Delinquency and Impulsivity and IQ: A Reply to Block (1995)

Journal Article (Journal Article)

Although J. Block's critique (J. Block, 1995) of the D. Lynam, T. Moffitt, and M. Stouthamer-Loeber report (D. Lynam, T. Moffitt, and M. Stouthamer-Loeber, 1993) contains several interesting points, many of his criticisms are not valid and resulted from miscommunications, misunderstandings, and simple preferences. Specifically, the authors believe the criticisms to be the results of mistaking a single hypothesis for an organizing principle, a misunderstanding of the reported path analyses, and a simple preference for impulsivity over IQ as an explanatory construct. An attempt is made to address the misinterpretation through clarification of the predicted relations between IQ, executive dysfunction, impulsivity, and delinquency. The original path analyses are reviewed and are shown to refute not only the original self-control hypothesis (Lynam et al., 1993), as reported, but also Block's more recent version. Finally, evidence marshalled by Block to support his emphasis on impulsive personality over low IQ is argued to have inadequacies from empirical and social policy perspectives.

Full Text

Duke Authors

Cited Authors

  • Lynam, DR; Moffitt, TE

Published Date

  • January 1, 1995

Published In

Volume / Issue

  • 104 / 2

Start / End Page

  • 399 - 401

International Standard Serial Number (ISSN)

  • 0021-843X

Digital Object Identifier (DOI)

  • 10.1037/0021-843X.104.2.399

Citation Source

  • Scopus