Dr. James McCaffrey presents a complete end-to-end demonstration of linear regression with two-way interactions between predictor variables. Standard linear regression predicts a single numeric value ...

Background Tobacco price is an important determinant of smoking behaviour. Using electronic point-of-sales (EPOS) data, this ...

Some older adults maintain exceptional memory and thinking skills well into late life, and a new study provides evidence that their brains may biologically age at a slower pace. Published in ...

Comparing the very luxury vehicles used by Detroit Three moguls to shuttle between their primary mansions and their up-north ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Materials scientists can learn a lot about a sample material by shooting lasers at it. With nonlinear optical microscopy—a ...

This is an underwater adventure like no other. And you don’t need a wetsuit or a snorkel to dive in. No need to hold your breath either. Because the ocean here isn’t made of water. It is a 180-degree ...

In middle-aged and older smokers with initially similar cognitive trajectories, smokers who quit subsequently had more ...