Ressegieu J C, Benson S J
J Biocommun. 1983 Mar;10(1):4-8.
Media producers generally urge health science instructors to plan television visuals that conform to accepted ideas of what is "good" for television. Experiments in a class of nursing students taught entirely by television tested whether learning was affected by differences in visual aspect ratio, color, and seeing the instructor on the screen. It was found that alterations in these characteristics did not affect performances on post-tests, but the students did have definite preferences in some areas.
媒体制作人通常敦促健康科学教师设计符合电视公认的“优质”理念的电视视觉效果。在一个完全由电视授课的护理专业班级中进行的实验，测试了学习是否会受到视频宽高比、颜色以及在屏幕上看到教师等方面差异的影响。结果发现，这些特征的改变并不影响课后测试的成绩，但学生们在某些方面确实有明确的偏好。
