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Reference.org
Batch effect
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<p>In <a href="/facts/Molecular_biology/YgqU35ub">molecular biology</a>, a batch effect occurs when non-biological factors in an experiment cause changes in the data produced by the experiment. Such effects can lead to inaccurate conclusions when their causes are correlated with one or more outcomes of interest in an experiment. They are common in many types of <a href="/facts/High-throughput_sequencing/hsPsNCQW">high-throughput sequencing</a> experiments, including those using <a href="/facts/Microarray/LvJeNodc">microarrays</a>, <a href="/facts/Mass_spectrometer/RH5WBHJ2">mass spectrometers</a>, and <a href="/facts/Single-cell_RNA-sequencing/IfN72mpy">single-cell RNA-sequencing</a> data. They are most commonly discussed in the context of <a href="/facts/Genomics/pVU3BGpL">genomics</a> and high-throughput sequencing research, but they exist in other fields of science as well. </p>