Stephen T. Chermack

The relation between alcohol and aggression: An integrated biopsychosocial conceptualization

The relation between acute alcohol consumption and aggressive behavior is a complex phenomenon that has been studied from a variety of different disciplines. This article reviews findings from both survey and experimental research. The influence of both situational and individual difference variables on the alcohol-aggression relation is discussed and the strengths and weaknesses of various methodological approaches are highlighted. Current theoretical perspectives of the alcohol-aggression relation are reviewed. An integrated heuristic framework of the alcohol-aggression relation also is outlined. This conceptualization involves both distal and proximal risk factors for problems with alcohol and violence, which include biological, psychological, interpersonal, and contextual influences. Research and treatment implications of this framework are also discussed. It is recommended that researchers attempt to measure variables from a variety of domains in order to obtain a better understanding of this complex phenomenon. Furthermore, it is emphasized that there is a clear need to further implement and assess primary and secondary prevention efforts and to design integrated and flexible approaches for individuals with alcohol and violence problems.

Effects of a brief intervention for reducing violence and alcohol misuse among adolescents: a randomized controlled trial.

CONTEXT Emergency department (ED) visits present an opportunity to deliver brief interventions to reduce violence and alcohol misuse among urban adolescents at risk of future injury. OBJECTIVE To determine the efficacy of brief interventions addressing violence and alcohol use among adolescents presenting to an urban ED. DESIGN, SETTING, AND PARTICIPANTS Between September 2006 and September 2009, 3338 patients aged 14 to 18 years presenting to a level I ED in Flint, Michigan, between 12 pm and 11 pm 7 days a week completed a computerized survey (43.5% male; 55.9% African American). Adolescents reporting past-year alcohol use and aggression were enrolled in a randomized controlled trial (SafERteens). INTERVENTION All patients underwent a computerized baseline assessment and were randomized to a control group that received a brochure (n = 235) or a 35-minute brief intervention delivered by either a computer (n = 237) or therapist (n = 254) in the ED, with follow-up assessments at 3 and 6 months. Combining motivational interviewing with skills training, the brief intervention for violence and alcohol included review of goals, tailored feedback, decisional balance exercise, role plays, and referrals. MAIN OUTCOME MEASURES Self-report measures included peer aggression and violence, violence consequences, alcohol use, binge drinking, and alcohol consequences. RESULTS About 25% (n = 829) of screened patients had positive results for both alcohol and violence; 726 were randomized. Compared with controls, participants in the therapist intervention showed self-reported reductions in the occurrence of peer aggression (therapist, -34.3%; control, -16.4%; relative risk [RR], 0.74; 95% confidence interval [CI], 0.61-0.90), experience of peer violence (therapist, -10.4%; control, +4.7%; RR, 0.70; 95% CI, 0.52-0.95), and violence consequences (therapist, -30.4%; control, -13.0%; RR, 0.76; 95% CI, 0.64-0.90) at 3 months. At 6 months, participants in the therapist intervention showed self-reported reductions in alcohol consequences (therapist, -32.2%; control, -17.7%; odds ratio, 0.56; 95% CI, 0.34-0.91) compared with controls; participants in the computer intervention also showed self-reported reductions in alcohol consequences (computer, -29.1%; control, -17.7%; odds ratio, 0.57; 95% CI, 0.34-0.95). CONCLUSION Among adolescents identified in the ED with self-reported alcohol use and aggression, a brief intervention resulted in a decrease in the prevalence of self-reported aggression and alcohol consequences. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT00251212.

Construct validity of laboratory aggression paradigms: A response to tedeschi and quigley (1996)

Abstract The purpose of this article is to present a response to a paper recently published in this journal by Tedeschi and Quigley (1996) in which the authors criticized the validity of laboratory aggression paradigms. Tedeschi and Quigley debated the construct validity of the teacher/learner paradigm, essay evaluation procedures, the bobo doll modeling paradigm, and the competitive reaction time paradigm (which will be referred to herein as the Taylor Aggression Paradigm; TAP). The present article will focus primarily on the TAP, its modified versions, and the Point Subtraction Aggression Paradigm (PSAP). Although it is one of the two most frequently employed laboratory measures of aggression, the PSAP was not discussed by Tedeschi and Quigley. These authors stated that laboratory aggression paradigms “under-represent the construct of aggression because they deal only with situations of retaliation which have been sanctioned by a third party legitimate authority (the experimenter) and because research participants are given no choice other than physical forms of harm-doing as a means of responding to attacks” (p. 163). It is our intent to rebut this and other criticisms that Tedeschi and Quigley have marshaled against laboratory aggression paradigms. The present article will provide a brief definition of construct validity, the manner in which it is assessed, and a description of pertinent laboratory measures of aggression. This will be followed by a delineation of our responses to Tedeschi and Quigley’s criticisms and a comprehensive review of studies that have directly and indirectly contributed to the construct validity of laboratory aggression paradigms.

