John Clapp

Title(s)Lenore Stein-Wood and William S. Wood Professor of School Behavioral Health, Professor of Social Work and Preventive Medicine
SchoolSchool of Social Work
AddressMRF 226
University Park Campus
Los Angeles CA 90089-0411
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    1. A mobile-based pregaming drinking prevention intervention for college students: A pilot randomized controlled trial. Psychol Addict Behav. 2023 Apr 13. Pedersen ER, Hummer JF, Davis JP, Fitzke RE, Tran DD, Witkiewitz K, Clapp JD. PMID: 37053413.
      View in: PubMed   Mentions:    Fields:    
    2. A mobile-based pregaming drinking prevention intervention for college students: study protocol for a randomized controlled trial. Addict Sci Clin Pract. 2022 06 18; 17(1):31. Pedersen ER, Hummer JF, Davis JP, Fitzke RE, Christie NC, Witkiewitz K, Clapp JD. PMID: 35717303; PMCID: PMC9206220.
      View in: PubMed   Mentions: 1     Fields:    Translation:HumansCTClinical Trials
    3. Longitudinal trajectories of prescription opioid misuse in adolescents. Drug Alcohol Depend. 2022 07 01; 236:109470. Kelley-Quon LI, Cho J, Barrington-Trimis J, Kipke MD, Clapp JD, Krueger EA, Leventhal AM. PMID: 35504242; PMCID: PMC10027390.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    4. Drinking with Friends: Measuring the Two-week Ecology of Drinking Behaviors. Am J Health Behav. 2022 04 20; 46(2):96-113. Clapp JD, Madden DR, Pakdaman S. PMID: 35501964.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    5. Increased Risk for Sexual Violence Victimization on Drinking Days Involving Pregaming. J Aggress Maltreat Trauma. 2022; 31(9):1224-1240. Pedersen ER, Davis JP, Setodji C, Dworkin ER, Leamon I, Hummer JF, Zutshi R, Clapp JD. PMID: 36439784; PMCID: PMC9698375.
      View in: PubMed   Mentions:
    6. Stressors experienced during the COVID-19 pandemic and substance use among US college students. Drug Alcohol Depend Rep. 2021 Dec; 1:100005. Oh H, Leventhal AM, Tam CC, Rajkumar R, Zhou S, Clapp JD. PMID: 35156105; PMCID: PMC8606256.
      View in: PubMed   Mentions: 3  
    7. Sex differences in factors predicting post-treatment opioid use. Addiction. 2021 08; 116(8):2116-2126. Davis JP, Eddie D, Prindle J, Dworkin ER, Christie NC, Saba S, DiGuiseppi GT, Clapp JD, Kelly JF. PMID: 33405314; PMCID: PMC8254742.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    8. Multifaceted impulsivity as a moderator of social anxiety and cannabis use during pregaming. J Anxiety Disord. 2020 12; 76:102320. Davis JP, Christie NC, Pakdaman S, Hummer JF, DeLeon J, Clapp JD, Pedersen ER. PMID: 33011556; PMCID: PMC7814868.
      View in: PubMed   Mentions: 1     Fields:    Translation:HumansAnimals
    9. Development of a Measure to Assess Protective Behavioral Strategies for Pregaming among Young Adults. Subst Use Misuse. 2020; 55(4):534-545. Pedersen ER, Davis JP, Hummer JF, DiGuiseppi G, Sedano A, Rodriguez A, Clapp JD. PMID: 31847662; PMCID: PMC7310598.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    10. Conceptualizing Neonatal Abstinence Syndrome as a Cascade of Care: A Qualitative Study With Healthcare Providers in Ohio. Adv Neonatal Care. 2018 Dec; 18(6):488-499. Syvertsen JL, Toneff H, Madden DR, Clapp JD. PMID: 30234507.
      View in: PubMed   Mentions: 3     Fields:    Translation:HumansPHPublic Health
    11. The event-level impact of one's typical alcohol expectancies, drinking motivations, and use of protective behavioral strategies. Drug Alcohol Depend. 2019 01 01; 194:112-120. Madden DR, Clapp JD. PMID: 30419405.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    12. A Control-Theoretic Assessment of Interventions During Drinking Events. IEEE Trans Cybern. 2019 Feb; 49(2):604-615. Gonzalez Villasanti H, Passino KM, Clapp JD, Madden DR. PMID: 29990276.
