具有不同可访问性需求和偏好的学生在"为所有人设计"MOOC中的表现
Alejandro Rodriguez-Ascaso1, Elisa M Molanes-López2, Jorge Pérez-Martín1
1Department of Artificial Intelligence, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain.
PloS one
|March 7, 2024
概括
大规模开放在线课程 (MOOCs) 可以为残疾学生改进. 从一开始就整合了可访问性,就像使用屏幕阅读器和字幕一样,在可访问的在线课程中显著提高了学习绩效.
科学领域:
- 教育技术的教育技术
- 人与计算机的交互
- 可访问性研究 可访问性研究
背景情况:
- 大规模开放式在线课程 (MOOCs) 对残疾学生来说存在重大可访问性障碍.
- 在MOOC设计,制作和交付中不考虑各种需求,导致可访问性和学习成果差.
- 现有的MOOC经常无法满足网络可访问性标准和通用设计学习原则.
研究的目的:
- 分析综合可访问性功能对残疾学生在所有MOOC设计中的学习成绩的影响.
- 在开放edX平台上评估WCAG 2.1合规性和学习通用设计原则的有效性.
- 确定学生的特定可访问性需求和偏好,以告知未来MOOC开发.
主要方法:
- 一个多层多重逻辑回归模型被应用到765名学生完成分级评估的数据上.
- 从一开始就纳入了可访问性支持,确保平台和资源符合WCAG 2.1.
- 通过咨询,建模方案和事先的研究,收集了学生的可访问性需求.
主要成果:
- 使用屏幕阅读器的学生表现出具有统计学意义的积极关联与良好表现 (OR = 13.482).
- 使用标题的学生也显示出与表现良好有显著的积极关联 (OR = 13.701).
- 与屏幕阅读器和标题用户相比,视力低下或非常低的学生表现出与良好表现的显著负面关联 (分别为OR = 26.817和OR = 27.254).
结论:
- 积极整合可访问性功能,如屏幕阅读器和字幕,显著提高了MOOC中的学习表现.
- 尽管整合了可访问性,但视力低下的学生面临着挑战,这表明需要进一步的有针对性的支持.
- 设计MOOC以学习的通用设计和WCAG 2.1合规性为公平的在线教育至关重要.
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