Check whether a biological measurement can be trusted
Use fictional controls to distinguish a sample result from a failed measurement.
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The Researcher · fictional example
The situation
A simulated enzyme assay gives a signal of 8 for a sample. A blank expected to have no reaction also gives 8; a reference expected to react gives 8. The Researcher is asked to report the sample as active.
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Starting knowledge: Complete 'Tell a biological effect from a changed condition' or understand comparison groups.
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