Search Results

Author: Clapp, John D.
Resulting in 15 citations.
1. Clapp, John D.
Shillington, Audrey M.
A Public Health Model of Alcohol Use and Related Problems: Data from the National Longitudinal Survey of Youth
Journal of Child and Adolescent Substance Abuse 10,3 (2001): 21-41.
Also: http://www.tandfonline.com/doi/abs/10.1300/J029v10n03_02
Cohort(s): NLSY79 Young Adult
Publisher: Haworth Press, Inc.
Keyword(s): Alcohol Use; Modeling; Rosenberg Self-Esteem Scale (RSES) (see Self-Esteem); Youth Problems

Using data from the 1994 National Longitudinal Survey of Youth, this paper presents a public health model of alcohol intensity and attendant consequences among adolescents. We use path analyses to examine the influence of agent (beverage of choice), host (individual characteristics), and environment (contexts of drinking) on an index of alcohol intensity and three factor-based indexes of alcohol-related consequences. Our analyses suggest that males, adolescents who begin drinking at a younger age, and older adolescents drink with more intensity. Similarly, teenagers that drink in private contexts, perceive the majority of their friends to be drinkers, and prefer beer over other beverages tend to drink more intensely. Drinking in private contexts is also a contributing facto to Loss of Control and School/Work problems regardless of other predictors. Implications for prevention practice and future research are offered.
Bibliography Citation
Clapp, John D. and Audrey M. Shillington. "A Public Health Model of Alcohol Use and Related Problems: Data from the National Longitudinal Survey of Youth." Journal of Child and Adolescent Substance Abuse 10,3 (2001): 21-41.
2. Shillington, Audrey M.
Clapp, John D.
Beer and Bongs: Differential Problems Experienced by Older Adolescents Using Alcohol only Compared to Combined Alcohol and Marijuana Use
American Journal of Drug and Alcohol Abuse 28,2 (May 2002): 379-397.
Also: http://informahealthcare.com/doi/abs/10.1081/ADA-120002980
Cohort(s): NLSY79
Publisher: Marcel Dekker
Keyword(s): Adolescent Behavior; Alcohol Use; Behavioral Problems; Drug Use; Ethnic Differences

Permission to reprint the abstract has not been received from the publisher.

Alcohol and other drug problems experienced by adolescents who use only alcohol compared to those who use both alcohol and marijuana (A+M) is studied. Using the national longitudinal survey of youth 1994 data, forward multiple regression analyses revealed that impulsivity, A+M use (compared to alcohol-only use), age, sex, religiosity, frequency of substance use were associated with a higher number of behavioral problems. Youth with more alcohol problems were found to be binge drinkers, impulsive, more frequent alcohol users, and nonHispanic. Implications and future research needs are discussed. (Source: Biological Abstracts Database.)
Bibliography Citation
Shillington, Audrey M. and John D. Clapp. "Beer and Bongs: Differential Problems Experienced by Older Adolescents Using Alcohol only Compared to Combined Alcohol and Marijuana Use." American Journal of Drug and Alcohol Abuse 28,2 (May 2002): 379-397.
3. Shillington, Audrey M.
Clapp, John D.
Differential Outcomes for Adolescents: Alcohol Users Compared to Alcohol and Marijuana Users
Presented: Atlanta, GA, 5th Annual Conference of the Society for Social Work and Research, 2001
Cohort(s): NLSY79 Young Adult
Publisher: Society for Social Work and Research (SSWR)
Keyword(s): Alcohol Use; Peers/Peer influence/Peer relations; Substance Use

Permission to reprint the abstract has not been received from the publisher.

Purpose: Nosological efforts among mental health and substance use researchers have previously examined AOD problems based upon single-substance use. This is one of the first efforts to study the differences between single-substance uses (alcohol only) and poly-substance use (alcohol and marijuana). This is important considering the rise in marijuana use among youth. The literature on poly-substance use is scant and has been limited to college samples.

Methods: The data are from the twenty-year National Longitudinal Survey of Youth study selecting out youth aged 15 and older (N = 1672) in 1996 with analyses guided with the Person-In-Environment Model (individual, peer/family and environmental variables).