      View in: PubMed   Mentions:    Fields:    
    13. Comparison of Clinical Outcomes Following Head and Neck Surgery Among Patients Who Contract to Abstain From Alcohol vs Patients Who Abuse Alcohol. JAMA Otolaryngol Head Neck Surg. 2017 12 01; 143(12):1181-1186. Kaka AS, Zhao S, Ozer E, Agrawal A, Kang S, Rocco J, Carrau R, Teknos T, Clapp JD, Weed H, Old MO. PMID: 28447103; PMCID: PMC5824295.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    14. Examining the social ecology of a bar-crawl: An exploratory pilot study. PLoS One. 2017; 12(9):e0185238. Clapp JD, Madden DR, Mooney DD, Dahlquist KE. PMID: 28953932; PMCID: PMC5617212.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    15. Factors Associated with Self-Estimated Breath Alcohol Concentration Among Bar Patrons. Alcohol Clin Exp Res. 2017 Aug; 41(8):1492-1501. Rossheim ME, Barry AE, Thombs DL, Weiler RM, Krall JR, Stephenson CJ, Walters ST, Reed MB, Clapp JD, Suzuki S, Barnett TE, Cannell MB. PMID: 28683518.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    16. Feeling No Buzz or a Slight Buzz Is Common When Legally Drunk. Am J Public Health. 2016 Oct; 106(10):1761-2. Rossheim ME, Thombs DL, Gonzalez-Pons KM, Killion JA, Clapp JD, Reed MB, Croff JM, Ruderman DE, Weiler RM. PMID: 27626346; PMCID: PMC5024374.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    17. Characteristics of Cannabis-Only and Other Drug Users Who Visit the Emergency Department. Cannabis Cannabinoid Res. 2016; 1(1):149-153. Woodruff SI, McCabe CT, Hohman M, Clapp JD, Shillington AM, Eisenberg K, Sise CB, Castillo EM, Chan TC, Sise MJ. PMID: 27689138; PMCID: PMC4989480.
      View in: PubMed   Mentions: 3     Fields:    
    18. Quantitative, Qualitative and Geospatial Methods to Characterize HIV Risk Environments. PLoS One. 2016; 11(5):e0155693. Conners EE, West BS, Roth AM, Meckel-Parker KG, Kwan MP, Magis-Rodriguez C, Staines-Orozco H, Clapp JD, Brouwer KC. PMID: 27191846; PMCID: PMC4871522.
      View in: PubMed   Mentions: 8     Fields:    Translation:HumansPHPublic Health
    19. Effect of Depression on Risky Drinking and Response to a Screening, Brief Intervention, and Referral to Treatment Intervention. Am J Public Health. 2015 Aug; 105(8):1572-6. Montag AC, Brodine SK, Alcaraz JE, Clapp JD, Allison MA, Calac DJ, Hull AD, Gorman JR, Jones KL, Jones KL, Chambers CD. PMID: 26066915; PMCID: PMC4504277.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    20. Preventing alcohol-exposed pregnancy among an American Indian/Alaska Native population: effect of a screening, brief intervention, and referral to treatment intervention. Alcohol Clin Exp Res. 2015 Jan; 39(1):126-35. Montag AC, Brodine SK, Alcaraz JE, Clapp JD, Allison MA, Calac DJ, Hull AD, Gorman JR, Jones KL, Chambers CD. PMID: 25623412.
      View in: PubMed   Mentions: 23     Fields:    Translation:HumansPHPublic Health
    21. Drinking behavior among low-income older adults: a multimethod approach to estimating alcohol use. Alcohol Clin Exp Res. 2014 Nov; 38(11):2862-8. Clapp JD, Reed MB, Martel B, Gonzalez MC, Ruderman D. PMID: 25336352.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    22. The relationship between drinking games and intentions to continue drinking, intentions to drive after drinking, and adverse consequences: results of a field study. Am J Drug Alcohol Abuse. 2014 Sep; 40(5):374-9. Clapp JD, Reed MB, Ruderman DE. PMID: 25192205.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    23. Street intercept method: an innovative approach to recruiting young adult high-risk drinkers. Drug Alcohol Rev. 2014 Jul; 33(4):449-55. Graham K, Bernards S, Clapp JD, Dumas TM, Kelley-Baker T, Miller PG, Wells S. PMID: 24890452.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    24. Randomized clinical trial of the effects of screening and brief intervention for illicit drug use: the Life Shift/Shift Gears study. Addict Sci Clin Pract. 2014 May 22; 9:8. Woodruff SI, Clapp JD, Eisenberg K, McCabe C, Hohman M, Shillington AM, Sise CB, Castillo EM, Chan TC, Sise MJ, Gareri J. PMID: 24886786; PMCID: PMC4046000.
