Table 3.

Empirical coverage of 95% confidence intervals for β₂ after multiple imputation by PMM

ICC	Cluster size	Clusters	PMM	PMM	PMM	PMM	PMM	PMM
ρ	m	k	FE	dist	RE	draw	avg	IGN
0.03	4	100	91.5	94.4	94.0	95.1	94.5	94.7
	8	10	94.5	94.1	94.9	95.1	93.5	94.7
		20	92.6	93.8	93.7	93.9	93.2	94.2
		40	93.1	93.8	94.7	94.8	94.0	95.1
	40	10	97.3	96.1	97.0	97.0	94.3	97.3
		20	95.8	93.7	94.6	95.1	91.7	95.1
		40	95.4	94.8	94.8	94.6	92.1	95.3
	400	4	100	100	100	100	99.7	100
0.08	4	100	91.8	94.2	93.2	95.4	93.8	94.8
	8	10	94.0	94.3	94.5	95.0	92.5	94.8
		20	92.4	93.3	94.3	94.5	91.9	94.0
		40	93.3	92.7	93.8	95	92.2	95.0
	40	10	97.3	96.5	97	96.8	93.0	97.3
		20	95.5	94.5	95.5	94.8	90.4	95.2
		40	95.2	95.1	94.9	94.8	91.2	95.6
	400	4	100	100	100	100	100	100
Bolded values indicate coverage rates below 95%.
Italicized values indicate coverage rates above 95%.
Missing data were generated completely at random (MCAR) with a response rate of 60%, and data were imputed using an imputation model that correctly specified the covariate effects.