The role that vocabulary learning plays in second language acquisition has been receiving increased attention from both teachers and researchers. However, there is still much that is not known about the processes through which new words become functioning components of the mental lexicon. This study used a word association test (WAT) to investigate how new words are initially integrated into the lexicon immediately after being studied for the first time. This initial lexical organization of new words was compared with the existing lexical organization of well-known items. In addition, this study investigated how sentence writing, thought to encourage deeper levels of processing, affected how the new words were initially integrated into the lexicon. The participants in this study were 16 volunteers from an Intensive English Language Program. The participants first completed a vocabulary knowledge scale to assess if they knew the new vocabulary words. Then, the participants spent 20 minutes learning the words--either through writing sentences with the words or through choosing their own method of study. Immediately after the 20 minute learning period, the WAT was administered. The results of the WAT indicated that the new words were being organized into the lexicon through meaning-based connections just as the well-known words were. The majority of the meaning-based lexical organization was based on equivalent meaning connections such as synonymy or superordination. The sentence writing condition correlated with a decrease in meaning-based WAT associations for the new words, which indicated that sentence writing may have affected the lexical integration in unexpected ways. Finally, unanticipated WAT response patterns indicated that other contextual factors may have also influenced the responses.

Lexical bundles (fixed sequences of three to four words) have been described as building blocks of discourse, both written and spoken (Biber & Barbieri, 2007), and as a useful mechanical device for creating writing that is suited for its academic field (Hyland, 2008). Having noticed that the academic theses of my students at Longdong University in Qingyang, China seemed very different from professional writing in their fields, I created a thesis project that addressed the question of how professionals in their fields were using bundles and how the learners' use of these bundles in terms of frequency, structure, and function varied from the professionals' use. In order to answer this question, I compiled four corpora of writing in literature and applied linguistics, representing professional and learner writing in each field. I used concordancing software in order to identify four-word lexical bundles that occurred at least 20 times per 100,000 words and over a range of four texts. I then did a three-part analysis which looked at frequency, structure, and function of these bundles. The results of the study reveal that professionals in applied linguistics and literature use bundles with different frequency, display different choices of lexical items to fill structural bundles, and use functional bundles differently. These differences seem to reflect the rhetorical needs of each discipline. Further, the learners in each field displayed differences in their use of bundles as compared to the professionals' use. Learners in applied linguistics used more types and tokens of bundles overall, while learners in literature used fewer. Both groups of learners relied more on repetitive use of certain bundles than did the professionals. Implications of this study are discussed for teaching and curriculum development. The findings can be applied to teaching through creating awareness-raising and guided practice opportunities for the students to see how bundles are used in professional writing and to help them apply this understanding to their own writing.

The purpose of this study was to determine the difference in the short term and and long term second language (L2) gains of first year Spanish students exposed to the Audiolingual Method (ALM) and the Natural Approach. The experiment consisted of two randomly selected groups which were exposed to four presentations. Two of these presentations delivered content material following a Natural Approach lesson design while the other two delivered content material following an ALM lesson design in such a way that both groups were exposed to two ALM lessons and two Natural Approach lessons. All subjects were pre-tested prior to the delivery of these lessons and subsequently tested after the first lessons for short term L2 gains. They were then re-tested after several weeks to measure long term L2 gains. The number of subjects that participated in the experiment was 249 and included all enrolled first year Spanish students at Oregon State University for the 1992 fall term. The data were analyzed using the two-way analysis of variance. The results of the investigation indicated that teaching method was not a significant factor in students' short term and long term L2 aquisition gains. The study thus implies that neither the Natural Approach nor the ALM can be considered superior in terms of quantifiable student gains and retention. Recommendations for further study are presented.

Research has focused on how the effects of different types of feedback vary as a function of the complexity of the linguistic targets and on the learning of inflectional features. However, few studies have investigated the learning of rule-based verb constructions. Grounded in the interactionist approach and usage-based theory, this study investigated the effects of corrective feedback on the acquisition of rule-based verb constructions among English-speaking learners of Chinese. Specifically, this study examined the effects of input-providing feedback and output-prompting feedback on the learning of two verb constructions. Data were drawn from 18 learners of Chinese from second-year Chinese classes in an American university. The participants were divided into two groups and took a pretest, treatment, and two posttests. Learners also filled out a questionnaire about their perception and preference of feedback types. Contrary to previous research, results indicated that both recasts and metalinguistic clues had positive effects on learners' learning of the target constructions. Moreover, learners of different proficiency preferred different types of feedback. The study results provided a categorization of verb constructions into four classes based on the rules that govern their formations and constraints that work on the constructions and identified stages learners moved through when learning verb constructions. The researcher proposed an instructional model of rule-based verb constructions. The model will help instructors recognize the stage the learners' are in and provide insight into how to help learners move to a higher stage by providing instruction, corrective feedback, and practice activities.

