This study tests the Bottleneck Hypothesis (BH) that functional morphology presents the greatest difficulty in second language acquisition by examining Chinese English as a foreign language (EFL) learners' knowledge of both functional morphological properties and core syntactic properties across three language proficiency levels. Specifically,…

orInverse relations, or "trade-off effects," are a common outcome of interlanguage development: a learner may increase performance in one linguistic domain while simultaneously decreasing performance in another. In this study, we investigate the relationships between one aspect of fluency (pause usage) and two aspects of syntactic…

Grammar competition has been proposed as a model for second language (L2) acquisition. Variational Learning provides a framework within which to investigate the idea of grammar competition as the model requires a marriage of quantitative properties of the input with Universal Grammar. A diachronic variational model of grammar competition is…

This article addresses the benefits of audio-visual input for learning second language (L2) vocabulary and grammatical constructions. Specifically, it explores the role of frequency, the effects of subtitles and captions, and the mediating role of learner proficiency on language gains in two longitudinal studies. Study 1 targets vocabulary…

This article reports a study that aimed to find out whether F0 patterns of L2 English produced by Vietnamese speakers are different to those of native English speakers, whether the non-native F0 patterns are transferred from Vietnamese, and to what extent English and Vietnamese F0 profiles differ. Ten native/L1 Australian English speakers, 20…

This study investigates the role of orthography in German vowel production by Polish native speakers (L1) with German as a second language (L2). Eighteen intermediate to advanced Polish L2 German learners and 20 German native speakers were recorded during a picture-naming task in which half of the experimental items were explicitly marked in their…

The Bottleneck Hypothesis (Slabakova, 2008, 2013) proposes that acquiring properties of the functional morphology is the most challenging part of learning a second language. In the experiment presented here, the predictions of this hypothesis are tested in the second language (L2) English of Norwegian native speakers. Two constructions are…

The interaction between input frequency and constructional interference receives little attention in second language (L2) research. Two studies were conducted to test the effect of this interaction. Study 1 examined effects of both Zipfian frequency (ZF) and balanced frequency (BF) on L2 learning of English subject-extracted relative clauses…

This study investigates the acquisition of the Spanish Imperfect by 60 English learners of Spanish at three different proficiency levels (beginner, intermediate and advanced). Two oral production tasks and one interpretation task show that although the Imperfect is used from early on, the full array of interpretations associated with this form…

Recent findings (see, for example, Muñoz and Singleton, 2011) indicate that age of onset is not a strong determinant of instructed foreign language (FL) learners' achievement and that age is intricately connected with social and psychological factors shaping the learner's overall FL experience. The present study, accordingly, takes a…

In this article we focus on "false cognates", lexical items that have overlapping orthographic/phonological properties but little or no semantic overlap. False-cognate pairs were created from French (second language or L2) and English (first language or L1) items by manipulating the levels of morphological correspondence between them.…

This study investigates the role of previously acquired linguistic systems, Mazandarani and Persian, in the acquisition of third language (L3) English at the initial stages. The data have been obtained from 31 students (age 13-14 years), testing the placement of attributive possessives in a grammaticality judgment task, an element rearrangement…

This article identifies empirical evidence (Dao, 2007; in preparation) conflicting with Processability Theory's (PT) prediction that in acquisition of English as a second language (ESL), plural-marking emerges first in bare nouns and only later in numeric expressions. Specifically, it presents results from Dao's (2007) cross-sectional study of ESL…