Results: Poly-substance users' ages at onset for both substances was one year younger than alcohol only users (but equivalent chronological ages). Significantly more binge drinking was reported by poly-substance users compared to alcohol-only users. Significantly more poly-substance users reported substance use related problems that were social (fighting, problems with family) responsibility (missed school) and legal (legal problems, drove drunk) in nature compared to alcohol-only users. Further, poly-substance users reported significantly more problems that were not a direct result of substance use (admission to a youth corrections institution, run-away, damaged property, fighting, theft, inflicting injury) compared to the alcohol-only users. Cluster analyses (for problem clusters) and logistic regression models will be conducted to identify unique risk and protective factors and problem clusters associated with each substance use pattern while controlling for use severity. A theoretically driven final model will be presented.

Implications: When designing adolescent intervention programs it's important to consider individual, peer and environmental factors that may contribute to alcohol and/or marijuana use and resultant problems. From a primary prevention perspective, information on characteristics of adolescents with different use patterns should not only add to our knowledge base but drive our prevention/intervention efforts.

Bibliography Citation
Shillington, Audrey M. and John D. Clapp. "Differential Outcomes for Adolescents: Alcohol Users Compared to Alcohol and Marijuana Users." Presented: Atlanta, GA, 5th Annual Conference of the Society for Social Work and Research, 2001.
4. Shillington, Audrey M.
Clapp, John D.
Following the NLSY Mothers: An Examination of Their Children's Cigarette Use
Presented: San Diego, CA, Society for Research on Nicotine and Tobacco Annual Meetings, 1999.
Also: http://www.srnt.org/events/abstracts99/index.htm
Cohort(s): Children of the NLSY79, NLSY79
Publisher: Society for Reseach on Nicotine and Tobacco (SRNT)
Keyword(s): Aid for Families with Dependent Children (AFDC); Behavioral Problems; Child Self-Administered Supplement (CSAS); Cigarette Use (see Smoking); Family Influences; Hispanics; Mothers, Behavior

Permission to reprint the abstract has not been received from the publisher.

This study investigates risk/protective factors related to cigarette use among children. The data for this study were derived from the ongoing National Longitudinal Survey of Youth. The offspring of these women are interviewed every two years since 1986. This study analyzes the data for 2,079 children aged 10 and older and their mothers. Using logistic regression we found for both males and females being Non-black, Non-Hispanic, reporting behavioral problems and older age were risk factor for using cigarettes. Among males: mother with a high school diploma was a protective factor and mother's lifetime history of cocaine use was a risk factor. Among females, protective factors included greater religiosity and close maternal relationship. Mother's lifetime marijuana use and ever using foodstamps were risk factors for females. Increasing number of behavioral problems was a risk factor for Blacks, Hispanics, and Caucasian children and adolescents. Having a close relationship with the mother was protective only for Hispanic children and religiosity was protective only for Caucasian children. Having a history of receiving AFDC and maternal cigarette use were both risk factors for Caucasian children only. Implications for future research and practice are discussed.
Bibliography Citation
Shillington, Audrey M. and John D. Clapp. "Following the NLSY Mothers: An Examination of Their Children's Cigarette Use." Presented: San Diego, CA, Society for Research on Nicotine and Tobacco Annual Meetings, 1999.
5. Shillington, Audrey M.
Clapp, John D.
Kicking the Camel: Adolescent Smoking Behaviors After Two Years
Journal of Child and Adolescent Substance Abuse 10,2 (2000): 53-80.
Also: http://www.tandfonline.com/doi/abs/10.1300/J029v10n02_05
Cohort(s): Children of the NLSY79, NLSY79 Young Adult
Publisher: Haworth Press, Inc.
Keyword(s): Adolescent Behavior; Child Self-Administered Supplement (CSAS); Cigarette Use (see Smoking); Hispanics; Peers/Peer influence/Peer relations

