• 말소리와 음성과학
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• 제15권1호
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• pp.47-54
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• 2023

This study attempted to test the hypothesis that Korean evaluators can score L2 speech appropriately, even when speech rate features are unavailable. Two perception experiments-preliminary and main-were conducted sequentially. The purpose of the preliminary experiment was to categorize English-as-a-foreign-language (EFL) speakers into two groups-advanced learners and lower-level learners-based on the proficiency scores given by five human raters. In the main experiment, a set of stimuli was prepared such that the speech rate of all data tokens was modified to have a uniform speech rate. Ten human evaluators were asked to score the stimulus tokens on a 5-point scale. These scores were statistically analyzed to determine whether there was a significant difference in utterance production between the two groups. The results of the preliminary experiment confirm that higher-proficiency learners speak faster than lower-proficiency learners. The results of the main experiment indicate that under controlled speech-rate conditions, human raters can appropriately assess learner proficiency, probably thanks to the linguistic features that the raters considered during the evaluation process.

• 영어어문교육
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• 제17권3호
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• pp.213-235
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• 2011

The aim of this study is to present preliminary results from an ongoing large-scale study of English-language future goal orientations held by Japanese university students. The work here involves an investigation of learners in multiple disciplines, from five universities, both public and private, in the Kanto-region of Japan, and their perspective on their future use of English. The results summarize written essays on L2-goal orientations. Preliminary results indicate Japanese learners (n = 629) as a whole have disparate L2-learning goals; however, these can be summarized into four broad categories: career, personal life, study, and general; and early findings indicate that most learners (63.56%) are oriented to career or personal goal orientations, while others are oriented to study and general. These early results help us to gain a better understanding of the future goals of Japanese university learners and their views of English usage in the future.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2018년도 추계학술발표대회
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• pp.313-316
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• 2018

In this paper, the authors reflect on how a lecturer's cross-cultural gestures affect learners from across cultures online and in the field teaching sessions for improving the service when to build an e-Learning system. The study extends to survey the way learners feel about cultural differences during a presentation from the research based on sociolinguistics research. Before starting a full-scale research, a preliminary study has been conducted to base the initial experiment, and analysis these result for main research.

• 대한음성학회지:말소리
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• 제65호
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• pp.13-36
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• 2008

This paper attempts to analyze the characteristics of Korean vowel production by 12 Korean native speakers and 36 adult learners. The analyses have been performed with investigations of F1and F2 values. Results showed that there's no significant difference between /ㅔ/ and /H/ and between /ㅗ/ and /ㅜ/ in Korean native speakers' pronunciations. The distinguishing tendencies found in the analyses of foreign learners' pronunciations are fronting and lowering of /ㅗ/ by English speakers, backing and heightening of /ㅓ/ by Japanese speakers and backing and lowering of /ㅏ/ by Chinese speakers. For the limitations of this paper, it has a meaning of a preliminary study and could be developed into further research to show the order of acquisition and L1 transference.

• 대한건축학회논문집:계획계
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• 제36권3호
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• pp.49-58
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• 2020

Based on Merrill's instructional theory, this study pursued to develop a demonstration-based architectural design class operation model for the 3^rd year undergraduate students taking a Spring semester design studio class. The model was designed and used particularly to improve architectural thinking abilities of under-motivated learners. Learning effects of the model were examined based on the preliminary data obtained for 3 consecutive years, 2017 through 2019. A total of 52 students were participated in the class and observed by the instructor. Once developed, the model has been continually updated and improved based on results of each class operation. Five types of demo. were used in the model. First, direct contacts of the instructor with under-motivated learners were turned out to be the most preferred demo(demo. 4), while watching and listening of the demo(demo.3) between the instructor and motivated learners taking place in class was ranked at the second place. Belief of under-motivated learners on the instructor as a professional should be highly valued for improving their architectural thinking abilities. Second, motivated peers' direct help for under-motivated ones was placed in the third rank. Social attitudes of under-motivated learners towards accepting motivated ones' helps were determined the particular demo's appropriateness. Third, a set of guidelines for operating the model in undergraduate design studio classes were developed and suggested.

• 컴퓨터교육학회논문지
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• 제10권6호
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• pp.11-18
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• 2007

본 논문에서 구현된 논리회로 가상실험실은 원리이해를 위한 개념학습실과 가상 디지털 키트에 의한 가상실험실의 두 단계로 설계하였다. 개념학습실에서 학습자는 디지털 논리회로에 대한 중요한 원리나 의미를 쉽게 이해할 수 있도록 하였다. 가상실험실에서는 가상 브레드보드에서 회로를 결선하여 입력전압을 인가하여 출력신호를 측정한 다음 가상실험데이터와 비교하여 서버로 전송한다. 가상실험실에서 수행된 모든 실험활동은 데이터베이스에 저장되어 개인정보와 함께 예비보고서의 형태로 제공되어 교수자는 학습자가 얼마나 회로동작에 대해 잘 이해하였는가를 점검할 수 있도록 하였다. 마지막으로 제안된 가상실험시스템의 유효성을 입증하기 위해 한 학기 동안 실험 중에 발생한 실제 장비의 파손율과 학생들의 성취도를 5개의 설문을 통해 조사하여 분석하였다.