Violence among individuals in substance abuse treatment: the role of alcohol and cocaine consumption

This study examined factors associated with expressed violence in the 90 days prior to substance abuse (SA) treatment among 125 men and 125 women recently enrolled in treatment. Approximately 85% of the sample reported a significant conflict situation, and over 32% reported an incident of physical violence. Both general alcohol and cocaine use patterns (on days not involving significant interpersonal conflict), as well as alcohol and cocaine use on the day of the violent incident, were associated with violence severity. Regression analyses revealed that race, education, age, and both general drinking and cocaine use patterns were associated with violence severity for the most severe violent incident reported. Similarly, regression analyses focusing on alcohol and cocaine use on the day of the most severe incident revealed that higher drinking levels, younger age, minority status, and the interaction of alcohol and cocaine use were associated with violence severity. The results provide important information regarding factors associated with expression of violence among men and women in SA treatment, and have implications regarding the assessment of violence risk factors. Further, the findings suggest that screening and intervention approaches for violence-related problems should be routine in SA treatment, and appear to be especially indicated for patients reporting alcohol consumption, and co-occurring alcohol and cocaine consumption.

Brief motivational interviewing intervention for peer violence and alcohol use in teens: one-year follow-up.

BACKGROUND AND OBJECTIVES: Emergency department (ED) visits present an opportunity to deliver brief interventions (BIs) to reduce violence and alcohol misuse among urban adolescents at risk for future injury. Previous analyses demonstrated that a BI resulted in reductions in violence and alcohol consequences up to 6 months. This article describes findings examining the efficacy of BIs on peer violence and alcohol misuse at 12 months. METHODS: Patients (14–18 years of age) at an ED reporting past year alcohol use and aggression were enrolled in the randomized control trial, which included computerized assessment, random assignment to control group or BI delivered by a computer or therapist assisted by a computer. The main outcome measures (at baseline and 12 months) included violence (peer aggression, peer victimization, violence-related consequences) and alcohol (alcohol misuse, binge drinking, alcohol-related consequences). RESULTS: A total of 3338 adolescents were screened (88% participation). Of those, 726 screened positive for violence and alcohol use and were randomly selected; 84% completed 12-month follow-up. In comparison with the control group, the therapist assisted by a computer group showed significant reductions in peer aggression (P < .01) and peer victimization (P < .05) at 12 months. BI and control groups did not differ on alcohol-related variables at 12 months. CONCLUSIONS: Evaluation of the SafERteens intervention 1 year after an ED visit provides support for the efficacy of computer-assisted therapist brief intervention for reducing peer violence.

Rates and Correlates of Violent Behaviors Among Adolescents Treated in an Urban Emergency Department

PURPOSE Violence is a leading cause of death for adolescents in inner-city settings. This article describes violent behaviors in relation to other risk behaviors (e.g., substance use) among adolescents screened in an urban emergency department (ED). METHODS Patients aged 14-18 years were approached to self-administer a computerized survey assessing violent behaviors (i.e., physical aggression), substance use (cigarettes, alcohol, marijuana), and weapon carriage. RESULTS A total of 1128 adolescents (83.8% participation rate; 45.9% male; 58.0% African-American) were surveyed. In the past year, 75.3% of adolescents reported peer violence, 27.6% reported dating violence, and 23.5% reported carrying a weapon. In the past year, 28.0% drank alcohol, 14.4% binge drank, 5.7% reported alcohol-related fighting, and 36.9% smoked marijuana. Logistic regression analyses predicting violent behaviors were significant. Teens reporting peer violence were more likely to be younger, African-American, on public assistance, carry a weapon, binge drink, and smoke marijuana. Teens reporting dating violence were more likely to be female, African-American, carry a weapon, binge drink, screen positive for alcohol problems, and smoke marijuana. Teens reporting alcohol-related fighting were more likely to carry a weapon, binge drink, screen positive for alcohol problems, and smoke marijuana. CONCLUSIONS Adolescents presenting to an urban ED have elevated rates of violent behaviors. Substance use (i.e., binge drinking and smoking marijuana) is an important risk factor for violent behaviors among urban adolescents. Universal screening and intervention protocols to address multiple risk behaviors, including violent behaviors and substance use, may be useful to prevent injury among adolescents presenting to the urban ED.

