Table 2.

The conventional Pearson’s correlation coefficients and concordance correlation coefficients based on summary measures of marijuana use in the real data example by assessment schedules and recall windows.

Composite scores with three recall windows	Daily		Weekly
	Pearson’s r	CCC	Pearson’s r	CCC
Average frequency of marijuana use per day
Days 1–30	0.6972	0.6927	0.6716	0.6703
Days 31–60	0.6748	0.6594	0.6612	0.6565
Days 61–90	0.7159	0.7020	0.5506	0.5437
Percentage of days involving marijuana use
Days 1 −30	0.6452	0.6354	0.6109	0.6059
Days 31 −60	0.6316	0.6091	0.4730	0.4681
Days 61 −90	0.6844	0.6340	0.4324	0.4125
Maximum frequency of marijuana use
Days 1 −30	0.5258	0.5146	0.5559	0.5219
Days 31 −60	0.5941	0.5283	0.5226	0.4804
Days 61 −90	0.6009	0.5165	0.3993	0.3729