Covariance structure		Transforms^a			10-fold LCV score	Percent decrease	Clock time (minutes)
Covariance structure		Means	Variances	Random coefficients	10-fold LCV score	Percent decrease	Clock time (minutes)
Directly specified correlation
	EXCH	visit^−0.2	visit^−0.5	--	0.56519	0.36%	3.7
Random coefficients		visit^−.02, int	1	1	0.56721	0.00%	109.2