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J Child Psychol Psychiatry. 1995 May;36(4):645-61.

Psychometric properties of impulsivity measures: temporal stability, validity and factor structure.

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  • 1Developmental Epidemiology Research Unit, Judge Baker Children Center, Boston, MA, USA.


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.

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