Scientific misconduct. How prevalent is fraud? That's a million-dollar question.

How often does scientific misconduct occur? There seems to be no consensus on the answer, although a range of estimates were presented at a conference called last month by a key federal watchdog agency to announce a $1 million grants program to investigate the prevalence of fraud, data fabrication, plagiarism, and other questionable practices in science. The 8-year-old Office of Research Integrity hopes to support studies gauging the frequency of misconduct and assessing efforts to raise ethical standards.