This article reports on three research studies, all of which concern second language task performance. The first focuses on planning, and compares on-line and strategic planning as well as task repetition. The second study examines the role of familiarity on task performance, and compares this with conventional strategic planning. The third study examines the effect on task performance of different types of post-task transcription. The three studies are also examined in relation to one another for the broader generalizations that they permit. These suggest that repetition can be stronger in its effects than on-line or strategic planning, but that planning is more potent in its effects than simply familiarity with the material being spoken about. In addition, what is termed supported on-line planning and post-task transcription are associated with less error in performance. The three studies are discussed in terms of the wider second language performance processes of complexifying, rehearsing and monitoring. These processes are linked to the Levelt model of speaking, and applied to the need to analyse tasks in a manner consistent with pedagogic goals.

This study investigates how second language (L2) fluency is influenced by two factors: Pre-task planning and content familiarity. Planning was adopted as a between-participant variable, combined with content familiarity as a within-participant variable, in a 2 × 2 split-plot factorial design. Nineteen measures of fluency phenomena, constituting eight categories, were used. Both planning and content familiarity were found to enhance fluency, but the positive effects of planning were stronger and noticeable on a wider range of measures. The availability of planning time also helped to compensate for lack of content familiarity. Implications for pedagogy and L2 fluency measurement are discussed.

Research and practice in task-based language teaching (TBLT) as a cognitively oriented second language (L2) pedagogy have grown substantially over the last three decades. A concurrent development in language education that thrives along the sociocultural paradigm, translanguaging, is also gaining great traction due to its potential in helping to form a holistic communicative repertoire among L2 learners. Despite their different theoretical underpinnings and ideological perspectives, TBLT and translanguaging share many common grounds that are worth exploring. This article argues that translanguaging offers a practical tool for improving L2 task-based performance, especially functional adequacy. Adopting translanguaging in TBLT would be beneficial for learners with a common first language background such as Chinese but lower affect as well as limited lexical and morpho-syntactic knowledge. Implications for L2 or foreign language education policies in the Great Bay Area of China and the implementation of translanguaging in the pre-, during-, and post-task phrases in a TBLT classroom in the region are discussed.

Although differentiating between fluency, accuracy and complexity, while assessing L2 task performance, is becoming a standard practice, lexical complexity as a distinctive area has received less attention in the task-based language teaching (TBLT) literature. This study re-examines previous frameworks of lexical complexity and investigates three lexical dimensions,lexical diversity, lexical sophisticationandlexical density, using a structured 2 × 2 × 2 split-plot experimental design. The participants were divided into a non-planning group and a planning group and each group was further dichotomised into two proficiency levels. Each participant was assigned one familiar and one unfamiliar oral narrative task. The results show that one’s prior knowledge about a subject is associated with higher lexical diversity and sophistication, while pre-task planning promotes lexical density. The effects of proficiency seem to be largely overridden by the effects of prior knowledge and pre-task planning and show little impact on overall lexical performance. Interestingly, lexical diversity and lexical sophistication are independent of each other, and lexical density is moderately correlated with both lexical diversity and lexical sophistication. The results are discussed with reference to the Levelt model of speech production with some pedagogical implications on content-based language instruction. The exploration of the relationships between the lexical measures reveals a need for deeper and subtler characterisation of L2 lexical complexity.

This comprehensive, forward-looking text is the first holistic research overview and practical methods guide for researching the role that affective and conative factors play in second language learners’ task performance and language acquisition. It provides a long overdue update on the role of the learner in task-based language teaching (TBLT). The book brings together theoretical background and major constructs, established and innovative methodological and technological tools, cutting-edge findings, and illuminating suggestions for future work. A group of expert scholars from around the world synthesize the state of the art, detail how to design and conduct empirical studies, and authoritatively set the agenda for future work in this critical, emerging area of language learning and instructional design. With a variety of helpful features like suggested research, discussion questions, and recommended further readings, this will be an invaluable resource to advanced students and researchers of second language acquisition, applied linguistics, psychology, education, and related areas.