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Dive into the research topics where Christopher W. Kahler is active.

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Featured researches published by Christopher W. Kahler.


Journal of Experimental Psychology: Applied | 2002

Evaluation of a Behavioral Measure of Risk Taking: The Balloon Analogue Risk Task (BART)

C. W. Lejuez; Jennifer P. Read; Christopher W. Kahler; Jerry B. Richards; Susan E. Ramsey; Gregory L. Stuart; David R. Strong; Richard A. Brown

The present study (N = 86) sought to evaluate a laboratory-based behavioral measure of risk taking (the Balloon Analogue Risk Task; BART) and to test associations between this measure and self-report measures of risk-related constructs as well as self-reported real-world risk behaviors. The BART evidenced sound experimental properties, and riskiness on the BART was correlated with scores on measures of sensation seeking, impulsivity, and deficiencies in behavioral constraint. Also, riskiness on the BART was correlated with the self-reported occurrence of addictive, health, and safety risk behaviors, with the task accounting for variance in these behaviors beyond that accounted for by demographics and self-report measures of risk-related constructs. These results indicate that the BART may be a useful tool in the assessment of risk taking.


Journal of Consulting and Clinical Psychology | 1997

Affiliation With Alcoholics Anonymous After Treatment: A Study of Its Therapeutic Effects and Mechanisms of Action

Jon Morgenstern; Erich Labouvie; Barbara S. McCrady; Christopher W. Kahler; Ronni M. Frey

Relatively little is known about how substance abuse treatment facilitates positive outcomes. This study examined the therapeutic effects and mechanisms of action of affiliation with Alcoholics Anonymous (AA) after treatment. Patients (N = 100) in intensive 12-step substance abuse treatment were assessed during treatment and at 1- and 6-month follow-ups. Results indicated that increased affiliation with AA predicted better outcomes. The effects of AA affiliation were mediated by a set of common change factors. Affiliation with AA after treatment was related to maintenance of self-efficacy and motivation, as well as to increased active coping efforts. These processes, in turn, were significant predictors of outcome. Findings help to illustrate the value of embedding a test of explanatory models in an evaluation study.


Experimental and Clinical Psychopharmacology | 2003

The Balloon Analogue Risk Task (BART) differentiates smokers and nonsmokers.

C. W. Lejuez; Will M. Aklin; Heather A. Jones; Jerry B. Richards; David R. Strong; Christopher W. Kahler; Jennifer P. Read

In trying to better understand why individuals begin and continue to smoke despite the obvious health consequences, researchers have become interested in identifying relevant personality variables, such as risk taking. In this study, the authors compared the ability of 2 behavioral measures of risk taking, the Bechara Gambling Task (BGT) and the Balloon Analogue Risk Task (BART), to differentiate smokers and nonsmokers. Self-report measures of impulsivity and sensation seeking were taken for comparison with the 2 behavioral risk-taking tasks. Results indicate that behavior on the BART, and not the BGT, was related to smoking status. Further, when considered in a logistic regression analysis, only the Sensation Seeking total score and the BART score contributed uniquely to the differentiation of smokers and nonsmokers.


Alcoholism: Clinical and Experimental Research | 2005

Toward efficient and comprehensive measurement of the alcohol problems continuum in college students: the brief young adult alcohol consequences questionnaire.

Christopher W. Kahler; David R. Strong; Jennifer P. Read

BACKGROUND Although a number of measures of alcohol problems in college students have been studied, the psychometric development and validation of these scales have been limited, for the most part, to methods based on classical test theory. In this study, we conducted analyses based on item response theory to select a set of items for measuring the alcohol problem severity continuum in college students that balances comprehensiveness and efficiency and is free from significant gender bias. METHOD We conducted Rasch model analyses of responses to the 48-item Young Adult Alcohol Consequences Questionnaire by 164 male and 176 female college students who drank on at least a weekly basis. An iterative process using item fit statistics, item severities, item discrimination parameters, model residuals, and analysis of differential item functioning by gender was used to pare the items down to those that best fit a Rasch model and that were most efficient in discriminating among levels of alcohol problems in the sample. RESULTS The process of iterative Rasch model analyses resulted in a final 24-item scale with the data fitting the unidimensional Rasch model very well. The scale showed excellent distributional properties, had items adequately matched to the severity of alcohol problems in the sample, covered a full range of problem severity, and appeared highly efficient in retaining all of the meaningful variance captured by the original set of 48 items. CONCLUSIONS The use of Rasch model analyses to inform item selection produced a final scale that, in both its comprehensiveness and its efficiency, should be a useful tool for researchers studying alcohol problems in college students. To aid interpretation of raw scores, examples of the types of alcohol problems that are likely to be experienced across a range of selected scores are provided.


