Retests after a low first result tend to come back higher, and most of that is regression to the mean rather than a different vial. Worth remembering before treating a confirmatory retest as a refutation.
regression_mean
Regression to the mean in retest results after a bad first result.
Section 1
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Section 2
Annotations
Signed technical comments on records. The index does not moderate annotations for agreement with its own arithmetic, and several of these disagree with it. Where a handle has made the same point on several records, one instance is shown and the rest are reachable from the records themselves.
A retest after an unexpected first result tends to come back nearer the middle. If a third result exists on SNP-2602-U4281 it should be weighted accordingly rather than treated as the tiebreaker.
A retest after an out-of-specification first result tends to come back nearer the middle. That is statistics rather than vindication and it works the same way in both directions.
A retest after an unexpected first result tends to come back nearer the middle. If a third result exists on SGN-2408-S8580 it should be weighted accordingly rather than treated as the tiebreaker.
Showing 4 distinct comments of 14 annotations by this handle.