One lesson is all you need? Stability of instructional quality across lessons.

One lesson is all you need? Stability of instructional quality across lessons.
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您只需要一堂课吗?

DOI:
10.1016/j.learninstruc.2013.12.002
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发表时间:
2014
影响因子:
6.2
通讯作者:
Klieme
Klieme
中科院分区:
教育学1区
文献类型:
--
作者:
Praetorius;Reusser;Rakoczy;Klieme

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观察员评分经常被用来衡量教学质量。然而,它们通常是基于在短时间内收集的观察结果。很少有研究试图确定这些时间是否足以提供可靠的教学质量的措施。运用概化理论,本研究探讨了(a)教学质量的三个维度--课堂管理、个人学习支持和学生的认知激活--在特定教师的课程之间如何变化,以及(B)每个教师需要多少节课才能建立足够可靠的这些维度的测量。分析是基于对38名教师的五节课的评分。课堂管理和个人学习支持是稳定的经验教训,而认知激活表现出很高的变异性。因此,每个教师一节课就足以衡量课堂管理和个人学习支持,而认知激活则需要九节课。推进我们的认知激活的理论理解的重要性进行了讨论。
Observer ratings are often used to measure instructional quality. They are, however, usually based on observations gathered over short periods of time. Few studies have attempted to determine whether these periods are sufficient to provide reliable measures of instructional quality. Using generalizability theory, this study investigates (a) how three dimensions of instructional quality – classroom management, personal learning support, and cognitive activation of students – vary between the lessons of a specific teacher, and (b) how many lessons per teacher are necessary to establish sufficiently reliable measures of these dimensions. Analyses are based on ratings of five lessons for 38 teachers. Classroom management and personal learning support were stable across lessons, whereas cognitive activation showed high variability. Consequently, one lesson per teacher suffices to measure classroom management and personal learning support, whereas nine lessons would be needed for cognitive activation. The importance of advancing our theoretical understanding of cognitive activation is discussed.
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