University of Illinois Physics Professor Paul Kwiat and members of his research group have developed a new tool for precision measurement at the nanometer scale in scenarios where background noise and ...

Two methods of constructing equal-interval scales for educational achievement are discussed: Thurstone's absolute scaling method and Item Response Theory (IRT). Alternative criteria for choosing a ...

The U.S. National Institute of Standards and Technology (NIST) has completed significant upgrades to two key instruments serving what the agency calls “critical national needs”. The devices measure ...

The methodological development of a scale to measure attitudes toward physicians and primary medical care, and efforts to ascertain its reliability and validity have been reported previously. As a ...

Asking people how much money they would accept to experience pain again can provide a more accurate and comparable measure of ...

Feedback is mystified by a new way to assess interstellar visitors and the risks they pose, be they lumps of ice or alien ...

Physicists have measured Albert Einstein's theory of general relativity, or more specifically, the effect called time dilation, at the smallest scale ever, showing that two tiny atomic clocks, ...

Over five years after the release of the Body Cardio (and one flirtation with Nokia later), French company Withings has released its far most technologically advanced connected scale yet, the Body ...