The Public Health Model views chemical dependency and acute substance problems as the interaction of three domains: the agent, the host and the environment. This model was used to examine the relationships between smoking severity - never smokers, former smokers and continued smokers - an host and environmental variables in a two-year follow-up study. Our results indicate that former smokers are more like never smokers on most of the risk and protective variables examined. Final anylases indicate that continued smokers are more likely to be Hispanic and Non-Black, Non-Hispanic, be older, to have a more distant maternal relationship, to have used alcohol, to feel peer pressure to try cigarettes and have substance using mothers at time 1 compared to never and former smokers. The implications of these results for prevention, practice and future research are discussed. NOTE: The dependent variable was drawn from the 1992 and 1994 CSAS and the 1994 Young Adult survey.
Bibliography Citation
Shillington, Audrey M. and John D. Clapp. "Kicking the Camel: Adolescent Smoking Behaviors After Two Years." Journal of Child and Adolescent Substance Abuse 10,2 (2000): 53-80.
6. Shillington, Audrey M.
Clapp, John D.
Maternal and Child Predictors of Adolescent Cigarette Use: Data from the NLSY Study
Working Paper, San Diego State University School of Social Work, July 1998
Cohort(s): Children of the NLSY79, NLSY79
Publisher: School of Social Work, San Diego State University
Keyword(s): Child Self-Administered Supplement (CSAS); Cigarette Use (see Smoking); Substance Use; Welfare

Permission to reprint the abstract has not been received from the publisher.

Also presented: Scientific Meeting for the College on Problems of Drug Dependence, Nashville, 1997

This study builds upon previous research using data from an on-going longitudinal study. Specifically, this study will compare pre-adolescent and adolescent smokers to non-smokers to understand: a) if there are maternal characteristics related to children's cigarette use, b)if there are child characteristics related to cigarette use, and c) if there are unique models predicting cigarette used across gender and racial groups

Bibliography Citation
Shillington, Audrey M. and John D. Clapp. "Maternal and Child Predictors of Adolescent Cigarette Use: Data from the NLSY Study." Working Paper, San Diego State University School of Social Work, July 1998.
7. Shillington, Audrey M.
Clapp, John D.
Maternal and Child Predictors of Adolescent Cigarette Use: Data from the NLSY Study
Presented: San Diego, CA, Society for Research on Nicotine and Tobacco Annual Meetings, Poster Session A, 1999
Cohort(s): Children of the NLSY79, NLSY79
Publisher: Society for Reseach on Nicotine and Tobacco (SRNT)
Keyword(s): Child Self-Administered Supplement (CSAS); Cigarette Use (see Smoking); Substance Use

Permission to reprint the abstract has not been received from the publisher.

Bibliography Citation
Shillington, Audrey M. and John D. Clapp. "Maternal and Child Predictors of Adolescent Cigarette Use: Data from the NLSY Study." Presented: San Diego, CA, Society for Research on Nicotine and Tobacco Annual Meetings, Poster Session A, 1999.
8. Shillington, Audrey M.
Clapp, John D.
Self-Report Stability of Adolescent Substance Use: Are There Differences for Gender, Ethnicity, and Age?
Drug and Alcohol Dependence 60,1 (July 2000): 19-27.
Also: http://www.sciencedirect.com/science/article/pii/S0376871600800046
Cohort(s): Children of the NLSY79, NLSY79 Young Adult
Publisher: Elsevier
Keyword(s): Alcohol Use; Child Self-Administered Supplement (CSAS); Cigarette Use (see Smoking); Drug Use; Ethnic Groups/Ethnicity; Hispanics; Substance Use

This study used the National Longitudinal Survey of Youth and is the first to examine a 2-year report stability of substance use among adolescents while stratifying for gender, ethnicity, and age. This study examined lifetime use and age at onset report stability, and the internal consistency of reports while excluding nonusers and incident cases (respondents who may have initiated substance use between the two reporting periods) from the analyses. Report agreement of lifetime use for each substance was over 80% and was highest among alcohol users and lowest for cigarette and marijuana users. Report agreement was higher for female compared to male cigarette users. External consistency of lifetime use of cigarettes and marijuana was higher for whites compared to Hispanic or African American adolescents. Internal consistency was high but lifetime use reports were more stable than age at onset reports.

NOTE: The sample consists of children of the NLSY79 who responded to both the Child Self-Administered Supplement (CSAS) in 1992 and the Young Adult questionnaire in 1994.

