Summary of the BUGS output for the multilevel model analysis.

Variance components are calculated as finite-population Standard Deviations and the percent contribution of each to the total are used as a rough measure of their relative importance. Column 3 gives the Standard Errors (SE) of the variance component estimates on the SD scale (given in column 2). The 2.5 and 97.5% quantiles are the upper and lower bounds of the 95% CI (Credible Interval) and the 16 and 84% values of a 68% CI (equivalent to ±1 SEM with symmetric normal distributions).