| Variables | Collinearity statistics | Coefficient correlations | ||||||||
| VIF | Distance | Family size | Environ. know | Education | Sex | Income | Year of mem. | Age | Marital status | |
| Distance | 1.116 | 1 |
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| Family size | 1.252 | −0.012 | 1 |
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| Environ. know | 1.026 | −0.001 | −0.072 | 1 |
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| Education | 1.145 | 0.015 | −0.070 | −0.024 | 1 |
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| Sex | 1.169 | −0.090 | −0.119 | 0.053 | 0.137 | 1 |
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| Income | 1.026 | −0.186 | 0.059 | 0.001 | −0.052 | −0.036 | 1 |
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| Year of mem. | 1.038 | 0.200 | −0.134 | 0.127 | −0.030 | −0.021 | −0.009 | 1 |
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| Age | 1.247 | −0.115 | −0.298 | 0.043 | 0.305 | 0.018 | 0.017 | 0.034 | 1 |
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| Marital status | 1.276 | 0.026 | −0.283 | 0.070 | −0.060 | 0.330 | 0.079 | 0.068 | −0.074 | 1 |