Bibliography Citation
Shillington, Audrey M. and John D. Clapp. "Self-Report Stability of Adolescent Substance Use: Are There Differences for Gender, Ethnicity, and Age?" Drug and Alcohol Dependence 60,1 (July 2000): 19-27.
9. Shillington, Audrey M.
Clapp, John D.
Reed, Mark B.
The Stability of Self-Reported Marijuana Use across Eight Years of the National Longitudinal Survey of Youth
Journal of Child and Adolescent Substance Abuse 20,5 (2011): 407-420.
Also: http://www.tandfonline.com/toc/wcas20/20/5
Cohort(s): Children of the NLSY79, NLSY79 Young Adult
Publisher: Taylor & Francis Group
Keyword(s): Adolescent Behavior; Child Self-Administered Supplement (CSAS); Drug Use; Gender Differences; Racial Differences; Self-Reporting; Substance Use

Permission to reprint the abstract has not been received from the publisher.

This study examined teen marijuana report stability over 8 years. The stability of self-reports refers to the consistency of self-reported use across several years. This study used fives waves of data across 8 years from the National Longitudinal Survey of Youth. Analyses were conducted to examine the internal or within-wave consistency as well as external or across-waves consistency for self-reported marijuana use. Further tests were conducted to identify if there were any differences for age, ethnicity, and sex for report consistency. Report stability was higher for lifetime use reports than the age of onset reports. Wave-by-wave differences revealed stability remained at acceptable levels in nearly all comparisons at agreement being about 75%. Overall, report agreement was higher for females, older adolescents, and non-Hispanic/non-black youths in bivariate analyses. However, only older chronological age remained consistently significantly associated with better report stability in multiple logistic regression models. Implications regarding misclassification of users for prevention programs and measurement issues are discussed.
Bibliography Citation
Shillington, Audrey M., John D. Clapp and Mark B. Reed. "The Stability of Self-Reported Marijuana Use across Eight Years of the National Longitudinal Survey of Youth." Journal of Child and Adolescent Substance Abuse 20,5 (2011): 407-420.
10. Shillington, Audrey M.
Clapp, John D.
Reed, Mark B.
Woodruff, Susan I.
Adolescent Alcohol Use Self-Report Stability: A Decade of Panel Study Data
Journal of Child and Adolescent Substance Abuse 20,1 (January 2011): 63-81.
Also: http://www.tandfonline.com/doi/abs/10.1080/1067828X.2011.534366
Cohort(s): Children of the NLSY79, NLSY79 Young Adult
Publisher: Haworth Press, Inc.
Keyword(s): Adolescent Behavior; Alcohol Use; Child Self-Administered Supplement (CSAS); Gender Differences; Life Course; Racial Differences; Self-Reporting

This study analyzed six waves of panel data from the National Longitudinal Survey of Youth (NLSY). These analyses were conducted to test the stability of self-reported lifetime use and age of onset. Intraclass correlation coefficients (ICCs) indicated that the stability of age of onset reports decreased with longer time frames between follow-ups. The percentage of youths who had discrepancies in self-reported ever use of alcohol at two-year follow-up ranged from 15% to 35%. Higher discrepancy rates were found for males and younger respondents. Differences in report stability as a function of race/ethnicity were minimal. Questions related to lifetime use and age of onset have implications for the study of lifetime trajectories of use and the timing of prevention programs. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Child & Adolescent Substance Abuse is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Bibliography Citation
Shillington, Audrey M., John D. Clapp, Mark B. Reed and Susan I. Woodruff. "Adolescent Alcohol Use Self-Report Stability: A Decade of Panel Study Data." Journal of Child and Adolescent Substance Abuse 20,1 (January 2011): 63-81.
11. Shillington, Audrey M.
Reed, Mark B.
Clapp, John D.
Self-Report Stability of Adolescent Cigarette Use Across Ten Years of Panel Study Data
Working Paper, Center for Alcohol and Other Drug Studies and Services, School of Social Work, College of Health and Human Services, San Diego State University, [N.D.].
Also: http://centerforaod.sdsu.edu/Paper-Cig-Report-Stability-Shillington-all.pdf
Cohort(s): NLSY79 Young Adult
Publisher: School of Social Work, San Diego State University
Keyword(s): Adolescent Behavior; Cigarette Use (see Smoking); Ethnic Differences; Gender Differences; Racial Differences; Self-Reporting; Smoking (see Cigarette Use)

Permission to reprint the abstract has not been received from the publisher.

