Just-About-Right scale

The Just-About-Right scale (JAR scale), is a sensory evaluation tool used to measure the intensity of a particular attribute or characteristic of a product or service. The JAR scale typically consists of 5 levels ranging from "Much too little" to "Much too much."[1][2]

The JAR scale focuses on specific attributes of a product such as sweetness, saltiness, texture, etc., or service such as expediency, cost, etc.

The JAR scale is criticized for measuring attribute intensity and acceptability simultaneously.[3]

Just-About-Right Scale

Score	Interpretation
1	Much too little
2	Too little
3	Just about right
4	Too much
5	Much too much

See also

• Hedonic scale

References

1. Li, Bangde; Hayes, John E.; Ziegler, Gregory R. (October 2014). "Just-about-right and ideal scaling provide similar insights into the influence of sensory attributes on liking". Food Quality and Preference. 37: 71–78. doi:10.1016/j.foodqual.2014.04.019. PMC 4104712.
2. Hare, Lynne B (August 2024). "Statistics Spotlight: Caveat Emptor Measuring the effectiveness of a product or process requires proper test design and data analysis". Quality Progress. 57 (8): 46–49. Retrieved 9 September 2024.
3. Li, Bangde; Hayes, John E.; Ziegler, Gregory R. (October 2014). "Just-about-right and ideal scaling provide similar insights into the influence of sensory attributes on liking". Food Quality and Preference. 37: 71–78. doi:10.1016/j.foodqual.2014.04.019. PMC 4104712.