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This study investigates the effect of two attention-enhancing techniques on L2 students' learning and processing of novel French words (i.e., target words) through video with L2 subtitles or captions. A combination of eye-movement data and vocabulary tests was gathered to study the effects of Type of Captioning (full or keyword captioning) and Test Announcement, realized by informing (intentional) or not informing (incidental) learners about upcoming vocabulary tests. The study adopted a betweensubjects design with two independent variables (Type of Captioning and Test Announcement) resulting in four experimental groups: full captioning, incidental; full captioning, intentional; keyword captioning, incidental; keyword captioning, intentional. Results indicated that learners in the keyword groups outperformed the other groups on the form recognition test. Analyses of learners' total fixation and second pass time on the target words revealed a significant interaction effect between Type of Captioning and Test Announcement. Results also suggest that second pass as well as total fixation duration and word learning positively correlated for learners in the full captioning, intentional group: The longer their fixations on a given word, the more likely correct recognition became. Results are discussed in relation to attention and word learning through video.

This article overviews current research on second language vocabulary learning. It concludes that a large vocabulary is necessary to function in English: 8000—9000 word families for reading, and perhaps as many as 5000—7000 families for oral discourse. In addition, a number of word knowledge aspects need to be learned about each lexical item. Taken together, this amounts to a substantial lexical learning challenge, one which many/most learners fail to meet. To facilitate adequate vocabulary learning, four vocabulary learning partners (students, teachers, materials writers, and researchers) need to contribute to the learning process. Vocabulary learning programs need to include both an explicit, intentional learning component and a component based around maximizing exposure and incidental learning. The four learning strands (meaning-focused input, meaning-focused output, language-focused learning, and fluency development) suggested by Nation (2001) provide a structure by which to integrate intentional and incidental vocabulary learning. The overriding principle for maximizing vocabulary learning is to increase the amount of engagement learners have with lexical items. All four learning partners need to acknowledge the incremental nature of vocabulary learning, and to develop learning programs which are principled, long-term, and which recognize the richness and scope of the lexical knowledge that needs to be mastered.

In recent years, the number of studies investigating the effectiveness of using digital games for incidental second language (L2) vocabulary learning has been rapidly increasing; however, there is still a lack of research identifying the factors that affect incidental L2 vocabulary learning. Hence, the current study examined vocabulary-related (word level, exposure frequency, salience) and learner-related (language proficiency, interest, viewing captions) variables and investigated factors affecting EFL students’ incidental vocabulary learning in the use of a vernacular (noneducational) murder mystery game (N = 59). The study employed a quantitative research method and descriptive and inferential statistics (repeated measures ANOVA and multiple linear regression). The results showed that playing the game greatly facilitated L2 vocabulary acquisition and retention. Among the vocabulary-related variables, the study found that only salience significantly influenced vocabulary acquisition. Regarding the learner-related variables, the students’ interest and viewing captions were positively related to vocabulary learning, whereas their language proficiency levels were negatively correlated. The study found that the students’ conscious attention, in conjunction with salience of the word, was the main facilitating factor in incidental vocabulary acquisition and retention in the game-enhanced language learning environment. The study suggested pedagogical implications for incidental vocabulary learning through game play based on the results of the study.

The present meta-analysis aimed to improve on Involvement Load Hypothesis (ILH) by incorporating it into a broader framework that predicts incidental vocabulary learning. Studies testing the ILH were systematically collected and 42 studies meeting our inclusion criteria were analyzed. The model-selection approach was used to determine the optimal statistical model (i.e., a set of predictor variables) that best predicts learning gains. Following previous findings, we investigated whether the prediction of the ILH improved by (a) examining the influence of each level of individual ILH components (need, search, and evaluation), (b) adopting optimal operationalization of the ILH components and test format grouping, and (c) including other empirically motivated variables. Results showed that the resulting models explained a greater variance in learning gains. Based on the models, we created incidental vocabulary learning formulas. Using these formulas, one can calculate the effectiveness index of activities to predict their relative effectiveness more accurately on incidental vocabulary learning.

Theories of learning and attention predict a positive relationship between reading times on unfamiliar words and their learning; however, empirical findings of contextual learning studies range from a strong positive relationship to no relationship. To test the conjecture that longer reading times may reflect different cognitive and metacognitive processes, the need to infer novel word meanings from context was deliberately manipulated. One hundred and two adult first– and second–language English language speakers read sixty passages containing pseudowords while their eye movements were recorded. The passages were either preceded or followed by pseudoword definitions. After reading, participants completed posttests of cued meaning recall and form recognition. Meaning recall was positively associated with (i) individual cumulative reading times and (ii) participants’ general vocabulary knowledge, but not when definitions were provided before reading. Form recognition was unaffected by cumulative reading times. Our findings call for a cautious approach in making causative links between eye–movement measures and vocabulary learning from reading.

