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| β0 | βround | βgroupsize | βcondition | |
| Rate +0 (base model) | 5.75 | 0.00854 | 0.239 | 0.269 |
| Rate +6 | 7.25 | 0.0156 | 0.422 | 0.239 |
| Rate +12 | 12.5 | 0.00776 | −0.196 | −0.266 |
| Rate +18, Rate –6 | 20.6 | −0.0136 | −0.925 | −0.268 |
Bold coefficients are significant at p<0.001. Other coefficients are not significant below p<0.05. With rate defined on a lattice of diameter 24, Rate +18 = Rate –6.
