Research Article
Evaluating the Mechanism by Which the TNO Stereo Test Overestimates Stereo Thresholds
Table 2
Statistical result of the data.
| Group | Shapiro–Wilk test | Wilcoxon signed-rank test | Statistic | | Versus original | Versus isoluminant | Versus grayscale | Versus black-white | Z | | Z | | Z | | Z | |
| Original | 0.931 | 0.042 | — | — | −2.828 | 0.005 | −3.251 | 0.001 | −4.378 | <0.001 | Isoluminant | 0.923 | 0.025 | −2.828 | 0.005 | — | — | −2.140 | 0.032 | −4.226 | <0.001 | Grayscale | 0.897 | 0.005 | −3.251 | 0.001 | −2.140 | 0.032 | — | — | −3.999 | <0.001 | Black-white | 0.802 | <0.001 | −4.378 | <0.001 | −4.226 | <0.001 | −3.999 | <0.001 | — | — |
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