"When scientists say something cause autism, they mean that a factor directly leads to autism," Dr. Ash said. "But with most of the factors that have been studied, we're talking about correlation: ...

A comment posted by a reader on a recent post reprimanded me for suggesting that marijuana caused relationships to go bad. In this instance the reader was mistaken, as I had specifically used the word ...

CEO of Paul M. Wendee & Associates, LLC; Publisher of the Intrinsic Value Wealth Report Newsletter; Founder of the Value Driver Institute. In my opinion, reversion to the mean is one of the most ...

There's no causal link between taking acetaminophen and autism in an offspring, yet some studies point to a correlation. What does that mean? And who should parents listen to?

Joint mean-covariance regression modeling with unconstrained parametrization for continuous longitudinal data has provided statisticians and practitioners with a powerful analytical device. How to ...