Table 7.

Principal Component Loadings for the Six-Component Level

	Component 1	Component 2	Component 3	Component 4	Component 5	Component 6
Attention Deficit Hyperactivity Disorder
A 1. ADHD Inattention
a. Makes careless mistakes	0.41	0.14	0.53	0.09	−0.09	0.08
b. Difficulty sustaining attention	0.64	0.19	0.11	−0.05	0.15	0.14
c. Often does not seem to listen	0.60	0.04	0.11	0.07	0.27	0.04
d. Difficulty following through on instructions	0.47	−0.01	0.13	0.22	0.32	0.01
e. Difficulty organizing tasks	0.71	0.15	0.14	0.11	0.03	0.02
f. Avoids mental effort	0.53	0.18	0.23	0.13	0.16	0.18
g. Often loses necessary items	0.69	0.11	0.04	0.15	−0.01	−0.14
h. Often easily distracted	0.60	0.18	0.26	−0.05	0.04	0.14
i. Often forgetful	0.74	0.19	0.07	0.10	0.10	0.10
2. ADHD Hyperactivity/Impulsivity
Hyperactivity
a. Often fidgets or squirms	0.27	0.08	0.61	0.04	0.06	0.10
b. Difficulty remaining seated	0.21	0.07	0.59	−0.01	0.24	0.23
c. Inappropriate running about	0.15	0.18	0.55	0.31	0.08	−0.06
d. Difficulty playing quietly	0.08	0.07	0.32	0.22	0.47	−0.01
e. Often “on the go”	0.18	0.11	0.61	0.03	0.28	0.08
f. Often talks excessively	0.10	0.16	0.12	0.02	0.64	−0.03
Impulsivity
g. Often blurts out answers	0.14	0.21	0.21	0.01	0.63	0.02
h. Difficulty awaiting turn	0.09	0.19	0.55	0.16	0.37	−0.01
i. Often interrupts or intrudes	0.26	0.23	0.14	0.04	0.59	−0.05
B. Onset before age 7	0.47	0.01	0.43	0.08	0.21	−0.06
Impairment: multiple settings	0.71	0.21	0.33	0.09	0.08	0.04
Oppositional Defiant Disorder
1. Often loses temper	0.30	0.56	0.01	0.24	0.08	−0.01
2. Often argues with adults	0.15	0.68	0.03	0.15	0.22	0.10
3. Defies adults’ requests	0.10	0.60	0.05	0.09	0.06	0.14
4. Deliberately annoys people	−0.01	0.66	0.17	−0.03	0.03	0.15
5. Blames others for mistakes	0.02	0.57	0.24	0.02	0.15	0.02
6. Touchy/easily annoyed by others	0.32	0.51	−0.10	0.16	0.12	0.17
7. Often angry and resentful	0.15	0.48	0.07	0.29	0.07	0.15
8. Often spiteful and vindictive	0.05	0.30	0.15	0.31	0.09	0.13
Impairment: multiple settings	0.21	0.84	0.07	0.18	0.13	0.01
Duration of 6 months or more	0.23	0.78	0.11	−0.02	0.06	−0.02
Conduct Disorder
1. Often bullies, threatens, or intimidates	0.08	0.11	0.10	0.39	0.07	0.41
2. Often initiates physical fights	0.09	0.09	0.02	0.64	0.12	0.02
3. Used a weapon with potential for harm	−0.02	0.32	0.13	0.47	0.07	0.14
4. Cruel to people	0.16	0.03	0.03	0.69	0.03	0.06
5. Cruel to animals	0.08	−0.02	−0.00	0.24	0.35	0.21
6. Sets fires to cause damage	0.10	0.11	0.06	0.11	0.39	0.42
7. Deliberately destroyed property	0.07	0.24	0.11	0.33	0.03	0.39
8. Broken into house, car, building	0.03	0.01	0.05	−0.00	−0.07	0.66
9. Lies to con others	0.16	0.36	0.31	0.32	0.06	0.06
10. Stolen nontrivial items	0.09	0.10	0.27	0.22	−0.05	0.46
11. Stays out late before age 13	0.05	0.12	−0.08	−0.00	0.20	0.38
12. Truant before 13	−0.01	0.08	0.04	0.09	−0.07	0.58
13. Impairment – multiple settings	0.15	0.32	0.29	0.56	0.10	0.27