Skip to main content

NDACAN Measure Details

Infant Characteristics Questionnaire (ICQ-6)


Designed to measure parental perception of infant temperament, focusing on difficult temperament. Three separate ICQ forms have been developed, targeting infants at approximately 6, 13, and 24 months of age. This description will focus only on the form developed for 6 month olds (ICQ-6). The ICQ-6 is comprised of 24 items describing infant behavior. The parent or primary caregiver ranks each item on a 7-point scale, indicating the level of perceived difficulty in dealing with the described behavior. Four subscales have been identified through principal components analyses: Fussy/Difficult, Unadaptable, Dull, and Unpredictable.


Bates, J. E., Freeland, C. A., & Lounsbury, M. L. (1979). Measurement of infant difficultness. Child Development. 50(3), 794-803. Retrieved from: