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Stallings, Jane A.; Giesen, Philip A. – 1977
Observer reliability and the confusability of codes, two sources of error in the collection of classroom observational data, are examined. Confusability is defined as the extent to which one code is mistakenly recorded as another code. Observational data were collected in each of 172 first grade and 171 third grade Follow Through and comparison…
Descriptors: Bias, Classroom Observation Techniques, Classroom Research, Codification
