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Purpose: This study synthesized geometry interventions for students with Intellectual disabilities, learning difficulties, and learning disabilities. Method: This study analyzed 19 domestic or international publications, of which 9 were group studies and 10 were single case studies. The effect size of the group study was calculated as Hedges’ g, and the effect size of the single subject study was calculated as Tau-U. Results: As the results, the experimental studies showed that the overall effect size was 0.3934, showing a small effect size. Also, there was no significant differences in the effect size, according to moderators, grade, disability, intervention method, and intervenor. On the contrary, the overall effect size of single case studies was Tau-U=9.333, showing a high effect size. Moreover, there was a difference in effect size according to grade, disability, intervention method. However, there was no moderating effect, according to intervenor and duration. Conclusion: This study discussed and suggested that the effective geometry interventions for students with Intellectual disabilities, learning difficulties, and learning disabilities.
연구목적: 본 연구는 지적장애, 학습부진 및 학습장애 학생을 대상으로 실시한 도형학습에 관한 중재연구를 메타분석하여 그 효과크기를 살펴보는 데 목적이 있다. 연구방법: 메타분석을 위해 분석한 연구는 국내외에서 발간된 19편의 연구를 분석하였으며, 이 중 집단연구는 9편, 단일대상연구는 10편이었다. 집단연구의 효과크기는 Hedges’ g로 산출하였으며, 단일대상연구의 효과크기는 Tau-U로 산출하였다. 연구결과: 메타분석 결과, 집단연구의 전체 효과크기는 0.3934로 낮은 효과크기를 보이는 것으로 나타났으며, 학년, 장애유형, 중재방법, 중재자, 중재기간에 따라 효과크기의 차이는 나타나지 않았다. 단일대상 10편의 분석결과, 전체 효과크기는 Tau-U=9.333으로 높은 효과크기를 보였고, 초등학생과 중학생보다는 고등학생을 중재했을 때 더 높은 효과크기를 보였으며, 지적장애보다는 학습부진 및 장애를 중재했을 때 더 높은 효과크기를 보였다. 또한 중재방법에 있어서는 구체물 보조자료를 활용한 연구보다 컴퓨터 프로그램을 활용한 연구가 더 높은 효과크기를 보였다. 그러나 중재자와 중재기간에 따른 효과크기의 차이는 나타나지 않았다. 결론: 연구결과를 바탕으로 도형 중재를 위한 논의 및 제언을 제시하였다.
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