Which two temperature scales are the most common in empirical studies?

The two temperature scales that are most commonly used in empirical studies are Fahrenheit and Celsius. These scales are prevalent largely due to their historical use and application in different context areas.

Fahrenheit is widely utilized in the United States, particularly in everyday contexts such as weather forecasting. This scale is familiar to the general public in the U.S., making it practical for empirical studies conducted in that region.

Celsius, on the other hand, is favored globally and is employed in most scientific research and experimentation due to its direct relationship to the metric system, making it more compatible with other scientific measurements and calculations. This scale is based on the freezing and boiling points of water, making it intuitive for empirical data collection.

In contrast, Kelvin and Rankine are primarily used in scientific contexts where absolute temperatures are necessary. Kelvin is primarily utilized in the sciences, particularly in thermodynamics and physical sciences, while Rankine is less common and mainly used within certain engineering fields. However, these scales do not have the same level of widespread application in empirical studies involving everyday temperature measurements as Fahrenheit and Celsius do.