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]
| Score | Interpretation |
|---|---|
| 1 | Much too little |
| 2 | Too little |
| 3 | Just about right |
| 4 | Too much |
| 5 | Much too much |
See also
editReferences
edit- ^ 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.
- ^ 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.
- ^ 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.
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