Table 1.
Cross-correlation between Continuous Visual Properties
12345
1. Convex hull — .701** −0.171 .218* .771**
2. Total dot surface   — .402** .550** .544**
3. Density     — .215* −.224*
4. Average dot size       — .216*
5. Contour         —
12345
1. Convex hull — .701** −0.171 .218* .771**
2. Total dot surface   — .402** .550** .544**
3. Density     — .215* −.224*
4. Average dot size       — .216*
5. Contour         —

n = 118. A significant correlation was found between convex hull and total dot surface, average dot size, and contour; total dot surface and density, average dot size, and contour; density and average dot size and contour; and average dot size and contour. Although continuous visual properties are cross-correlated, no correlation exceeds the value of .8. Thus, cross-correlation analysis reveals no sign of multicollinearity.

*

p < .5.

**

p < .01.

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