Quick: How many people did you see on the way home from work the other day? Was it more or less than the day before? Regardless of your answer, it's likely you can't explain what led you to it. Number ...

Recent scientific controversy over the accuracy of population attributable fraction (PAF) estimates to describe the percentage of total mortality due to obesity has made the concept of PAF visible in ...

Many children never master fractions. When asked whether 12/13 + 7/8 was closest to 1, 2, 19, or 21, only 24% of a nationally representative sample of more than 20,000 US 8th graders answered ...