Standard Error (SE) Explained: Understanding Standard Deviation in Statistics

Learn about standard error, its role as the standard deviation of a sample, and how it measures the accuracy of a sample ...
Nature

Frozen section analysis of margins for head and neck tumor resections: reduction of sampling errors with a third histologic level

Negative margin status is an important predictor for local control and overall outcome in head and neck cancers. 1, 2, 3 Frozen section analysis is a useful tool for assessing margin status ...
Pew Research Center

Understanding error bars in charts

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Every survey finding published by Pew Research ...
Nature

Identification of proteomic biomarkers predicting prostate cancer aggressiveness and lethality despite biopsy-sampling error

Key challenges of biopsy-based determination of prostate cancer aggressiveness include tumour heterogeneity, biopsy-sampling error, and variations in biopsy interpretation. The resulting uncertainty ...