Examples of employee performance measurement include a variety of methods employers use based on the employee's job category, employee-supervisor relationship and workplace culture. They range from ...

A digital weigh scale is one of the most precise analog instruments. Weigh scales, which use force sensors to measure the load offered by an object, are used in a multitude of applications ranging ...

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 ...

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 ...

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 ...