The Spanish subjunctive has been the focus of much SLA research, largely because it poses difficulties for learners of Spanish whose L1 is English (e.g., Collentine, 1993; Stokes & Krashen, 1990; Terrell et al., 1987). Investigating the same feature in heritage learners of Spanish can provide more information about their linguistic development and also has the potential to inform our knowledge of the acquisition of the subjunctive in traditional FL learners. The present study investigates whether heritage learners recognize grammatical and ungrammatical modal choice in volitional constructions. These constructions have been selected because this use of the subjunctive does not vary by a speaker's dialect or by belief about the idea being expressed. Furthermore, given that theories of language attrition posit that the structures that are acquired earliest are the last to be lost (e.g., De Bot & Weltens, 1991) and that Spanish monolingual children acquire the subjunctive in volitional constructions first (Blake, 1980; 1983), heritage learners who have experienced some language attrition may still have knowledge of this feature. To investigate the effect that language attrition or incomplete acquisition may have on this knowledge, I also compared the SHL learners in the sample who were early bilinguals in English (those born in the United States or who immigrated before age 6) with those who were late bilingual (those who immigrated between ages 6 and 13). Students enrolled in Spanish for Heritage Learners (SHL) and Spanish as a Foreign Language (SFL) courses at three universities in the Northeast completed grammaticality judgment (GJ) and editing tasks, which contained examples of correct and incorrect mood choices, as well as distracter items. The GJ task also required participants to explain their judgments. The results indicate that SHL learners outperform their SFL peers on recognizing correct mood selection. No significant differences were found between early and late bilinguals. SHL and SFL learners tended to correct utterances that they had rejected of judged neutrally but gave different types of reasons for accepting utterances. There were several similarities between early and late bilinguals in terms of their reasons for their judgments of utterances.

This dissertation investigates second language (L2) development in the domains of morphosyntax and semantics. Specifically, it examines the acquisition of definiteness and specificity in Russian within the Feature Re-assembly framework (Lardiere, 2009), according to which the hardest L2 learning task is not to reset parameters but to reconfigure, or remap features from the way they are assembled in the L1 into new formal configurations in the L2. Within the Feature Re-assembly approach, it has been argued that re-assembling features that are represented overtly in the L1 and mapping them onto those that are encoded covertly by context in the L2 will present a greater difficulty than re-assembling features in the opposite direction (Slabakova, 2009). This dissertation examines the acquisition of four linguistic properties (types of modifiers, word order, indefinite determiners and case marking) that encode definiteness and specificity overtly or covertly in L2 Russian by English and Korean speakers. The native languages of the learners were chosen specifically in order to test various overt-covert mappings. The data obtained from two experimental tasks (grammaticality and felicity judgments) completed by 56 Russian native speaker controls, 51 English- and 53 Korean-speaking learners support Slabakova's prediction that overt-to-covert realization of the feature is more challenging than covert-to-overt realization. In addition, the findings uncovered other important factors facilitating or impeding acquisition, such as the nature of the form-to-meaning mapping (one-to-one or one-to-many) and the availability of clear, unambiguous evidence for a certain mapping in the input available to learners. Results also reveal that the presence or absence of the L1 transfer depends on the overt/covert status of the feature in the L2. That is, when the feature is marked overtly in both the L1 and L2, L1 transfer has facilitative effect on the acquisition of the feature. On the contrary, when the feature is marked covertly in both the L1 and L2, L1 transfer has no or negative effects. These findings provide new insights into the effects of the native language on L2 learnability and enable us to come to a more precise and fine-grained understanding of grammatical meaning acquisition in the second language.