      View in: PubMed   Mentions: 19     Fields:    Translation:HumansPHPublic Health
    25. Response to commentaries. Addiction. 2014 May; 109(5):702-3. Graham K, Miller P, Chikritzhs T, Bellis MA, Clapp JD, Hughes K, Toomey TL, Wells S. PMID: 24720824.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    26. Response to letter from Barry & Dennis. Addiction. 2014 May; 109(5):853-4. Graham K, Miller P, Chikritzhs T, Bellis MA, Clapp JD, Hughes K, Toomey TL, Wells S. PMID: 24438154.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    27. Reducing intoxication among bar patrons: some lessons from prevention of drinking and driving. Addiction. 2014 May; 109(5):693-8. Graham K, Miller P, Chikritzhs T, Bellis MA, Clapp JD, Hughes K, Toomey TL, Wells S. PMID: 23796349.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    28. The relationship between group size, intoxication and continuing to drink after bar attendance. Drug Alcohol Depend. 2013 Nov 01; 133(1):198-203. Reed MB, Clapp JD, Martell B, Hidalgo-Sotelo A. PMID: 23764249.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    29. Evaluation of California's Alcohol and Drug Screening and Brief Intervention Project for Emergency Department Patients. West J Emerg Med. 2013 May; 14(3):263-70. Woodruff SI, Eisenberg K, McCabe CT, Clapp JD, Hohman M. PMID: 23687546; PMCID: PMC3656708.
      View in: PubMed   Mentions: 15     Fields:    
    30. Self-Reported Age of Onset and Telescoping for Cigarettes, Alcohol, and Marijuana Across Eight Years of the National Longitudinal Survey of Youth. J Child Adolesc Subst Abuse. 2012 Sep 01; 21(4):333-348. Shillington AM, Woodruff SI, Clapp JD, Reed MB, Lemus H. PMID: 23284228; PMCID: PMC3532889.
      View in: PubMed   Mentions: 28     Fields:    
    31. A review of evidence-based approaches for reduction of alcohol consumption in Native women who are pregnant or of reproductive age. Am J Drug Alcohol Abuse. 2012 Sep; 38(5):436-43. Montag A, Clapp JD, Calac D, Gorman J, Chambers C. PMID: 22931078.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    32. The Stability of Self-Reported Marijuana Use Across Eight Years of the National Longitudinal Survey of Youth. J Child Adolesc Subst Abuse. 2011 Nov 01; 20(5):407-420. Shillington AM, Clapp JD, Reed MB. PMID: 22308063; PMCID: PMC3269314.
      View in: PubMed   Mentions: 8     Fields:    
    33. Alcohol intoxication and occasional smoking: a field investigation. Am J Health Behav. 2011 Sep; 35(5):535-45. Reed MB, Clapp JD, Lange JE, McCabe CT. PMID: 22040615.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    34. Typologies of recanting of lifetime cigarette, alcohol and marijuana use during a six-year longitudinal panel study. Drug Alcohol Depend. 2011 Nov 01; 118(2-3):134-40. Shillington AM, Roesch SC, Reed MB, Clapp JD, Woodruff SI. PMID: 21524861; PMCID: PMC3164929.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    35. Prevalence and correlates of 'agua celeste' use among female sex workers who inject drugs in Ciudad Juarez, Mexico. Drug Alcohol Depend. 2011 Sep 01; 117(2-3):219-25. Morris MD, Case P, Robertson AM, Lozada R, Vera A, Clapp JD, Medina-Mora ME, Strathdee SA. PMID: 21441001; PMCID: PMC3148352.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    36. Testing the length of time theory of recall decay: examining substance use report stability with 10 years of national longitudinal survey of youth data. Subst Use Misuse. 2011; 46(9):1105-12. Shillington AM, Reed MB, Clapp JD, Woodruff SI. PMID: 21406007; PMCID: PMC3112355.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    37. Drinking plans and drinking outcomes: examining young adults' weekend drinking behavior. J Drug Educ. 2011; 41(3):253-70. Trim RS, Clapp JD, Reed MB, Shillington A, Thombs D. PMID: 22125921.
