Citation

Kindlon D, Mezzacappa E, Earls F. J. Child Psychol. Psychiatry 1995; 36(4): 645-661.

Copyright

(Copyright © 1995, John Wiley and Sons)

DOI

10.1111/j.1469-7610.1995.tb02319.x

PMID

unavailable

Abstract

Abstract Temporal stability, discriminant validity, and factor structure of an array of performance measures of impulsivity was assessed within samples of normal (N= 48) and behaviorally disordered children (N= 88) ages 6-16 (126 M, 10 F; mean age = 10.57 years; SD= 2.13). Using a relatively conservative standard for adequate temporal stability, 31% of the variables derived from these measures met criterion. Of these, 83% were able to discriminate groups after partialling out the effects of intellectual aptitude and age. Factor analysis yielded a two‐factor solution interpreted as representing cognitive (inhibitory control) and motivational (insensitivity to punishment/nonreward) components of impulsivity.