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 ...

The Power of Food Scale (PFS) was developed to assess the psychological impact of today's food-abundant environments. Data were obtained from obese adults in a clinical trial for a weight management ...

The aim of this study is to assess the effective measurement range of Ryff's Psychological Well-being scales (PWB). It applies normal ogive item response theory (IRT) methodology using factor analysis ...

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 ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Pew Research Center has a long history measuring the public’s knowledge about ...

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 ...