How Often Should Measurement Be Evaluated

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The Answer is There is no simple rule to guide this decision. The decision partly depends on the complexity of the measurement procedures. If measurement involves observing only a single behavior that is clearly defined and easily detected, the data may not need to be assessed very often. On the other hand, if observers must detect multiple behaviors in multiple participants in a complex setting, it may be wise to evaluate the data fairly often. More frequent assessment may also be necessary when observers must also record the status of treatment conditions or behavior of individuals other than participants who are involved in key ways. The frequency with which data assessment is conducted also depends on what these evaluations reveal. That is, the better the assessment outcomes, the less often such assessments may need to be made. On the other hand, if assessment data show certain kinds of problems, it is best to be cautious and conduct assessment frequently.

How Often Should Measurement Be Evaluated

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