This article enters the debate about the complex and dynamical nature of second language acquisition (SLA) by discussing and commenting on Pallotti's critique of Complex Dynamic Systems Theory (CDST). Pallotti's critique brings to the fore the argument that, due to its anti-reductionist stance, CDST research fails to observe three fundamental…

The Processability Theory suggests that teachability and learn ability of a language is constrained by what learners are ready to acquire. This means that what is presented to the learners should be in line with their level and readiness. Textbooks are one of the fundamental resources of language learning and teaching, and in this sense, analyzing…

This study explores the extent to which the difficulty levels of grammar items in an English test can be predicted by the complexity of grammatical structures. The researchers carried out two sets of analyses. In the first analysis, the item facility and item discrimination indices of 175 multiple-choice items were examined. In the second…

The purpose of this study was to determine whether processability theory (PT; Pienemann, 1998, 2005) accounts for the emergence of grammatical forms and structures in comprehension. Sixty-one learners of English participated in oral interviews that elicited a variety of structures relevant to PT. Learners were divided into two groups: those who…

We respond here to Pienemann's critique of our study that appeared earlier this year in the Language Learning Special Issue entitled "Orders and Sequences in the Acquisition of L2 Morphosyntax, 40 Years On" and guest edited by Jan Hulstijn, Rod Ellis, and Søren Eskildsen. Pienemann objected to our claim that the Teachability Hypothesis…

We investigated the acquisition of Hindi split ergativity (zero or "-ne" marking) and Hindi differential object marking (DOM; zero or "-ko" marking) by L1 speakers of Dutch. Both grammatical phenomena are conditioned by multiple syntactic and semantic features. On a descriptive level, the study aims to examine when and how…

At the preschool level in Malaysia, all preschools, including those from public and private sectors are required to follow the guidelines stated in the National Preschool Standard-based Curriculum (NPSC) issued by the Ministry of Education (MOE) in 2017. However, the NPSC is very general and schools are not provided with any further guidance on…

This study takes a new look at the topic of developmental stages in the second language (L2) acquisition of morphosyntax by analysing receptive learner data, a language mode that has hitherto received very little attention within this strand of research (for a recent and rare study, see Spinner, 2013). Looking at both the receptive and productive…

This article suggests a method to deal with cross-linguistic differences in children with Specific Language Impairment. The differences in vulnerable structures reflect typological properties of the surrounding language (e.g., Leonard 2014a, 2014b). This article adds a developmental perspective to the discussion by interpreting the vulnerable…

When viewed through a generic, one-size-fits-all perspective, use of input enhancement does not appear effective. Through analysis of individual grammatical features and different learner proficiency levels, a significant impact may be revealed. To study the impact of input enhancement on diverse grammatical features, 16 short reading texts and…

The study intends to see the interlanguage morphological structure observed in communicative tasks of ten Indonesian learners of English as a Foreign Language. To achieve this purpose, Qualitative method with quantified data is employed in this study embracing the cross-sectional approach. The data are taken from the utterances produced by 10…

In this article I make the point that there has been a continuous focus on second language development in second language acquisition research for over 40 years and that there is clear empirical evidence for generalizable developmental patterns. I will both summarize some of the core assumptions of Processability Theory (PT) as an approach to…

Task-Based Language Teaching (TBLT) is purportedly the only L2 pedagogy rooted in SLA theory and research and is unique in its psycholinguistic, ecological and pedagogical validity. Theoretical entities such as Processability Theory (Pienemann & Lenzing, 2020), the cognitive-interactionist approach (Gass & Mackey, 2020), and emergentism…

This article contributes to typological plausibility of Processability Theory (PT) (Pienemann, 1998, 2005) by providing empirical data that show that the stages predicted by PT are followed in the second language (L2) acquisition of Spanish syntax and morphology. In the present article, the PT stages for L2 Spanish morphology and syntax are first…

Pienemann's Processability Theory (PT) predicts an order of emergence of morphosyntactic elements in second language (L2) production data. This research investigates whether the same order of emergence can be detected in L2 reception data, specifically, data from a timed audio grammaticality judgment task (GJT). The results from three related…