Table 6.

AICs obtained for the four empirical variables, using the same cases as outcomes in each model.

AIC values	Neg1	Neg2	Pos1	Pos2
2-level AR(1)	31771.9	50941.2	36163.5	56649.1
3-level AR(1) without beta	31973.5	51207.2	36332.8	56953.3
3-level AR(1) with fixed beta	31962.4	51183.3	36317.8	56904.3
3-level AR(1) with random beta	31962.1	51170.6	36318.8	56900.0

In these AR(1) models, correlations between random parameters were not included.

The values in bold indicate which model is selected for that data set.