This study is the first to examine adolescent cigarette report stability over ten years. Six waves of data were utilized from the National Longitudinal Survey of Youth. This study examined internal/logical consistency and external consistency. Report stability was higher for lifetime use reports than the age of onset reports. Wave-by-wave differences revealed stability increased across time with one third denying use in the first two wave comparisons but dropping to twenty percent by the last comparison. Overall, report agreement was higher for females, older adolescents, and Non-Hispanic/Non-Black youth. Implications regarding misclassification of users for prevention programs and measurement issues are discussed.
Bibliography Citation
Shillington, Audrey M., Mark B. Reed and John D. Clapp. "Self-Report Stability of Adolescent Cigarette Use Across Ten Years of Panel Study Data." Working Paper, Center for Alcohol and Other Drug Studies and Services, School of Social Work, College of Health and Human Services, San Diego State University, [N.D.].
12. Shillington, Audrey M.
Reed, Mark B.
Clapp, John D.
Self-Report Stability of Adolescent Cigarette Use Across Ten Years of Panel Study Data.
Journal of Child and Adolescent Substance Abuse 19,2 (April 2010): 171-191.
Also: http://www.tandfonline.com/doi/abs/10.1080/10678281003635089
Cohort(s): NLSY79 Young Adult
Publisher: Haworth Press, Inc.
Keyword(s): Adolescent Behavior; Cigarette Use (see Smoking); Gender Differences; Self-Reporting

This study is the first to examine adolescent cigarette report stability over 10 years. Six waves of data were utilized from the National Longitudinal Survey of Youth. This study examined internal/logical consistency and external consistency. Report stability was higher for lifetime use reports than the age of onset reports. Wave-by-wave differences revealed stability increased across time, with one-third denying use in the first two wave comparisons but dropping to 20% by the last comparison. Overall, report agreement was higher for females, older adolescents, and non-Hispanic/non-black youths. Implications regarding misclassification of users for prevention programs and measurement issues are discussed. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Child & Adolescent Substance Abuse is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Bibliography Citation
Shillington, Audrey M., Mark B. Reed and John D. Clapp. "Self-Report Stability of Adolescent Cigarette Use Across Ten Years of Panel Study Data." Journal of Child and Adolescent Substance Abuse 19,2 (April 2010): 171-191.
13. Shillington, Audrey M.
Reed, Mark B.
Clapp, John D.
Woodruff, Susan I.
Testing the Length of Time Theory of Recall Decay: Examining Substance Use Report Stability With 10 Years of National Longitudinal Survey of Youth Data
Substance Use and Misuse 46,9 (July 2011):1105-1112.
Also: http://informahealthcare.com/doi/abs/10.3109/10826084.2010.548436
Cohort(s): Children of the NLSY79, NLSY79 Young Adult
Publisher: Marcel Dekker
Keyword(s): Alcohol Use; Child Self-Administered Supplement (CSAS); Cigarette Use (see Smoking); Ethnic Differences; Modeling; Racial Differences; Self-Reporting; Smoking (see Cigarette Use); Time Theory

Permission to reprint the abstract has not been received from the publisher.

Aim:
This article examines whether the proportion of recanters increases (or decreases) as a function of time o [sic] test length of time theory. Sample: 2,221 US respondents in the National Longitudinal Survey of Youth child data. Bivariate and logistic regression analyses were used.
Results:
Among recanters, 50% of cigarette and alcohol users recanted use by 4 years, and 50% of marijuana users recanted by 3 years. Predictors of recanting was being Black or Hispanic and younger age. The theory was not supported. Further research is needed to identify potential reasons why adolescents recant their use is such a short time span. The study's limitations are noted.

