Table 7.

Post hoc test of TET for 1 mL water volume.

Post Hoc Test (1 mL)	Age group (i)	Age Group (j)	Mean Difference (μi − μj)	95% Confidence Interval
				Lower	Upper
Scheffé’s *	51–60	21–30	0.152	−0.077	0.381
	51–60	31–50	0.334	0.118	0.551
	21–30	31–50	0.183	−0.020	0.385

* The bold number means that the 95% confidence interval did not include 0.