• 한국콘텐츠학회논문지
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• 제17권7호
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• pp.101-112
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• 2017

본 연구의 목적은 학습자 중심 팀 기반 학습방법(Team Based Learning 이하tbl)이 예비간호학습자의 간호영어교과에서 경험과 효과를 확인 하고자 한다. 예비간호학습자 12명 대상으로 학습 결과 기록지, 학습관찰, 학습만족도, 학습자가 보고서, 동료평가서를 내용 분석하여 학습경험의 의미를 기술하였고 개인별, 팀별 점수는 빈도분석, 대응표본 T 검정을 통해 분석하였다. 연구결과는 1차, 2차 모두 개인별 점수보다 팀별 점수가 높았다. 협동이 잘되는 팀별 순위로 문제를 해결하였고 팀별 점수도 높았다. tbl학습 경험으로는 동료와 친밀감을 형성하며, 학습동기가 되고, 자율학습을 형성하며 학습이 용이해지고, 반복학습을 통해 어렵게 느꼈던 의학용어가 쉽게 암기되었다. 또한 팀끼리 시험을 봄으로 긴장감과 승부욕이 생기게 되어 성적향상에 도움이 된다고 하였고, 즐거운 학습시간으로 기억되었다고 하였다. 본 연구결과 예비학습자들에게 어렵게 접하는 간호영어 과목을 tbl을 통하여 학습동기를 유발하고 자율 학습을 유도하고 성적향상 및 동료와 친밀감이 형성됨을 알 수 있었다.

• 컴퓨터교육학회논문지
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• 제13권4호
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• pp.61-68
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• 2010

사람들은 인터넷 활동이 중독이라는 부정적 측면 때문에 교육적 활용을 자제하는 분위기가 형성되어 있다. 그러나 온라인 교육용 게임은 흥미 유발과 함께 학습자-교수자간의 원활한 상호작용을 끌어낼 수 있는 좋은 수업자료이고, 몰입과 관련한 선행 연구들에서는 인터넷이 주는 긍정적 측면을 검증했다. 온라인 교육용 게임이 개인별 학습 분야의 유용한 도구라는 점을 고려하면, 앞으로의 연구는 개별화에 초점을 맞춘 몰입 연구가 요구된다. 본 논문은 온라인 교육용 게임에서 개인의 인지양식에 따라 학습몰입 구성 요소들 간에 어떠한 차이를 보이는지 밝힌다.

• 말소리와 음성과학
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• 제6권3호
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• pp.91-99
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• 2014

Although it is well documented that patients with cochlear implant experience hearing difficulties when processing their first language, very little is known whether or not and to what extent cochlear implant patients recognize segments in a second language. This preliminary study examines how Korean learners of English identify English segments in a normal hearing and cochlear implant simulation conditions. Participants heard English vowels and consonants in the following three conditions: normal hearing condition, 12-channel noise vocoding with 0mm spectral shift, and 12-channel noise vocoding with 3mm spectral shift. Results confirmed that nonnative listeners could also retrieve spectral information from vocoded speech signal, as they recognized vowel features fairly accurately despite the vocoding. In contrast, the intelligibility of manner and place features of consonants was significantly decreased by vocoding. In addition, we found that spectral shift affected listeners' vowel recognition, probably because information regarding F1 is diminished by spectral shifting. Results suggest that patients with cochlear implant and normal hearing second language learners would experience different patterns of listening errors when processing their second language(s).

• 대한음성학회지:말소리
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• 제66호
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• pp.41-59
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• 2008

Knowledge in linguistic rhythm of the target language plays a major role in foreign language proficiency. This study attempts to discover valid rhythm features that can be utilized in automatic assessment of non-native English pronunciation. Eight previously proposed and two novel rhythm metrics are investigated with 360 English read speech tokens obtained from 27 Korean learners and 9 native speakers. It is found that some of the speech-rate normalized interval measures and above-word level metrics are effective enough to be further applied for automatic scoring as they are significantly correlated with speakers' proficiency levels. It is also shown that metrics need to be dynamically selected depending upon the structure of target sentences. Results from a preliminary auto-scoring experiment through a Multi Regression analysis suggest that appropriate control of unexpected input utterances is also desirable for better performance.