Natural Gas Reforming/Gasification: Synthesis gas, a mixture of hydrogen, carbon monoxide, and a small amount of carbon dioxide, is created by reacting natural gas with high-temperature steam. The carbon monoxide is reacted with water to produce additional hydrogen.
Measurement scales are used to categorize and/or quantify variables. This lesson describes the four scales of measurement that are commonly used in statistical analysis: nominal, ordinal, interval, and ratio scales. Each scale of measurement satisfies one or more of the following properties of measurement.
Features and benefits. 1  Unique, efficient scale structure. All 22 scales are nonoverlapping, promoting high discriminant validity. Scale development was content-driven. 2  Fast, cost-effective administration. Clients generally complete the 344 items in less than an hour. 3  Can be used with low-reading level populations.