Journal of the American Academy of Child and Adolescent Psychiatry | 2001

Natural Course of Alcohol Use Disorders From Adolescence to Young Adulthood

Paul Rohde; Peter M. Lewinsohn; Christopher W. Kahler; John R. Seeley; Richard A. Brown

OBJECTIVES To examine the course of alcohol use disorder (AUD) and determine the extent to which AUD in adolescence is a risk factor for AUD and other psychopathology in young adulthood. METHOD Nine hundred forty participants from a large community sample in western Oregon were interviewed twice during adolescence (14-18 years of age the first assessment; between 1987 and 1991) and once at age 24 (1993-1999). Between 1995 and 1998, parents were assessed for lifetime AUD. Participants were classified into nonproblematic use (NON), problem drinker (PROB) (symptoms of AUD but no diagnosis), and AUD groups. RESULTS Adolescent AUD significantly predicted AUD, substance use disorder, depression, and elevated levels of antisocial and borderline personality disorder symptoms by age 24. Compared with the NON group, adolescents in the PROB group were at increased risk for AUD, substance use disorder, depression, and antisocial personality disorder symptoms. However, the PROB group had lower rates of future AUD and antisocial personality disorder symptoms than the adolescent AUD group. Gender interactions were nonsignificant. Daily smoking and conduct/oppositional defiant disorders predicted future AUD, when adolescent AUD and other disorders were controlled. Paternal, but not maternal, AUD was associated with greater risk of future AUD. CONCLUSIONS For the majority of adolescents, AUD are not benign conditions that resolve over time. Assessment, treatment, and prevention recommendations are discussed.


Addictive Behaviors | 2001

Anxiety sensitivity: relationship to negative affect smoking and smoking cessation in smokers with past major depressive disorder.

Richard A. Brown; Christopher W. Kahler; Michael J. Zvolensky; C. W. Lejuez; Susan E. Ramsey

The present study evaluated whether anxiety sensitivity (AS) was related to negative reinforcement smoking motives and increased risk of relapse during the early stages of a quit attempt. Specifically, the role of AS was evaluated in 60 smokers with past major depressive disorder (MDD) during smoking cessation. Consistent with expectations, AS scores, as indexed by the 16-item Anxiety Sensitivity Index (ASI) [Behaviour Research and Therapy 24 (1986) 1], were positively correlated with smoking to reduce negative affect but were not significantly correlated with smoking for other reasons. Higher ASI scores also were associated with increased risk of lapsing during the first 7 days after quit day. Results suggest that smokers with heightened levels of AS may smoke more often to manage negative moods and may be less able to tolerate early withdrawal symptoms, specifically during early stages of a quit attempt.


Psychology of Addictive Behaviors | 2009

Self-efficacy and smoking cessation: a meta-analysis.

Chad J. Gwaltney; Jane Metrik; Christopher W. Kahler; Saul Shiffman

According to relapse models, self-efficacy (SE), or confidence in ones ability to abstain, should predict the outcome of an attempt to quit smoking. We reviewed 54 studies that prospectively examined this relationship. The relationship between SE and future smoking depended upon the population studied and the timing of the SE assessment. The relationship between SE and future smoking was modest when SE was assessed prior to a quit attempt; SE scores were .21 standard deviation units (SD) higher for those not smoking at follow-up than for those who were smoking. The relationship was stronger (.47 SD) when SE was assessed post-quit. However, this effect was diminished when only abstainers at the time of the SE assessment were included in analysis (.28 SD). Controlling for smoking status at the time of SE assessment substantially reduced the relationship between SE and future smoking. Although SE has a reliable association with future abstinence, it is less robust than expected. Many studies may overestimate the relationship by failing to appropriately control for smoking behavior at the time of the SE assessment. (PsycINFO Database Record (c) 2009 APA, all rights reserved).


