Psychological Testing, An Introduction To Test & Measurement, 1988 (Hardcover)

Rare hardcover 1988 version.

Spine has slight discolouration due to sun exposure

The worldwide standardization of distance measures occurred relatively recently in history. Not until 1875 did 17 nations ratify a treaty at the Convention of the Meter stipulating that a particular platinum bar, stored in a vault at the International Bureau of Weights and Measures in France, was to be the standard for the meter. As late as 1960, 38 countries represented at a conference on weights and measures redefined an international meter as "1,650,763.73 vacuum wavelengths of monochromatic orange light emitted by a krypton atom of mass 86." The platinum bar idea was a lot simpler.

The inch, as used in the United States and England, was also redefined to be equal in measurement to 2.54 centimeters (whereas it had previously been 2.54005 centimeters in the United States and 2.5399956 centimeters in England).

All fields of human endeavor use measurement in some form, and each field has its own set of measuring tools and measuring units. If you're recently engaged or thinking about becoming engaged, you may have obtained an education on a unit of measure called the carat. If you've been shopping for a computer, you may have learned something about a unit of measure called a byte. And if you're in need of an air conditioner, you'll no doubt want to know about the Btu (British thermal unit.

Other units of measurement you may or may not be familiar with include a mile (land), a mile (nautical, a ton (long), a ton (short), a hertz, a henry, miles per hour, cycles per second, and candela per square meter. Professionals in the fields that employ these units (as well as various tools to obtain measurements) know the potential uses, benefits, and limitations of the measuring tools they use and the measurements they make. So, too, it is incumbent upon the user or potential user of psychological tests to have a working familiarity with the tools of testing and the

theoretical underpinnings of the enterprise.