positive control

Expected outcome verifier

A positive control is an experimental condition designed to produce a known result, confirming that the test system is working properly.

If the positive control fails, the entire experiment is suspect.

In a drug trial testing a new antibiotic, a positive control might be a proven antibiotic that reliably kills the bacteria: The positive control showed expected bacterial death, validating our methodology.

Compare with negative control, which confirms the system produces no effect without intervention.

Related

reference standard · gold standard · variable · gene expression · assay · experimental design · validation · benchmarking · placebo · conditioning · hypothesis · diagnostic tool · standardization · monitoring · reward system · replication · feedback loop · corrective action

Opposites
experimental control type

positive controlnegative control

Baseline without treatment

coercive control · authoritarian control · negative reinforcement

sample status in experiment

positive controltest sample

unknown · specimen · analyte

Family

positive, positively, positiveness, positivity, posit, posited, positing, position, positioned

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