vocabulary-learning
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- PaperBritish Journal of Educational Technology18 Jul 2026
Not a universal benefit: Examining the differential effects of emotional AI on L2 pre‐service teachers' language learning
Zhuo Wang, Hui Pang
A quasi-experimental study with 147 pre-service teachers found that emotional AI agents did not universally improve L2 vocabulary learning; lower-proficiency learners actually showed better attitudes and motivation with a regular (non-emotional) agent, possibly due to extraneous cognitive load from verbose emotional scaffolding. Qualitative analysis identified four learner archetypes—Constructive Inquirer, Demanding Critic, Attentive Pupil, Disengaged Bystander—that moderated the effects, challenging one-size-fits-all emotional design.
Original abstract
While emotional design in educational AI is often presented as a universal benefit, this study challenges that assumption, investigating when, for whom and how it impacts L2 vocabulary learning. This paper reports on the first phase of a larger project, analysing data from a quasi‐experimental study with 147 pre‐service teachers who interacted with either an emotional or a regular AI agent. Data included pre‐/post‐tests, questionnaires and complete AI chat histories. Quantitative analysis revealed no overall difference in vocabulary acquisition or other affective variables. A more nuanced pattern emerged in an exploratory subgroup analysis: contrary to prevailing assumptions, the regular agent—not the emotional one—preserved significantly better learning attitudes ( p = 0.001) and intrinsic motivation ( p = 0.038) for learners with lower baseline proficiency. A possible mechanism is suggested by a significant negative correlation between self‐reported cognitive load and vocabulary scores, found only in the emotional AI group: under high task difficulty, the emotional agent's verbose scaffolding may have added extraneous cognitive load rather than serving as a supportive buffer. We treat this correlational evidence as tentative rather than demonstrated. To explain these divergent outcomes, a qualitative analysis of interaction patterns identified four distinct learner archetypes—from the high‐agency ‘Constructive Inquirer’ to the passive ‘Attentive Pupil’. The findings indicate that the emotional AI's efficacy might be moderated by these profiles; its verbose emotional scaffolding may have added extraneous processing demands for the vulnerable ‘Attentive Pupil’ while being perceived as an inefficient frustration by the task‐oriented ‘Demanding Critic’. The study concludes that a one‐size‐fits‐all approach to emotional AI is suboptimal. Practitioner notes What is already known about this topic Emotional design in digital learning environments is widely considered beneficial for enhancing learner engagement, motivation and positive emotions. Affective AI systems are increasingly being developed for education with the goal of providing personalized and psychologically supportive instruction. Individual learner differences, such as prior knowledge, motivation and confidence, are known to be significant factors that impact the effectiveness of any educational intervention. What this paper adds This paper demonstrates that the benefits of emotional AI are not universal. Its efficacy is highly conditional, with the regular agent—not the emotional one—preserving better learning attitudes and motivation for lower‐proficiency learners under high cognitive load conditions. It tentatively provides a new explanatory framework of four learner archetypes (the Constructive Inquirer, Demanding Critic, Attentive Pupil and Disengaged Bystander) based on observable interaction patterns (agency and questioning effectiveness), which explains why different learners react divergently to the same AI design. It identifies a cognitive load threshold boundary condition: under high task difficulty, verbose emotional scaffolding may exceed learners' working' memory capacity and act as an extraneous processing burden rather than affective support, consistent with experimental evidence on the moderating role of task difficulty in emotional design. It reveals a potential design tension: emotional support is not uniformly beneficial—verbose affective scaffolding intended to help a passive learner (the ‘Attentive Pupil’) may instead add extraneous cognitive load under demanding tasks, while being perceived as an inefficient frustration by a high‐agency, task‐oriented learner (the ‘Demanding Critic’). Implications for practice and/or policy The design and implementation of educational AI must move beyond a ‘one‐size‐fits‐all’ model. Practitioners should select and advocate for tools that can adapt their emotional persona based on user needs, rather than applying
- PaperLanguage Teaching Research1 Jul 2026
Gamified Language Learning: The Impact of Role-Playing Games on Beginner Japanese Acquisition
Yi-Fan Wang, Mei-Hua Hsu, Max Yue-Feng Wang
Examined the effectiveness of Nihongo Quest, a theory-driven role-playing game for beginner Japanese learners, in an eight-week quasi-experimental study. Game-based learning significantly outperformed textbook instruction on vocabulary and grammar gains, and boosted intrinsic motivation while reducing anxiety. The game's design aligned with SLA frameworks (IIO, SDT, WTC, SCT) and integrated multimodal literacy tasks.
Original abstract
This study examined the effectiveness of Nihongo Quest, a theory-driven role-playing game (RPG) developed for beginner learners of Japanese. Sixty undergraduate students participated in an eight-week quasi-experimental study comparing a game-based learning (GBL) condition with a traditional textbook-based condition. Results indicated that participants in the GBL group demonstrated significantly greater gains in vocabulary ( d = 1.45) and grammar ( d = 1.05) than those in the textbook group. In addition, the GBL group reported higher levels of intrinsic motivation ( η ² = .25) and lower levels of language learning anxiety ( η ² = .16). These outcomes are attributed to the game’s systematic alignment with core second language acquisition (SLA) frameworks, including the input–interaction–output (IIO), self-determination theory (SDT), willingness to communicate (WTC), and sociocultural theory (SCT). Through the integration of multimodal literacy tasks, interactive dialogues, and culturally situated scenarios, Nihongo Quest reduced cognitive load while supporting both linguistic and pragmatic development. The findings suggest that theory-informed RPG-based instruction can effectively enhance beginner-level Japanese language acquisition and offer a transferable instructional design model for other complex-script languages, such as Chinese and Korean.
- PaperComputer Assisted Language Learning29 Jun 2026
Keyword captions enhance intentional L2 vocabulary phonological learning and video comprehension: evidence from Japanese learners of Chinese
Xiaomei Su, Taohui Li, Xiaohan Zhen, Ying Huang et al.
A study with Japanese learners of Chinese found that keyword captions improve intentional L2 vocabulary phonological learning and video comprehension.
- PaperELT Journal4 Jun 2026
Engaging adolescent learners in TESOL research
Asier Calzada, Agurtzane Azkarai
Examined EFL high school students acting as co-researchers in a TESOL project, finding they perceived technology integration as enhancing vocabulary learning and motivation. Students found the methodology manageable but struggled with sourcing literature, and expressed hope the project would benefit their future studies.
Original abstract
In the past years there have been calls in language education to engage in more inclusive research practices that also treat research subjects as co-researchers. This article focuses on a group of EFL learners who acted as researchers and developed a TESOL research project as part of their high school education. The present study describes their journey through this process, examining their initial beliefs towards research in TESOL and meaningful learning tasks, alongside their general opinions regarding this project. The findings indicated that these student researchers perceived the integration of technology into pedagogical tasks as a way to enhance EFL vocabulary learning and motivation. They considered the methodological part of the project manageable but reported difficulties in sourcing relevant literature. Overall, they were hopeful that their project would benefit other students and become an asset in their future studies.