Table 1.

List of self-reported impulsivity and novelty seeking Early Adolescent Temperament Questionnaire items.

EATQ items (self-report)
Impulsivity	Impulsivity factor loading	Novelty seeking factor loading
I put off working on projects until right before they're due	0.67	0.12
I do something fun before starting homework, even if I'm not supposed to	0.60	0.15
If I have a hard assignment to do, I get started right away (reverse)	−0.63	0.01
I tend to say the first thing that comes to mind without stopping to think	0.49	0.10
I have a hard time finishing things on time	0.47	−0.09
I finish homework before the due date (reverse)	−0.48	0.00
I blurt out answers in class before the teacher calls on me	0.44	0.10
I can stick with my plans and goals (reverse)	−0.44	0.19
I am good at self-discipline (reverse)	−0.42	0.10

Novelty seeking	Novelty seeking factor loading	Impulsivity factor loading
I wouldn't be afraid to try something like mountain climbing	0.62	0.03
I would not be afraid to try a risky sport	0.62	−0.01
Skiing fast down a steep slope sounds scary to me (reverse)	−0.43	−0.03
I get frightened when riding with a person who likes to speed (reverse)	−0.32	−0.17
I enjoy going places where there are big crowds and lots of excitement	0.38	−0.06

Note: Self-reported behavior when participants were approx. 12–13 years old; loadings from Promax rotated factor matrix.