. Author manuscript; available in PMC: 2018 Feb 1.

Published in final edited form as: J Child Psychol Psychiatry. 2016 Aug 5;58(2):116–128. doi: 10.1111/jcpp.12611

Table 1.

Multitrait—Multimethod Matrix

Method Measure	Mother-rated inattention	Mother-rated hyperactivity- impulsivity	Father- rated inattention	Father-rated hyperactivity- impulsivity	Teacher- rated inattention	Teacher-rated hyperactivity- impulsivity
Mother-rated inattention	1
Mother-rated hyperactivity-impulsivity	.66^**	1
Father-rated inattention	.70^**	.48^**	1
Father-rated hyperactivity-impulsivity	.48^**	.67^**	.66^**	1
Teacher-rated inattention	.33^**	.47^**	.28^**	.48^**	1
Teacher-rated hyperactivity-impulsivity	.54^**	.43^**	.55^**	.47^**	.63^**	1

Note.

^**

p<.01.