Amaral and Roeper (this issue; henceforth A&R) argue that all speakers -- regardless of whether monolingual or bilingual -- have multiple grammars in their mental language representations. They further claim that this simple assumption can explain many things: optionality in second language (L2) language behaviour, multilingualism, language…

This article offers the author's commentary on the Multiple Grammars (MG) language acquisition theory proposed by Luiz Amaral and Tom Roeper in the present issue. Multiple Grammars advances the claim that optionality is a constitutive characteristic of any one grammar, with interlanguage grammars being perhaps the clearest examples of a…

Optionality is a central phenomenon in second language acquisition (SLA), for which any adequate theory must account. Amaral and Roeper (this issue; henceforth A&R) offer an appealing approach to it, using Roeper's Multiple Grammars Theory, which was created with first language in mind but which extends very naturally to SLA. They include…

This article offers the author's commentary on the Multiple Grammar (MG) language acquisition theory proposed by Luiz Amaral and Tom Roeper in the present issue and touches on other second language acquisition research. Topics discussed include the concept of second language (L2) optionality, a hypothesis regarding the acquisition of the…

This article examines the Multiple Grammars (MG) theory proposed by Luiz Amaral and Tom Roeper in the present issue and presents a critique of the research that went into the theory. Topics discussed include the allegation that the bilinguals and second language learners in the original article are primarily students in an academic setting, Amaral…

Lardiere (2003), in her reply to Lakshmanan and Selinker (2001), justifies the use of suppliance in obligatory contexts as a method of analysis in the investigation of the second language (L2) acquisition of past tense, and claims that such a method is characteristic of previous studies that have proposed the Aspect Hypothesis. It is argued here…

A discussion on the acquisition of morphology and syntax focuses on the following: (1) the problem of regularity in interlanguage (IL) morphology and syntax, (2) the contribution of universal grammar to second-language acquisition, and (3) variability in IL performance. An annotated bibliography is appended. (38 references) (GLR)

Assesses the contributions made by different approaches to interlanguage pragmatics as a subfield of second language acquisition. Discusses how four particular perspectives on pragmatic development relate to each other. (Author/VWL)

Research assumptions and procedures of two studies of interlanguage (IL) phonology are examined and criticized. In both studies, syllable structure is used as a primary variable, but opposing claims are made about "open" and "closed" IL syllable structure preference. It is argues that: (1) neither IL study considers sufficiently the phonetic…

Discusses dependence and frequency data in second language acquisition research and investigates the violation of the "independent observation" assumption as well as the effect of including interaction terms in frequency data analysis. Argues in favor of using multifactorial frequency data analyses over multiple chi-squares to take into account…

Responds to an article on top-down versus bottom-up analyses of interlanguage data in second language acquisition research that argues in favor of using multifactorial frequency data analyses over multiple chi-squares to take into account dependence and interaction of the frequency data. (Author/VWL)

Presents a research agenda in which the study of interlanguage becomes more central to the study of interlanguage pragmatics, assessing the state of acquisition research in interlanguage pragmatics, surveying work in interlanguage pragmatics that either directly examines or appeals to grammatical competence, showing how acquisition studies in…

The natural phonology theory, related to European structuralism, makes two fundamental assumptions: (1) phonemes are mental images of the sounds of language, and (2) phonological processes represent subconscious mental substitutions of one sound or class of sounds for another that are the natural response to the relative difficulties of sound…

Looks at recent research on learners' intake of a second language and concludes that second language research has inadequately explored the process of intake. Argues that both theory and the research derived from it need to develop consistent, well-defined models and methods for investigating language learners' processing of input. (SED)

Sample accepted findings on learners, environments, and interlanguages are proposed along with some implications for second-language acquisition theories. (79 references) (JL)