doing so, we refer to the analyses of Dimroth and Klein (1996), which concern the interaction between scope particles and the part of the utterance they affect, and we make a distinction between maximal scope—that which is potentially affected by the particle—and the actual scope of a particle in relation to an utterance in a given discourse context.

The articles in this special issue present very interesting data on the acquisition of relative clauses (RCs) in Japanese, Korean, and Cantonese. The errors and developmental patterns are partially different from those that have been observed in European languages, and they appear to go against predictions made by the Keenan and Comrie (1977) noun phrase accessibility hierarchy (NPAH).

Typological linguistics has made important contributions to our understanding of SLA processes, especially in the early days of SLA research (e.g., Eckman, 1977; Hyltenstam, 1977; Rutherford, 1984). In particular, the noun phrase accessibility hierarchy (NPAH), originally proposed as a generalization based on typological work by Keenan and Comrie (1977), has served as a basis on which many SLA studies are conducted. The NPAH predicts the ease of relativization as a function of the grammatical role of the head noun phrase (NP) modified by the relative clause (RC) observed in languages of the world: subject (SU) > direct object (DO) > indirect object (IO) > oblique (OBL) > genitive (GEN) > object of comparison (OComp). If a language can relativize on a position on the hierarchy, then it follows that any other higher position (or position to the left in the given schematic) can also be relativized on. For example, if a language has an OComp relative (e.g., the man who I am taller than), then it has a GEN relative (e.g., the man whose father I know) and all of the others higher on the hierarchy (i.e., OBL, IO, DO, and SU).

This study explores the developmental pattern observed when Japanese adult learners acquire the locality condition on English reflexives. Experimental tasks were designed specifically to deal with the methodological problems of earlier research and then administered to Japanese learners of English at five proficiency levels (n = 411) as well as English and Japanese control groups (n = 40). Results from the learner groups indicate that the locality condition is acquired significantly better with sentences containing embedded that-clauses (type E-1) than with sentences containing embedded infinitival clauses (type E-2). This asymmetry exists even at beginning stages of learning and persists through later stages. For type E-2 clauses, there is an appreciable percentage of advanced learners (about 35% in this study) who failed to acquire the locality condition, which, I argue, is extremely difficult to account for within the UG models proposed thus far.

A growing consensus sees the bilingual lexicon as an integrated, nonselective system. However, the way bilingual experience shapes the architecture and functioning of the lexicon is not well understood. This study investigates bilingual lexical-semantic representation and processing employing written translation priming. We focus on the role of active exposure to and use of the second language (L2)—primarily operationalized as immersion. We tested 200 highly proficient Spanish–English bilinguals in two groups differing in their societal language (immersed vs. nonimmersed) and amount of L2 use. L2 proficiency was controlled across participants, allowing us to disentangle its effects from those of L2 use. Overall, however, the immersion’s impact on our data was minimal. This suggests a ceiling effect for the influence of active L2 use on bilingual lexical functioning when L2 development is maximal. The present data provide relevant insights into the nature of the bilingual lexicon, informing developmental models.

This report examines the potential impacts of task and proficiency on listener judgments of intelligibility, comprehensibility, and accentedness in L2 Spanish. This study extends Huensch and Nagle [Language Learning, 71, 626–668, (2021)], who explored the partial independence among the global speech dimensions for speech samples taken from a picture narrative task. Given that the type of speaking task used to elicit speech samples has been shown to impact the strength of the linguistic features contributing to the global speech dimensions and to explore the impact of task on the relationships among the dimensions, the current study followed the same procedure as Huensch and Nagle but employed a task in which participants responded to a prompt based on NCSSFL-ACTFL Can-Do Statements. The speech samples were elicited from instructed L2 Spanish learners of varying proficiency (n = 42) and were rated by a group of native-speaking Spanish listeners (n = 80) using Amazon Mechanical Turk. In general, the results were consistent with those reported in the initial study indicating a significant, positive, and consistent relationship between comprehensibility and intelligibility and a null relationship between accentedness and intelligibility. The limited differences between the studies’ findings are discussed considering the potential impact of task.

