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| Kugle, C. L. | 1 |
| Marston, Paul T. | 1 |
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Kugle, C. L. – 1978
The possibility that "coder drift" may be a source of bias in classroom observation systems was investigated in two parallel experiments using the Flanders System of Interaction Analysis. Coder drift may be described as the differences in coding which result when observers create their own idiosyncratic systems of classifying teacher…
Descriptors: Behavior Rating Scales, Bias, Classroom Observation Techniques, Codification
Marston, Paul T.; And Others – 1978
The results of two experiments support the hypothesis of "coder drift" which is defined as change that takes place while trained coders are using a system for a number of classroom observation sessions. The coding system used was a modification of the low-inference Flanders System of Interaction Analysis which calls for assigning…
Descriptors: Behavior Rating Scales, Classroom Observation Techniques, Codification, Elementary Secondary Education
