Nice WSJ article on p-values

The Wall Street Journal has a brief but useful lay overview of the concept of statistical significance. Without mentioning them by name, it provides accurate synopses of some of the least understood aspects of clinical trial data (the related-but-quite-different concept of clinical significance and the problem of multiplicity). Although ostensibly about the US Supreme Court's refusal to accept statistical significance as a standard for public disclosure of adverse event reports in its recent Matrixx ruling, the article has broad applicability, and I'm always happy to see these concepts clearly articulated.