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Correlation analysis of the four evaluation methods in men.
| Evaluation methods | ΔE value | a∗ value | 10 color shades | 5 color scales |
|---|---|---|---|---|
| ΔE value | 1.000 | |||
| a∗ value | 0.968 | 1.000 | ||
| 10 Color Shades | 0.888 | 0.860 | 1.000 | |
| 5 Color Scales | 0.862 | 0.850 | 0.913 | 1.000 |
Spearman rank correlation test.
In the men-only correlation analysis, there were significant correlations between all four evaluation methods.
P < 0.001 for all correlations.
