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    Help deciding what stats to run in SAS to determine effect of Obs bias on Group Size

    Hello, I'm trying to determine if the observer group size of a study ( 1, 2, 3) and experience of the observer impacts the potential for observer bias ( Type 1 and 2 errors) when conducting auditory surveys. I'm going to analyze my data is SAS 9.3 and was hoping people would have some advice...