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Medical Forum / General / Laboratory / March 2004Proficency Calculation
I'm calculating our internal manual diff proficency. The person who did it before me used +/- 2 SD for results. This leads to some big spreads on the acceptable ranges for passing the proficency. Is there another calculation that I can do to identify the outliers? I would like the make the ranges a bit more narrow but still keep it statistically relavent. I have a graph I use and you would be welcome to a copy... I only have it in paper form but would be happy to fax it to you. Shylirin > I'm calculating our internal manual diff proficency. The person who > did it before me used +/- 2 SD for results. This leads to some big > spreads on the acceptable ranges for passing the proficency. Is there > another calculation that I can do to identify the outliers? I would > like the make the ranges a bit more narrow but still keep it > statistically relavent. |
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