I have a response variable called skin yellowness, which I will measure via a scored color chart, whereby 1 is pale yellow and 15 is orange. I'm not sure if this counts as an ordinal variable, because the scale is numerical and is basically a value for pigmentation (making it a numerical variable) or if it is ordinal, because the score suggests some sort of order. Can anyone help?
Oemniyah Mohammed Ashim
Based on the information provided, the scale can be treated as an ordinal scale for color (Yellowness) but not an interval or linear one for color. Because color is a perception, the degree of "yellowness" differs from mere pigmentation. In addition, there is no consensus definition for what is called "yellowness." Mere pigmentation is physical and linear.
- Badges
- Science topic
- Similar topics
- Social Psychology
- Attitude