Table 10.

Post hoc test of TET for 20 mL water volume.

Post Hoc Test (20 mL)	Age Group (i)	Age Group (j)	Mean Difference (μi − μj)	95% Confidence Interval
				Lower	Upper
Scheffé’s *	51–60	21–30	0.423	0.051	0.795
	51–60	31–50	0.554	0.182	0.926
	21–30	31–50	0.131	−0.241	0.503

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