Prevalence and correlates of alcohol misuse among returning Afghanistan and Iraq Veterans

OBJECTIVE Several studies have reported high rates of alcohol misuse and low rates of substance use treatment among OEF/OIF military service members. This study assessed the prevalence and correlates of alcohol misuse and the factors associated with treatment utilization among recently returned National Guard service members. METHODS The sample included 585 members of the National Guard who volunteered to complete an anonymous survey assessing mental health and substance use problems, functional status, and past treatment experiences. Bivariate and multivariate logistic regression analyses were performed examining the significance of associations between alcohol misuse and mental health service use as outcomes and demographic variables, mental health symptoms, and military service characteristics as predictors. Barriers to treatment and factors facilitating treatment were also examined. RESULTS Thirty-six percent of the service members met criteria for alcohol misuse. Of those misusing alcohol, 31% reported receiving any mental health treatment and 2.5% reported receiving specific substance use treatment in the past year. The barrier to treatment most commonly endorsed by those misusing alcohol was concern that the information about treatment would appear in their records. Among those misusing alcohol who had received services, spouses were most commonly endorsed as facilitating the pursuit of care. CONCLUSIONS Rates of alcohol misuse are high and rates of substance use treatment are low among National Guard service members. Additional research is needed to identify means of overcoming barriers to care and establish more effective approaches to facilitate linkage to care and receipt of appropriate interventions.

Partner aggression among men and women in substance use disorder treatment: correlates of psychological and physical aggression and injury.

This study examined intimate partner aggression in a sample of 489 participants enrolled in substance use disorder treatment, and expands on prior research by including measures of various forms of aggression, a mixed gender sample (76% men, 24% women), and measurement of several potential risk domains. Aggression measures included both participant-partner and partner-to-participant psychological aggression, physical aggression and injury. Analyses focused on the role of distal and proximal risk factors, including demographics, history of childhood physical and sexual abuse, and family history of problems with alcohol, drugs and depression, as well as recent substance use and symptoms of depression. Overall rates of participant-partner psychological aggression (77%), physical aggression (54%) and injuring partners (33%) were high, as were rates of partner-to-participant psychological aggression (73%), physical aggression (51%), and injury (33%). Several distal (family history variables, physical abuse) and proximal factors (binge drinking, several different drugs, depressive symptoms) were bivariately related to most of the aggression measures. However, according to multivariate analyses predicting aggression and injury measures, binge drinking and cocaine use were the drugs significantly associated with most measures, depression symptoms also were related to most aggression and injury measures, and a history of reported childhood physical abuse was related to all frequency of aggression and injury measures among those reporting such behaviors. Overall, the high rates of aggression among both men and women observed in this study further illustrate the need for interventions targeting substance use and aggression, and for further research regarding the inter-relationships among substance, aggression and depressive symptoms.

Violence among men and women in substance use disorder treatment: A multi-level event-based analysis

BACKGROUND This study examined associations between acute alcohol and drug use and violence towards others in conflict incidents (overall, partner, and non-partner conflict incidents) by men and women recruited from substance use disorder (SUD) treatment. METHODS Semi-structured interviews were used to obtain details about interpersonal conflict incidents (substance use, whether specific conflicts were with intimate partners or non-partners) in the 180 days pre-treatment. Participants for this study were selected for screening positive for past-year violence (N=160; 77% men, 23% women). RESULTS Multi-level multinomial regression models showed that after adjusting for clustering within individual participants, the most consistent predictors of violence across models were acute cocaine use (significant for overall, intimate partner and non-partner models), acute heavy alcohol use (significant for overall and non-partner models), and male gender (significant in all models). CONCLUSIONS This study was the first to explicitly examine the role of acute alcohol and drug use across overall, partner and non-partner conflict incidents. Consistent with prior studies using a variety of methodologies, alcohol, cocaine use and male gender was most consistently and positively related to violence severity (e.g., resulting in injury). The results provide important and novel event-level information regarding the relationship between acute alcohol and specific drug use and the severity of violence in interpersonal conflict incidents.

Hazardous Drinking and Family Functioning in National Guard Veterans and Spouses Postdeployment

The current study examined rates of alcohol misuse among National Guard (NG) service members and their spouses/partners, concordance of drinking behaviors among couples, and the effects of alcohol misuse, depression, and posttraumatic stress disorder (PTSD) on three measures of family functioning. This study is important because it addresses the topics of heavy drinking and family functioning in an at-risk population-NG service members returning from a combat zone deployment. We surveyed NG service members (1,143) and their partners (674) 45-90 days after returning from a military deployment. Service member rates of hazardous drinking were 29.2% and spouses/partners 10.7%. Of the 661 linked couples, 26.2% were discrepant where only one member met the criteria for hazardous drinking and 5.4% were congruent for alcohol misuse where both members met hazardous drinking criteria. Service members belonging to either congruent or discrepant drinking groups were more distressed in their marriages/relationships than those in the nonhazardous group. In dyadic analyses, an unexpected partner effect was found for parenting outcomes; that is, when service members drink more, their spouses/partners are less stressed when it comes to parenting. Importantly, both service member and spouse/partner depression was significantly associated with negative family outcomes. Results from this study suggest that when working with these families, it is important to understand the drinking status of both soldier and spouse and to treat depression in addition to alcohol misuse.