Wireless Substitution: Early Release of Estimates From the National Health Interview Survey

Preliminary results from the July–December 2012 National Health Interview Survey (NHIS) indicate that the number of American homes with only wireless telephones continues to grow. Nearly two in every five American homes (38.2%) had only wireless telephones (also known as cellular telephones, cell phones, or mobile phones) during the second [...] Read more »

Gallup’s Open Book

It isn’t unusual for individuals, organizations, or even political parties to make mistakes, but it is unusual, certainly in Washington, to see anyone own up to them. What is truly extraordinary is for any person or group to conduct, release, and publicize an exhaustive research project detailing what went wrong [...] Read more »

When Numbers Mislead

… Averages are useful because many traits, behaviors and outcomes are distributed in a bell-shaped curve, with most results clustered around the middle and a much smaller group of outliers at the high and low ends. … But averages can be misleading when a distribution is heavily skewed at one [...] Read more »