Fostering incidental vocabulary uptake from audio-visual materials: The role of text comprehension

<p>This research project explores various factors that may influence the rate of incidental foreign/second language (L2) vocabulary acquisition from audio-visual materials, with a special focus on procedures that enhance learners’ comprehension of these input materials. Informed by relevant theories and research findings in the fields of L2 listening comprehension and incidental vocabulary acquisition, I investigate the effects of having learners (a) view a TED Talks video twice rather than once, (b) sum up the content of the video before watching it a second time, (c) watch TED Talks videos on the same subject in order to increase familiarity with that subject, and (d) exchange summaries of TED Talks videos with peers so as to assist each other’s subsequent processing of those videos. As these interventions are all deemed to facilitate L2 listening comprehension, they are also expected to create favourable conditions for incidental vocabulary uptake to occur. The effects on incidental vocabulary acquisition of the above interventions were gauged in a series of classroom experiments with Vietnamese EFL learners. Although vocabulary uptake was generally far from spectacular, all of the tested procedures were found to result in statistically significant vocabulary gains. The insertion of the output tasks (i.e., the summary activities) was particularly useful. First, they helped to enhance the learners’ text comprehension. Second, they created opportunities for the learners to use newly met words and thus consolidate their knowledge of these lexical items. A thread through the experimental data is the strong association between the learners’ vocabulary uptake and their comprehension of the input content. The findings from this research project are consistent with several established notions, models and theories in the fields, including Ausubel’s Advance Organizer (1978), Hulstijn and Laufer’s Involvement Load Hypothesis (2001), Krashen’s Input Hypothesis (1985), Nation’s Vocabulary Generation (2013), Swain’s Output Hypothesis (2005), and Wittrock’s Model of Generative Teaching of Comprehension (1991). However, there are also findings that go beyond the core tenets of these, and that can further our understanding of how learners process new lexical items in meaning-focused input and output tasks. Regarding pedagogical implications, this research project confirms that fostering L2 listening comprehension creates favourable conditions for incidental vocabulary acquisition to happen, and that the aforementioned classroom procedures are facilitative in this regard, albeit to different degrees.</p>

Fostering incidental vocabulary uptake from audio-visual materials: The role of text comprehension

<p>This research project explores various factors that may influence the rate of incidental foreign/second language (L2) vocabulary acquisition from audio-visual materials, with a special focus on procedures that enhance learners’ comprehension of these input materials. Informed by relevant theories and research findings in the fields of L2 listening comprehension and incidental vocabulary acquisition, I investigate the effects of having learners (a) view a TED Talks video twice rather than once, (b) sum up the content of the video before watching it a second time, (c) watch TED Talks videos on the same subject in order to increase familiarity with that subject, and (d) exchange summaries of TED Talks videos with peers so as to assist each other’s subsequent processing of those videos. As these interventions are all deemed to facilitate L2 listening comprehension, they are also expected to create favourable conditions for incidental vocabulary uptake to occur. The effects on incidental vocabulary acquisition of the above interventions were gauged in a series of classroom experiments with Vietnamese EFL learners. Although vocabulary uptake was generally far from spectacular, all of the tested procedures were found to result in statistically significant vocabulary gains. The insertion of the output tasks (i.e., the summary activities) was particularly useful. First, they helped to enhance the learners’ text comprehension. Second, they created opportunities for the learners to use newly met words and thus consolidate their knowledge of these lexical items. A thread through the experimental data is the strong association between the learners’ vocabulary uptake and their comprehension of the input content. The findings from this research project are consistent with several established notions, models and theories in the fields, including Ausubel’s Advance Organizer (1978), Hulstijn and Laufer’s Involvement Load Hypothesis (2001), Krashen’s Input Hypothesis (1985), Nation’s Vocabulary Generation (2013), Swain’s Output Hypothesis (2005), and Wittrock’s Model of Generative Teaching of Comprehension (1991). However, there are also findings that go beyond the core tenets of these, and that can further our understanding of how learners process new lexical items in meaning-focused input and output tasks. Regarding pedagogical implications, this research project confirms that fostering L2 listening comprehension creates favourable conditions for incidental vocabulary acquisition to happen, and that the aforementioned classroom procedures are facilitative in this regard, albeit to different degrees.</p>

English language learning through viewing television: An investigation of comprehension, incidental vocabulary acquisition, lexical coverage, attitudes, and captions