      View in: PubMed   Mentions: 12     Fields:    Translation:Humans
    38. 5-HTTLPR genotype and associations with intoxication and intention to drive: results from a field study of bar patrons. Addict Biol. 2011 Jan; 16(1):133-41. Thombs DL, O'Mara RJ, Hou W, Wagenaar AC, Dong HJ, Merves ML, Goldberger BA, Weiler RM, Dodd VJ, Clapp JD. PMID: 20579008.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    39. Impact of providing drinkers with "know your limit" information on drinking and driving: a field experiment. J Stud Alcohol Drugs. 2011 Jan; 72(1):79-85. Johnson MB, Clapp JD. PMID: 21138714; PMCID: PMC3001683.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    40. Predictors and effects of alcohol use on liver function among young HCV-infected injection drug users in a behavioral intervention. J Hepatol. 2011 Jul; 55(1):45-52. Drumright LN, Hagan H, Thomas DL, Latka MH, Golub ET, Garfein RS, Clapp JD, Campbell JV, Bonner S, Kapadia F, Thiel TK, Strathdee SA. PMID: 21145862; PMCID: PMC3094600.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    41. Does proximity to retailers influence alcohol and tobacco use among Latino adolescents? J Immigr Minor Health. 2010 Oct; 12(5):626-33. West JH, Blumberg EJ, Kelley NJ, Hill L, Sipan CL, Schmitz KE, Ryan S, Clapp JD, Hovell MF. PMID: 19936923; PMCID: PMC2904835.
      View in: PubMed   Mentions: 31     Fields:    Translation:Humans
    42. The relationship between alcohol consumption and past-year smoking initiation in a sample of undergraduates. Am J Drug Alcohol Abuse. 2010 Jul; 36(4):202-7. Reed MB, McCabe C, Lange JE, Clapp JD, Shillington AM. PMID: 20560839.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    43. Unsafe sex among HIV positive individuals: cross-sectional and prospective predictors. J Community Health. 2010 Apr; 35(2):115-23. Reilly T, Woodruff SI, Smith L, Clapp JD, Cade J. PMID: 20012476.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    44. Cigarette smoking and subsequent hospitalization in a cohort of young U.S. Navy female recruits. Nicotine Tob Res. 2010 Apr; 12(4):365-73. Woodruff SI, Conway TL, Shillington AM, Clapp JD, Lemus H, Reed MB. PMID: 20156886.
      View in: PubMed   Mentions: 11     Fields:    Translation:Humans
    45. Predictors of death and survival duration among a sample of persons living With HIV/AIDS. Soc Work Health Care. 2010; 49(9):783-98. Reilly T, Smith L, Woodruff SI, Clapp JD, Cade J. PMID: 20938875.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    46. Salvia divinorum: effects and use among YouTube users. Drug Alcohol Depend. 2010 Apr 01; 108(1-2):138-40. Lange JE, Daniel J, Homer K, Reed MB, Clapp JD. PMID: 20031341.
      View in: PubMed   Mentions: 24     Fields:    Translation:HumansAnimals
    47. Blood alcohol concentrations among bar patrons: A multi-level study of drinking behavior. Drug Alcohol Depend. 2009 Jun 01; 102(1-3):41-8. Clapp JD, Reed MB, Min JW, Shillington AM, Croff JM, Holmes MR, Trim RS. PMID: 19250775; PMCID: PMC2674139.
