It’s in vogue these days to declare the building blocks of statistical inference irrelevant to assessing the performance of schools. For example, Joel Klein recently argued that statistical ...

When we look in the mirror, it’s easy to see not only the physical attributes that define our unique features, but also the layers beneath that makeup who we are — those tired eyes given as a gift of ...

HOLLIDAYSBURG — High levels of lead recently found in samples of drinking water in some homes and buildings in Hollidaysburg Borough were the result of a sampling error, according to Rick Pope, ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Academic survey researchers tend to differ ...

Several states with extensive water use databases rely upon the census approach. That is, data are collected for all water users withdrawing amounts greater than a specified threshold that varies from ...