Using eye tracking, this study examined L2 learners’ real-time processing of novel compounds across repeated exposures during reading. Sixty-one L2 speakers of Chinese read 12 stories over two days. Unbeknown to them, 12 novel compounds were embedded, each occurring six times. Growth curve analyses showed that semantic transparency, working memory capacity, and morphological awareness had no impact on fixation durations for the novel compounds. However, participants with a larger L2 vocabulary size processed novel opaque compounds significantly faster than those with a smaller L2 vocabulary size. For both transparent and opaque compounds, first fixation durations did not change across exposures, yet similar curvilinear decreasing patterns were found in gaze duration and total reading time, with the rates of decrease moderated by L2 vocabulary size and working memory capacity, respectively. Taken together, such findings provide converging evidence supporting the incidental nature of vocabulary learning through natural reading.

Recent studies have shown that watching videos with dual subtitles can promote vocabulary learning. This study investigated the extent to which vocabulary learning may be enhanced through repeated viewings of dual-subtitled videos. A 3x3 counterbalanced experimental design was adopted to examine English as a foreign language (EFL) learners’ immediate vocabulary gains and retention under different learning conditions across three experimental sessions, including (a) immediate repeated viewing, (b) spaced repeated viewing, and (c) no repeated viewing. Participants were 60 Chinese-speaking lower-intermediate university EFL learners. They were divided into three groups and given each of the three treatments in each experimental session. ANOVA results revealed that viewing dual-subtitled videos with repetition allowed learners to achieve greater vocabulary gains than viewing with no repetition, with evidence indicating the superiority of immediate repetitions over spaced repetitions.

As access to video-viewing technology has increased, so has researchers’ interest in understanding how the viewing of captioned and subtitled videos can lead to effective vocabulary learning outcomes. Previously, there has been one meta-analysis on the effects of this type of video-viewing on vocabulary acquisition. However, the variables investigated and types of vocabulary knowledge analyzed were limited. To address these issues, we conducted a mixed review that combined a scoping review and meta-analysis. We identified 139 studies in major databases, of which 34 aligned with our inclusion criteria. Results from the scoping review found that researchers have assessed productive knowledge more than receptive knowledge, and knowledge of form and meaning more than knowledge of use. Participants were given TV series to view more than any other media type. Results from the meta-analysis found that viewing any type of captioned or subtitled videos had a positive effect on vocabulary acquisition. Among all the captioned and subtitled video types, viewing videos with intralingual captions had the largest effect on vocabulary learning outcomes. Furthermore, the viewing of animations had the largest effect on vocabulary learning outcomes compared with all the other types of video viewing investigated. No statistically significant difference between intentional or incidental learning conditions was found, indicating that both conditions are suitable for developing vocabulary learning through video viewing. Additional findings and implications for teaching and research are discussed.

This study investigated how word meanings can be learned from natural story reading. Three experiments with adult participants compared naturalistic incidental learning with intentional learning of new meanings for familiar words, and examined the role of immediate tests in maintaining memory of new word meanings. In Experiment 1, participants learned new meanings for familiar words through incidental (story reading) and intentional (definition training task) conditions. Memory was tested with cued recall of meanings and multiple-choice meaning-to-word matching immediately and 24 h later. Results for both measures showed higher accuracy for intentional learning, which was also more time efficient than incidental learning. However, there was reasonably good learning from both methods, and items learned incidentally through stories appeared less susceptible to forgetting over 24 h. It was possible that retrieval practice at the immediate test may have aided learning and improved memory of new word meanings 24 h later, especially for the incidental story reading condition. Two preregistered experiments then examined the role of immediate testing in long-term retention of new meanings for familiar words. There was a strong testing effect for word meanings learned through intentional and incidental conditions (Experiment 2), which was non-significantly larger for items learned incidentally through stories. Both cued recall and multiple-choice tests were each individually sufficient to enhance retention compared to having no immediate test (Experiment 3), with a larger learning boost from multiple-choice. This research emphasises (i) the resilience of word meanings learned incidentally through stories and (ii) the key role that testing can play in boosting vocabulary learning from story reading.

The purpose of this study is to reexamine the effectiveness of vocabulary learning via mobile phones. Students (N=78) from two intact classes of sophomores at a Chinese university were assigned to two groups: the SMS group (the experimental group) and the paper group (the control group). Then, they were administered a pretest to identify the level of their prior vocabulary knowledge. The results revealed that there was no significant difference (p>.05) between the SMS group (Mean=33.34, SD=14.30) and the paper group (Mean=37.13, SD=15.21). Next, they were put into two intervention conditions. The SMS group studied a selected list of vocabulary via mobile phone SMS text messages while the paper group worked on the same list of vocabulary through paper material in a self-regulated manner. Results showed that there was a significant difference (p<.05) in the posttests but not in the delayed tests (p>.05) between the two groups. The study concludes that vocabulary learning through these two methods is effective in their own way and that a blended approach to vocabulary learning may better help increase the effectiveness from the perspective of sustained retention rates. Finally, the limitations of this study and suggestions for future studies are discussed. [PUBLICATION ABSTRACT]