Table 3.

Intraclass correlation coefficient (ICC).

	Intraclass correlationb	95% confidence interval		F test with true value 0
		Lower-bound	Upper-bound	Value	df1	df2	Sign
Single measures	0.822a	0.573	0.920	13.418	33	33	0.000
Average measures	0.903c	0.729	0.958	13.418	33	33	0.000

Note. Two-way mixed-effects model where people effects are random and measures effects are fixed.

^aThe estimator is the same whether the interaction effect is present or not.

^bType A ICCs using an absolute agreement definition.

^cTo achieve an estimate, this number is computed assuming the interaction effect is absent.