그림과 작업기억력이 영어어휘습득에 미치는 영향 = The Interplay of Pictures and Working Memory Capacity in Word Acquisition of EFL Korean Children

다국어 초록 (Multilingual Abstract)

Two experiments were conducted in order to explore the effects of pictures and working memory capacity on vocabulary learning of Korean children who learn English as a foreign language (EFL). In Experiment 1, one hundred and five 6th graders were assigned to two groups and were exposed four times to their corresponding experimental materials: (i) English words + meanings and (ii) English words + meanings + congruent pictures. The results showed that the main effect of picture did not reach statistical significance and that the main effect of working memory capacity was statistically and practically significant (p < .001, Cohen’s d = 1.699). No significant interaction between picture and working memory capacity was observed. Experiment 2 replicated Experiment 1 with a different group of learners (eighty-eight 6th graders) and different exposure frequency (eight times). The results indicated significant interaction of picture and working memory capacity, meaning that only learners with high working memory capacity benefitted significantly from pictures with increasing exposure frequency, whereas those with low working memory span did not reap as much benefit. The findings have important bearings on EFL vocabulary pedagogy within the context of intentional vocabulary teaching and learning.

목차 (Table of Contents)

• I. 서론 1
• 1.1 연구배경 1
• II. 선행연구 4
• 2.1 그림과 어휘습득 4
• 2.2 작업기억력 7
• 2.2.1 작업기억력 7
• 2.2.2 작업기억력과 어휘습득 11
• III. 연구질문 및 가설 12
• IV. 실험1 및 실험2 13
• 4.1 실험1 14
• 4.1.1 실험방법 14
• 4.1.1.1 참여자 14
• 4.1.1.2 실험도구 14
• 4.1.1.2.1 두 유형의 파워포인트 슬라이드 15
• 4.1.1.2.2 영어어휘테스트 16
• 4.1.1.2.3 Backward Digit Span Test 16
• 4.1.1.3 데이터 수집 절차 16
• 4.1.1.4 영어어휘테스트 채점 17
• 4.1.2 실험1의 결과 17
• 4.1.2.1 연구질문1: 그림이 영어어휘습득에 미치는 영향 17
• 4.1.2.2 연구질문2: 작업기억력이 영어어휘습득에 미치는 영향 19
• 4.1.2.3 연구질문3: 그림과 작업기억력의 상호작용 19
• 4.2 실험2 20
• 4.2.1 실험방법 22
• 4.2.2 실험2의 결과 22
• 4.2.2.1 연구질문1: 그림이 영어어휘습득에 미치는 영향 22
• 4.2.2.2 연구질문2: 작업기억력이 영어어휘습득에 미치는 영향 23
• 4.2.2.3 연구질문3: 그림과 작업기억력의 상호작용 24
• V. 논의, 교육적 함의, 그리고 연구의 제한점 25
• 참고문헌 29
• 영문초록 32
• 부 록 33