This article draws on an approach that conceptualizes L2 learning difficulty in terms of implicit and explicit knowledge. In a study with first language Mexican Spanish university-level learners (n = 30), their teachers (n = 11), and applied linguistics experts (n = 3), we investigated the relationship between (a) these groups’ difficulty judgements of 13 selected L2 English structures and (b) perceived learning difficulty and learners’ actual performance on measures of implicit and explicit knowledge. Our findings show that experts’ learning difficulty judgements did not lead to significant predictions, whereas the learners’ own difficulty rankings correlated significantly with their performance on the measure of explicit knowledge. Although correlations based on teachers’ difficulty rankings did not reach statistical significance, the judgements of this group were the only ones that showed trends toward successful prediction of learners’ performance on both the implicit and the explicit L2 measures. Thus the teachers exhibited a trend toward the best overall prediction ability.

This experimental study on the acquisition of the double-object construction in Spanish as a second language (L2) by a group of first language (L1) English adults investigates the role of Universal Grammar (UG) and its interaction with L1 in two modules of grammar: morphosyntax and semantics. The double-object construction in Spanish differs from its English counterpart in its morphosyntactic properties (case, clitic doubling, word order) and its semantics (interpretation of arguments and restrictions on the construction). Results show that L2 learners are sensitive to most of the morphosyntactic properties of the double-object construction but lag behind in the acquisition of its semantics. The experimental group shows evidence of UG-constrained acquisition in their sensitivity to morphosyntactic properties not instantiated in their L1 as well as in their nontarget but UG-licit analysis of the semantic restrictions of Spanish double objects. The dissociation between level of knowledge of morphosyntax and of semantics suggests that modularity of grammar is reflected in SLA exactly as it is in L1 acquisition.I am extremely grateful to Suzanne Flynn, Joyce Bruhn de Garavito, Andrew Stringfellow, Laura Colantoni, and Ana Teresa Pérez-Leroux for their generous assistance in terms of comments, encouragement, sharing of materials, and statistical analyses. I also want to thank the teachers and students that participated in the study as well as three anonymous SSLA reviewers for their useful comments and suggestions on earlier versions of this article.

In this paper we examine some aspects of second language referential communication in an experimental setting. The research method employed is an adapted version of a dyadic communication task originally devised by Krauss and Weinheimer (1964) and subsequently used in a long series of first language studies with anglophone children and adults. The task requires subjects, who are visually separated but allowed to converse freely, to reach agreement on the ordering of a set of abstract, non-conventional shapes over a number of trials. The learners appear to behave like native speakers in many ways: They can carry out the task successfully, they shorten references on repeated use, they need less time in subsequent trials, and most importantly, they tend to prefer to describe the shapes from an analogical perspective rather than from a literal one. The differences between learners and anglophone native speakers are mainly quantitative in nature. For instance, the learners need more time and more words for the task. Also, their final references tend to be longer and structurally more complex. However, the same was true for a comparable group of Dutch native speakers. Furthermore, one learner group showed behavior that was aberrant and could not be related to proficiency level.

Two questions are fundamental to research on second language learning in instructional settings: (1) Does second language instruction have a positive influence on acquisition? and (2) If so, what factors in instruction make a difference, how, and for whom? This paper considers theory and research on second language classroom behavior that is aimed toward answering the second question, given evidence that the answer to the first one is affirmative.

Theory suggests that the provision of comprehensible input, a focus on formal aspects of the target language, and the learner's opportunity to practice the target language, all may contribute to L2 development. Empirical research is reviewed to explore what modifications of teacher speech might influence comprehensibility, whether amount of exposure to target forms is related to learners' development, and which instructional behaviors might lead to productive practice with and knowledge about the target language.

This study tested the predictions of the revised hierarchical (RHM) and morphological decomposition (MDM) models with Arabic-English bilinguals. The RHM (Kroll & Stewart, 1994) predicts that the amount of activation of first language translation equivalents is negatively correlated with second language (L2) proficiency. The MDM (Frost, Forster, & Deutsch, 1997) claims that in nonconcatenative languages, including Arabic, activation spreads by morphological identity rather than orthographic similarity. To test these two models, native speakers of Arabic at two levels of English L2 proficiency completed a translation recognition task. In the critical conditions, the Arabic word was not the correct translation of the English word (shoulder-katif) but was orthographically related (shoulder-kahf “cave”), morphologically related but semantically opaque (shoulder-takaatuf “unity”), or semantically related (shoulder-raqaba “neck”). Results show more morphological- than orthographic-form interference for all participants, in line with the MDM. Contrary to the RHM, however, both proficiency groups experienced interference in the semantic condition as well as in the form conditions.