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

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

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Academic survey researchers tend to differ ...

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 ...

It’s in vogue these days to declare the building blocks of statistical inference irrelevant to assessing the performance of schools. For example, Joel Klein ...