. Author manuscript; available in PMC: 2015 Sep 1.

Published in final edited form as: Paediatr Perinat Epidemiol. 2014 Jun 17;28(5):434–444. doi: 10.1111/ppe.12135

Table 1.

Behavior Scales and Component Rating Items^a, U.S. Collaborative Perinatal Project (1959–73)

Age 4			Age 7

Internalizing behaviors	Hyperactive behaviors	Oppositional	Internalizing behaviors	Externalizing behaviors
Flat affect	Brief attention span	Unstable emotional response	Shy/withdrawn	Negative/resistive
Phlegmatic	No or brief effort toward goal	Irritable	Flat affect	Assertive/willful
Passive	Overactive	Negative/resistive	Inactive	Hostile
Rigid	Impulsive/uncontrolled behavior	Demands a lot of attention	Little or no communication	Unstable emotional response
Little or no communication		Unwilling to follow directions	Fearful/apprehensive	Acts out/becomes upset
			Passive	Impulsive/uncontrolled behavior

Developed by Donatelli et al (28)