<p>In the English as a Foreign Language (EFL) setting it may be a challenge to obtain the second language input necessary for language learning. A potential source of input may be episodes of television; however, little previous research has been done indicating whether episodes are a suitable source of aural input for EFL learning. Past research has concentrated on short videos of a type that learners might not choose to learn English from. The experimental design employed in this thesis expands upon earlier methodologies by employing full-length episodes of television intended for an English-speaking audience. The thesis is comprised of five studies investigating aspects of language learning through viewing television. The first study examines comprehension gains from the first to the tenth episode viewed, comprehension across 10 episodes viewed, and the effects of vocabulary knowledge on comprehension. The results showed significant comprehension gains from the first to the final episode viewed. Comprehension scores across the eight intervening episodes were all higher than the initial episode but scores were episode-dependent. The results also showed small to moderate correlations between vocabulary knowledge and comprehension for each of the 10 episodes. The second study investigated the effects of viewing over 7 hours of television on incidental vocabulary learning, and the effects of the frequency and range of occurrence of lower frequency words within the episodes on vocabulary learning. Two tests measuring knowledge of form-meaning connection at differing sensitivities were used to assess vocabulary knowledge. Results showed vocabulary gains of approximately six words on both tests. Frequency of occurrence was found to have a medium-size correlation with vocabulary gains. No significant relationship was found between range of occurrence and acquisition. The third study examined whether increased lexical coverage leads to increased comprehension of television and greater incidental vocabulary learning. Results showed that comprehension improved with increased lexical coverage for six of the 10 episodes. In these episodes, participants with approximately 94% lexical coverage were found to have higher comprehension scores than participants with less lexical coverage. Results showed no significant relationship between incidental vocabulary acquisition and lexical coverage. In the fourth study, two surveys examined language learners‟ attitudes towards learning English through viewing episodes of television. One survey followed each episode and examined learners‟ beliefs about: their enjoyment of the episode, the usefulness of studying English through viewing the episode, their level of learning from the episode, and their comprehension of the episode. For all items, mean responses were significantly higher following the final episode than following the first episode. On the survey that followed viewing all the episodes, participants had generally favorable attitudes towards language learning through viewing television. The fifth study investigated how the presence of captions affected the aspects of language learning examined in Studies 1 to 4. The most salient finding from this study was that the presence of captions improved comprehension for episodes early in the viewing process and for difficult episodes. Taken as a whole, this thesis shows the value of using episodes of television for language learning.</p>

English language learning through viewing television: An investigation of comprehension, incidental vocabulary acquisition, lexical coverage, attitudes, and captions

<p>In the English as a Foreign Language (EFL) setting it may be a challenge to obtain the second language input necessary for language learning. A potential source of input may be episodes of television; however, little previous research has been done indicating whether episodes are a suitable source of aural input for EFL learning. Past research has concentrated on short videos of a type that learners might not choose to learn English from. The experimental design employed in this thesis expands upon earlier methodologies by employing full-length episodes of television intended for an English-speaking audience. The thesis is comprised of five studies investigating aspects of language learning through viewing television. The first study examines comprehension gains from the first to the tenth episode viewed, comprehension across 10 episodes viewed, and the effects of vocabulary knowledge on comprehension. The results showed significant comprehension gains from the first to the final episode viewed. Comprehension scores across the eight intervening episodes were all higher than the initial episode but scores were episode-dependent. The results also showed small to moderate correlations between vocabulary knowledge and comprehension for each of the 10 episodes. The second study investigated the effects of viewing over 7 hours of television on incidental vocabulary learning, and the effects of the frequency and range of occurrence of lower frequency words within the episodes on vocabulary learning. Two tests measuring knowledge of form-meaning connection at differing sensitivities were used to assess vocabulary knowledge. Results showed vocabulary gains of approximately six words on both tests. Frequency of occurrence was found to have a medium-size correlation with vocabulary gains. No significant relationship was found between range of occurrence and acquisition. The third study examined whether increased lexical coverage leads to increased comprehension of television and greater incidental vocabulary learning. Results showed that comprehension improved with increased lexical coverage for six of the 10 episodes. In these episodes, participants with approximately 94% lexical coverage were found to have higher comprehension scores than participants with less lexical coverage. Results showed no significant relationship between incidental vocabulary acquisition and lexical coverage. In the fourth study, two surveys examined language learners‟ attitudes towards learning English through viewing episodes of television. One survey followed each episode and examined learners‟ beliefs about: their enjoyment of the episode, the usefulness of studying English through viewing the episode, their level of learning from the episode, and their comprehension of the episode. For all items, mean responses were significantly higher following the final episode than following the first episode. On the survey that followed viewing all the episodes, participants had generally favorable attitudes towards language learning through viewing television. The fifth study investigated how the presence of captions affected the aspects of language learning examined in Studies 1 to 4. The most salient finding from this study was that the presence of captions improved comprehension for episodes early in the viewing process and for difficult episodes. Taken as a whole, this thesis shows the value of using episodes of television for language learning.</p>

A Study on the Effects of Chinese EFL Learners’ English Proficiency and Involvement Load on Incidental Vocabulary Acquisition

The effects of EFL learners&rsquo; English proficiency and involvement load induced by tasks on incidental vocabulary acquisition are observed in this study. 163 students of non-English majors in a local university of China were divided into two groups of different English proficiency according to their scores of College English Test Band 4 (CET-4). The students in each group were randomly assigned one of three tasks (reading-for-comprehension, blank-filling, and writing) involving 10 target words. Fifteen minutes after they finished the task, they were required to take an immediate vocabulary test about the target words. Two weeks later, they were asked to take the same kind of vocabulary test to examine their delayed memory of the target words. All of the students did not know about the vocabulary tests beforehand. The results show that: in the process of immediate incidental vocabulary acquisition, both learners&rsquo; English proficiency and involvement load have a main effect on immediate memory, but the interactive effect of these two factors on incidental vocabulary acquisition is not significant; in the vocabulary retention test, learners&rsquo; English proficiency does not have a significant main effect on delayed memory, but the main effect of involvement load is still significant; at the same time, the interactive effect of these two factors is still not significant.