Table 17.

Pairwise Comparisons, Hair Color and Concentrations, PHT

Hair Color	Hair Color	Mean	Std.	Sig.a
(I)	(J)	Difference	Error
		(I-J)
Black	Brown	.168	.865	1.000
	Blond	3.287	1.245	.065
	Gray	5.902*	1.265	.000
Brown	Black	-.168	.865	1.000
	Blond	3.119	1.292	.116
	Gray	5.734*	1.327	.000
Blond	Black	-3.287	1.245	.065
	Brown	-3.119	1.292	.116
	Gray	2.615	1.680	.754
Gray	Black	-5.902*	1.265	.000
	Brown	-5.732*	1.327	.000
	Blond	-2.615	1.680	.754

^a Bonferroni adjustment for multiple comparisons ^* mean difference is significant at he .05 level