Table 5. Estimated predictors of the probability of under- or over-dispersion showing the mean change in probability and 95% confidence interval (CI).

Predictor	Mean	CI
Standard error	0.30	0.19 to 0.40
Difference in group sample sizes of 10+	0.13	0.09 to 0.16
Proportion continuous (0.0 to 1.0)	0.10	0.06 to 0.14
Number of table columns (+1)	0.09	0.07 to 0.11
Sample size (per doubling)	0.03	0.02 to 0.04