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Karweit, Nancy; Slavin, Robert E. – American Educational Research Journal, 1981
The consequences of using alternative measures of time and achievement are examined in an observational study of 18 elementary school classes. The extent to which choice of the same model linking time and learning for all students was implicated in the inconsistent results is examined. (Author/GK)
Descriptors: Academic Achievement, Classroom Observation Techniques, Classroom Research, Elementary Education