Application of item response theory to quantify substance use disorder severity

Addictive Behaviors
Levent KirisciStacy Brown

Abstract

The present investigation had two main goals: (1) Determine whether binary substance use disorder (SUD) diagnoses are indicators of a unidimensional trait indexing severity of disorder; and, (2) demonstrate the predictive, concurrent and construct validity of the SUD severity scale. Boys and their biological parents were administered structured diagnostic interviews to diagnose SUD. Item response theory (IRT) was applied to determine whether the diagnoses are indicators of a unidimensional trait. The score on this scale was correlated with substance use behavior, violence, treatment history, risky sex, and social adjustment. SUD diagnoses are indicators of a unidimensional latent trait. Maternal and paternal SUD severity predicted son's SUD severity at age 19. The score on the SUD severity scale correlated with drug use frequency, number of different drugs used in lifetime, treatment seeking, illegal behavior, social maladjustment, and risky sex. SUD can be quantified on an interval scale indexing severity of disorder. The advantages of measuring SUD severity as a continuous trait are discussed.

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Citations

Nov 4, 2008·Annual Review of Clinical Psychology·Steven P Reise, Niels G Waller
Aug 13, 2008·Substance Use & Misuse·M Jesús HerreroUNKNOWN Itinere Investigators
Jan 21, 2012·Drug and Alcohol Dependence·Michael M VanyukovTy A Ridenour
Sep 1, 2009·Journal of Substance Abuse Treatment·Bradley T ConnerErnest P Noble
Nov 27, 2008·Journal of the American Academy of Child and Adolescent Psychiatry·Heather GelhornThomas Crowley
Dec 8, 2010·Addiction·Fiona L ShandElliot C Nelson
Jun 26, 2015·Alcoholism, Clinical and Experimental Research·Thomas C HarfordBridget F Grant
Jun 1, 2013·The American Journal of Drug and Alcohol Abuse·Levent KirisciMichael Vanyukov
May 16, 2014·Substance Use & Misuse·Liesl A NydeggerJerry L Grenard
Aug 27, 2014·Substance Abuse : Official Publication of the Association for Medical Education and Research in Substance Abuse·Ralph TarterMaureen Reynolds
Nov 13, 2007·The American Journal of Drug and Alcohol Abuse·Ada C MezzichZhongcui Gao
Aug 19, 2007·International Journal of Methods in Psychiatric Research·John E HelzerMichael Gossop
Jan 23, 2020·The American Journal of Drug and Alcohol Abuse·Levent KirisciMichael Vanyukov
Mar 24, 2018·World Journal of Psychiatry·Octavio CampolloFernando A Wagner

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