Comparisons of endpoint variance.

F- and p-values are given for comparisons of the horizontal and vertical variances in the drift- and no-drift conditions (for zero-penalty trials only). No Bonferroni corrections were applied, although no conclusions would be changed by applying corrections. For the first and third comparison, positive evidence indicates support for a model in which the two variances are unequal vs one that assumes they are equal. For the second comparison, positive evidence supports a model that assumes horizontal variance is greater in the drift trials than in the no-drift trials (versus a model that assumes equal variances). In the fourth comparison, positive evidence values support a model that assumes horizontal variance is greater than vertical variance (versus a model that assumes equal variances).