The Marijuana Screening Inventory (MSI-X): reliability, factor structure, and scoring criteria with a clinical sample

The American Journal of Drug and Alcohol Abuse
Dale Alexander, Patrick Leung

Abstract

This study continues the psychometric evaluation of a 31-item Marijuana Screening Inventory (MSI-X) with adults referred to a substance abuse clinic, by determining MSI-X reliability, factor structure, scoring cutoff accuracy, sensitivity, and specificity with a DSM-IV-TR criterion measure. A "marijuana inventory" containing demographic, MSI-X, and DSM IV-TR diagnostic items was administered to 107 adults undergoing substance-use evaluation. The MSI-X reliability was .90 with factor analysis deriving nine factors explaining 72.2% of the variance. Varimax rotation supports retention of all 31 items on nine factor-based scales. Receiver operating characteristic analysis determined MSI-X accuracy and cutoff points in relation to four DSM IV-TR diagnostic classifications. The MSI-X obtained the highest probability (.91) for accuracy in identifying both cannabis dependence and abuse, with six the optimal cutoff for maximum sensitivity (.83) and specificity (.89). Thus, MSI-X scores of > or = 6 are considered high risk. A cutoff score of 3 was associated with (probability, .90; sensitivity, .85; specificity, .81) identifying cannabis abuse only risk, providing a 3 to 5 score in the moderate risk range. Clinical sample data supports t...Continue Reading

References

Jan 1, 1992·Journal of Substance Abuse Treatment·A T McLellanM Argeriou
Sep 1, 1986·Clinical Pharmacology and Therapeutics·E J Cone, R E Johnson
Jan 1, 1982·Addictive Behaviors·H A Skinner
Mar 1, 1995·Addictive Behaviors·S Svanum, J McGrew
Jul 1, 1996·Drug and Alcohol Dependence·W M ComptonD E Mager
Feb 2, 1999·Addiction·W SwiftW Hall
Apr 9, 1999·Journal of Substance Abuse Treatment·K C Winters
May 26, 1999·Health & Social Work·M StatonR Clayton
Jun 5, 1999·Archives of Pediatrics & Adolescent Medicine·J R KnightH J Shaffer
Jun 8, 2001·The Journal of Applied Psychology·E R GalaifJ V Carmona
Dec 1, 2001·The American Journal of Psychiatry·G B Bovasso
Jan 31, 2002·Addictive Behaviors·Dennis M Gorman, James H Derzon
Mar 7, 2002·JAMA : the Journal of the American Medical Association·Nadia SolowijUNKNOWN Marijuana Treatment Project Research Group
Aug 30, 2002·Addiction·David M FergussonNicola Swain-Campbell
Oct 24, 2002·Drug and Alcohol Dependence·Maree TeessonAndrew Baillie
Oct 31, 2002·Human Psychopharmacology·J. G. RamaekersJ. F. O'Hanlon
Nov 7, 2002·Archives of General Psychiatry·David W BrookMartin Whiteman
Nov 26, 2002·BMJ : British Medical Journal·George C PattonWayne Hall
Nov 26, 2002·BMJ : British Medical Journal·Louise ArseneaultTerrie E Moffitt
Dec 21, 2002·The American Journal of Drug and Alcohol Abuse·Vito AgostiFrances Levin
Dec 21, 2002·The American Journal of Drug and Alcohol Abuse·Leo BastiaensDuru Sakhrani
Mar 1, 2003·Drug and Alcohol Dependence·Joseph GfroererRalph Folsom
May 20, 2003·Addiction·Ty A RidenourRenee M Cunningham-Williams
Sep 27, 2003·The American Journal of Drug and Alcohol Abuse·Dale Alexander

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Citations

Aug 1, 2012·Journal of Developmental Origins of Health and Disease·E HothamJ Robinson
Jul 26, 2006·The American Journal of Drug and Alcohol Abuse·Dale Alexander, Patrick Leung
Feb 9, 2021·Surgery for Obesity and Related Diseases : Official Journal of the American Society for Bariatric Surgery·Rachel E GoetzeKaren B Grothe

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