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Robert Schoen; Lanrong Li; Xiaotong Yang; Ahmet Guven; Claire Riddell – Society for Research on Educational Effectiveness, 2021
Many classroom-observation instruments have been developed (e.g., Gleason et al., 2017; Nava et al., 2019; Sawada et al., 2002), but a very small number of studies published in refereed journals have rigorously examined the quality of the ratings and the instrument using measurement models. For example, Gleason et al. developed a mathematics…
Descriptors: Item Response Theory, Models, Measurement, Mathematics Instruction