      View in: PubMed   Mentions: 25     Fields:    Translation:Humans
    48. Relationships between drinking onset, alcohol use intensity, and nighttime risk behaviors in a college bar district. Am J Drug Alcohol Abuse. 2009; 35(6):421-8. Thombs DL, O'Mara R, Tobler AL, Wagenaar AC, Clapp JD. PMID: 20014911.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    49. Three exploratory studies of college theme parties. Drug Alcohol Rev. 2008 Sep; 27(5):509-18. Clapp JD, Ketchie JM, Reed MB, Shillington AM, Lange JE, Holmes MR. PMID: 18696298.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    50. Breath alcohol concentrations of college students in field settings: seasonal, temporal, and contextual patterns. J Stud Alcohol Drugs. 2008 Mar; 69(2):323-31. Clapp JD, Johnson MB, Shillington AM, Lange JE, Voas RB. PMID: 18299775.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    51. College student use of Salvia divinorum. Drug Alcohol Depend. 2008 Apr 01; 94(1-3):263-6. Lange JE, Reed MB, Croff JM, Clapp JD. PMID: 18093751; PMCID: PMC2267695.
      View in: PubMed   Mentions: 16     Fields:    Translation:HumansAnimals
    52. Person and environment predictors of blood alcohol concentrations: a multi-level study of college parties. Alcohol Clin Exp Res. 2008 Jan; 32(1):100-7. Clapp JD, Min JW, Shillington AM, Reed MB, Croff JK. PMID: 18028528.
      View in: PubMed   Mentions: 25     Fields:    Translation:Humans
    53. Measuring college students' alcohol consumption in natural drinking environments: field methodologies for bars and parties. Eval Rev. 2007 Oct; 31(5):469-89. Clapp JD, Holmes MR, Reed MB, Shillington AM, Freisthler B, Lange JE. PMID: 17761807.
      View in: PubMed   Mentions: 22     Fields:    Translation:Humans
    54. The relationship between alcohol use and cigarette smoking in a sample of undergraduate college students. Addict Behav. 2007 Mar; 32(3):449-64. Reed MB, Wang R, Shillington AM, Clapp JD, Lange JE. PMID: 16844313.
      View in: PubMed   Mentions: 73     Fields:    Translation:Humans
    55. Environmental and individual predictors of error in field estimates of blood alcohol concentration: a multilevel analysis. J Stud Alcohol. 2006 Jul; 67(4):620-7. Clapp JD, Min JW, Shillington AM, Reed MB, Lange JE, Holmes MR. PMID: 16736083.
      View in: PubMed   Mentions: 15     Fields:    Translation:Humans
    56. The sidewalk survey: a field methodology to measure late-night college drinking. Eval Rev. 2006 Feb; 30(1):27-43. Johnson MB, Lange JE, Voas RB, Clapp JD, Lauer E, Snowden CB. PMID: 16394185.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    57. Heavy alcohol use compared to alcohol and marijuana use: do college students experience a difference in substance use problems? J Drug Educ. 2006; 36(1):91-103. Shillington AM, Clapp JD. PMID: 16981642.
      View in: PubMed   Mentions: 30     Fields:    Translation:Humans
    58. Reducing DUI among US college students: results of an environmental prevention trial. Addiction. 2005 Mar; 100(3):327-34. Clapp JD, Johnson M, Voas RB, Lange JE, Shillington A, Russell C. PMID: 15733246.
      View in: PubMed   Mentions: 19     Fields:    Translation:Humans
    59. Done 4: analysis of a failed social norms marketing campaign. Health Commun. 2005; 17(1):57-65. Russell CA, Clapp JD, Dejong W. PMID: 15590342.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    60. Two studies examining environmental predictors of heavy drinking by college students. Prev Sci. 2003 Jun; 4(2):99-108. Clapp JD, Lange J, Min JW, Shillington A, Johnson M, Voas R. PMID: 12751879.
      View in: PubMed   Mentions: 22     Fields:    Translation:Humans
    61. A failed norms social marketing campaign. J Stud Alcohol. 2003 May; 64(3):409-14. Clapp JD, Lange JE, Russell C, Shillington A, Voas RB. PMID: 12817831.
      View in: PubMed   Mentions: 26     Fields:    Translation:Humans
    62. Correlation between modes of drinking and modes of driving as reported by students at two American universities. Accid Anal Prev. 2003 Mar; 35(2):161-6. Clapp JD, Shillington AM, Lange JE, Voas RB. PMID: 12504136.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    63. The reliability of environmental measures of the college alcohol environment. J Drug Educ. 2002; 32(4):287-301. Clapp JD, Whitney M, Shillington AM. PMID: 12556134.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
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