It has long been theorized that, after the so-called critical period has passed, acquiring language becomes a more difficult enterprise. While general differences between adult second language (L2) learners and normally developed child (L1) acquirers have been more or less empirically established, a strand of recent L2 accounts have focused on the specific locus of these differences. The main goal of this dissertation project is to test the predictions of one such account: Clahsen and Felser's Shallow Structure Hypothesis (SSH; Clahsen & Felser 2006a, 2006b). The SSH places emphasis on the empirical testing of native/non-native language processing asymmetries, which are argued to be due to less detailed L2 grammatical representations. This dissertation tests the predictions of the SSH using a long-distance dependency: Clitic Left Dislocation (CLLD) in L2 Spanish. The study includes on-line and an off-line tasks, which were completed by a control group of native speakers of Spanish and an experimental group constituted by L2 learners of Spanish whose first language was English. In view of the well-known fact that L2 learning outcomes vary widely across individuals, a secondary goal of this dissertation project is to determine whether variability in individual learning abilities, such as inhibitory control and statistical learning predicts variability in L2 learning. Part of L2 learning involves detecting the probabilistic patterns of a language (Saffran, Aslin, & Newport, 1996), such that individuals who are better pattern learners may be better able to learn the structural regularities of the L2 input. Results were analyzed in order to determine whether the predictions of the SSH could account for the patterns present in the data. These results suggest that although the acquisition of long-distance dependencies is a protracted process, both intermediate and advanced L2 learners of Spanish could anticipate (predict) a syntactic element based in previously occurring cues. Thus, these results fail to support the predictions of the SSH. In terms of individual differences, overall, neither statistical learning nor inhibitory control appear to modulate the on-line processing of this particular long-distance dependency in Spanish.

Part of the seemingly magical nature of study abroad programs is the imagined community of target language speakers that learners will be able to speak to and connect with, and whose culture they will be invited to join. Far too often, however, study abroad sojourners struggle to actually communicate in the second language (L2), therefore hindering their opportunities to connect with native speakers of the language. This phenomenon is especially salient in short-term study abroad programs where students may have little time for meaningful engagement in the complex activities of social, cultural, and linguistic acclimation. These difficulties are magnified when the increasingly popular short-term study abroad program is a "sheltered" or "island" program (Allen, 2010), in which students take classes designed by faculty at their home institution with peers with whom they share a first language. In response to this situation, this dissertation critically examines the willingness to communicate construct (MacIntyre, Dörnyei, Clément, & Noels, 1998) in the context of a short-term study abroad program in Valladolid, Spain with the goal of understanding why some students eagerly engage with the second language and culture, others do to a lesser degree, and some virtually not at all. This investigation employs a multiple case study approach utilizing ethnographic data collection methods and a sociocultural lens to analyze the construct of willingness to communicate. Data sources include interviews, journals, language contact reports, observations, proficiency assessments, and audio recordings from group activities designed to increase learners' willingness to communicate. Recursive, qualitative analysis of the experiences of three students suggests that experiences, goals, and motivations vary widely across students, and across time, even in just five weeks. Furthermore, analysis suggests that willingness to communicate in a study abroad context does not always align with previous research examining the construct in other settings. Pedagogical and implications for future study abroad program design to foster connections and communication in the target language are also explored.

The goal of this dissertation is to examine the ubiquitous challenge that adult second language speakers have in producing functional morphology, even at advanced stages of acquisition. Specifically, this study examines how native speakers of Spanish, Mandarin and Japanese use past tense and number morphology in English. To this aim, two current competing hypotheses are tested: the Interpretability Hypothesis, which states that certain aspects of syntactic knowledge (uninterpretable features) cannot be acquired after a critical period, resulting in target-deviant use of functional morphology, and the Prosodic Transfer Hypothesis, which claims that all aspects of syntax can be acquired, but that phonological transfer effects from the first language might be at the source of target-deviant use of functional morphology. Participants were selected according to a pre-established set of criteria in order to obtain similar linguistic profiles. Native speakers of American English also participated as controls. The experiments included proficiency tests, sentence completion tests and picture description tests. Group and individual results were analyzed in order to determine the extent to which the Interpretability Hypothesis and the Prosodic Transfer Hypothesis could account for the observed patterns. The results of the experiments in this study strongly suggest that phonological factors can account for some of the observed target-deviant use of functional morphology, supporting the Prosodic Transfer Hypothesis. The results also suggest that ultimate acquisition of new uninterpretable features is possible, supporting the Prosodic Transfer Hypothesis and not the Interpretability Hypothesis. The study also stresses the idea that although phonological transfer effects cannot account for all the problems observed in second language functional morphology, it is vital that phonological factors be taken into account.

Diss. Linköping : Linköpings universitet, 2006.