応用言語学の学術誌 Research Methods in Applied Linguistics に論文が掲載されました。
本研究は、タスク・ベースの言語教育(TBLT)において注目されている「Task Repetition(同じタスクを繰り返し行う活動)」に関する74本の実証研究を体系的にレビューしたものです。
分析の結果、タスク・リピティション研究には大きく2つの視点があることが明らかになりました。1つは「プランニング」の視点で、同じタスクでの即時的なパフォーマンス向上に焦点を当て、もう1つは「練習」の視点で、新しいタスクにも転移するスピーキング力の長期的な発達を重視するものです。
近年の研究は「練習」の視点へとシフトしつつありますが、両方の視点が重要です。本研究では、研究者が自身の立場を明確にし、研究デザインをその視点に合わせることの重要性を提言しています。
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Hanzawa, K., Suzuki, Y., Yanagisawa, A., & Fukuta, J. (2026). A scoping review of oral task repetition: Evolving concepts for speaking skills development. Research Methods in Applied Linguistics, 5(1), 100292.
Abstract
Over the past three decades, oral task repetition has been extensively investigated in second language acquisition (SLA) research. While this growing body of research is characterized by diverse conceptual and methodological foci, few reviews have systematically examined the relationship between them. Using a scoping review methodology—which aims to explore the breadth, depth, and nature of prior research—this paper synthesizes 74 empirical studies and maps the field’s conceptual landscape by analyzing the research questions (what aspects of task repetition have been studied and how researchers have operationalized their interests in oral task repetition) and related methodological features (how it has been studied). The analysis revealed four primary research domains: (1) task repetition effects, (2) additional interventions, (3) mediating/moderating variables, and (4) learner/teacher perceptions. Importantly, while many earlier works tended to frame task repetition as a “planning” tool for immediate performance gains on the same task, recent studies increasingly regard it as a form of “practice” for long-term speaking skills development, which can be transferred to new tasks. We argue that clarifying one’s position and aligning research methods with these perspectives can facilitate more refined research designs in future task repetition research.

