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 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 ...

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 ...

How do you evaluate a movie? Opposing IMDb and Rotten Tomatoes, I believe there can’t be a unifying objective scale to measure films on. That’s because everyone has their own way of evaluation and ...

The number on the scale does not tell the whole story. Your body weight does not account for your body fat, muscle mass and bone density, and will not tell how much of it is due to water retention or ...

J.B. Maverick is an active trader, commodity futures broker, and stock market analyst 17+ years of experience, in addition to 10+ years of experience as a finance writer and book editor. T-tests are ...

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, ...

For those trying to lose weight, focusing on the scale can feel daunting — especially when the number doesn't budge. That's why experts suggest turning your attention to non-scale victories to track ...