Journal of Abnormal Psychology | 2005

Distress tolerance as a predictor of early treatment dropout in a residential substance abuse treatment facility

Stacey B. Daughters; C.W. Lejuez; Marina A. Bornovalova; Christopher W. Kahler; David R. Strong; Richard A. Brown

A large percentage of individuals who enter residential substance abuse treatment drop out before completing treatment. Given that early treatment dropout places individuals at an increased risk for relapse, identifying the mechanisms underlying treatment dropout would have several important theoretical and clinical implications. In the current study, the authors examined levels of psychological and physical distress tolerance as a predictor of early treatment dropout in a residential substance abuse treatment facility. In a sample of 122 individuals entering a residential substance abuse treatment facility, level of psychological distress tolerance was predictive of early treatment dropout above and beyond relevant self-report variables. There was no relationship between physical distress tolerance and early treatment dropout. Implications for future studies and treatment development or modification are discussed.


Journal of Consulting and Clinical Psychology | 2010

Randomized Controlled Trial of Behavioral Activation Smoking Cessation Treatment for Smokers with Elevated Depressive Symptoms

Laura MacPherson; Matthew T. Tull; Alexis K. Matusiewicz; Samantha A. Rodman; David R. Strong; Christopher W. Kahler; Derek R. Hopko; Michael J. Zvolensky; Richard A. Brown; C.W. Lejuez

OBJECTIVE Depressive symptoms are associated with poor smoking cessation outcomes, and there remains continued interest in behavioral interventions that simultaneously target smoking and depressive symptomatology. In this pilot study, we examined whether a behavioral activation treatment for smoking (BATS) can enhance cessation outcomes. METHOD A sample of 68 adult smokers with mildly elevated depressive symptoms (M = 43.8 years of age; 48.5% were women; 72.7% were African American) seeking smoking cessation treatment were randomized to receive either BATS paired with standard treatment (ST) smoking cessation strategies including nicotine replacement therapy (n = 35) or ST alone including nicotine replacement therapy (n = 33). BATS and ST were matched for contact time and included 8 sessions of group-based treatment. Quit date was assigned to occur at Session 4 for each treatment condition. Participants completed a baseline assessment; furthermore, measures of smoking cessation outcomes (7-day verified point-prevalence abstinence), depressive symptoms (Beck Depression Inventory-II; Beck, Steer, & Brown, 1996), and enjoyment from daily activities (Environmental Reward Observation Scale; Armento & Hopko, 2007) were obtained at 1, 4, 16, and 26 weeks post assigned quit date. RESULTS Across the follow-ups over 26 weeks, participants in BATS reported greater smoking abstinence (adjusted odds ratio = 3.59, 95% CI [1.22, 10.53], p = .02) than did those in ST. Participants in BATS also reported a greater reduction in depressive symptoms (B = -1.99, SE = 0.86, p = .02) than did those in ST. CONCLUSIONS Results suggest BATS is a promising intervention that may promote smoking cessation and improve depressive symptoms among underserved smokers of diverse backgrounds.


Journal of Clinical Child and Adolescent Psychology | 2007

Reliability and Validity of the Youth Version of the Balloon Analogue Risk Task (BART–Y) in the Assessment of Risk-Taking Behavior Among Inner-City Adolescents

C. W. Lejuez; Will M. Aklin; Stacey B. Daughters; Michael J. Zvolensky; Christopher W. Kahler; Marya Gwadz

This study examined the reliability and validity of the youth version of the Balloon Analogue Risk Task (BART–Y) for assessing adolescent risk behaviors among a sample of 98 inner-city African American adolescents (M age = 14.8, SD = 1.5). In addition to a relation with sensation seeking, BART–Y responding evidenced a significant relation with a composite of risk behaviors across substance use, sexual behavior, delinquency, and health domains. BART–Y responding also explained unique variance in a composite of these risk behaviors above and beyond demographic variables and risk-related personality constructs, including sensation seeking and impulsivity.

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Richard A. Brown

University of Texas at Austin

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Adam M. Leventhal

University of Southern California

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Jennifer P. Read

State University of New York System

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