Copyright of Substance Use & Misuse is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Bibliography Citation
Shillington, Audrey M., Mark B. Reed, John D. Clapp and Susan I. Woodruff. "Testing the Length of Time Theory of Recall Decay: Examining Substance Use Report Stability With 10 Years of National Longitudinal Survey of Youth Data." Substance Use and Misuse 46,9 (July 2011):1105-1112.
14. Shillington, Audrey M.
Roesch, Scott C.
Clapp, John D.
Woodruff, Susan I.
Typologies of Recanting of Lifetime Cigarette, Alcohol And Marijuana Use During a Six-Year Longitudinal Panel Study
Drug and Alcohol Dependence 118,2-3 (1 November 2011): 134-140.
Also: http://www.sciencedirect.com/science/article/pii/S0376871611001359
Cohort(s): Children of the NLSY79
Publisher: Elsevier
Keyword(s): Alcohol Use; Child Self-Administered Supplement (CSAS); Cigarette Use (see Smoking); Drug Use; Modeling, Growth Curve/Latent Trajectory Analysis; Self-Reporting

AIM: To identify if there are different typologies for adolescent self-reporters and recanters for alcohol, cigarette and marijuana use.

METHODS: This study is a secondary data analysis and utilized four waves of the National Longitudinal Survey of Youth child panel data. The study included adolescents aged ten and older who self-reported ever use of cigarettes (n=872), marijuana (n=854) or alcohol (n=837). Consistent responders were those who reported lifetime use of a specific substance and continued to report such use at each latter wave of data collection. Latent class analyses were utilized to investigate if there are different types of self-reporters for each substance class.

RESULTS: Three unique groups for each substance was identified. The first group of users, who had a late age of onset, tended to be consistent self-reporters across waves. Those who were early onset users of cigarettes and marijuana tended to recant their use while early onset alcohol users were consistent reporters. Those with moderate ages of onset had no consistent recanting patterns. The highest degree of recanting was found among the early onset marijuana users.

CONCLUSIONS: The results suggest that youth who begin their use at an earlier age may not be as reliable reporters as youth who initiate use at later ages. Our results suggest that the veracity of prevalence estimates for licit and illicit substances could be different depending on the age of the respondent.
Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.

Bibliography Citation
Shillington, Audrey M., Scott C. Roesch, John D. Clapp and Susan I. Woodruff. "Typologies of Recanting of Lifetime Cigarette, Alcohol And Marijuana Use During a Six-Year Longitudinal Panel Study." Drug and Alcohol Dependence 118,2-3 (1 November 2011): 134-140.
15. Shillington, Audrey M.
Woodruff, Susan I.
Clapp, John D.
Reed, Mark B.
Lemus, Hector
Self-Reported Age of Onset and Telescoping for Cigarettes, Alcohol, and Marijuana: Across Eight Years of the National Longitudinal Survey of Youth
Journal of Child and Adolescent Substance Abuse 21,4 (September 2012): 333-348.
Also: http://www.tandfonline.com/doi/abs/10.1080/1067828X.2012.710026
Cohort(s): NLSY79
Publisher: Taylor & Francis Group
Keyword(s): Adolescent Behavior; Age and Ageing; Alcohol Use; Drug Use; Smoking (see Cigarette Use)

Permission to reprint the abstract has not been received from the publisher.

Smoking, drinking, and illicit drug use are leading causes of morbidity and mortality, both during adolescence as well as later in life. The determination of how well national and local policy and intervention efforts address teen substance use depends largely on the collection of valid and accurate data. Assessments of substance use rely heavily on retrospective self-report measures, but the reliability and validity, however, may be limited by various sources of measurement error. This study utilizes four waves of data from the National Longitudinal Survey of Youth spanning eight years. Results from multiple linear regression analyses showed that the single most consistent variable associated with telescoping was the number of years since the substance was first reported. Time since first report was the single consistent variable and was strongly associated with telescoping in each wave-to-wave comparison for all three substances under study. Implications for policy and research are discussed.
Bibliography Citation
Shillington, Audrey M., Susan I. Woodruff, John D. Clapp, Mark B. Reed and Hector Lemus. "Self-Reported Age of Onset and Telescoping for Cigarettes, Alcohol, and Marijuana: Across Eight Years of the National Longitudinal Survey of Youth." Journal of Child and Adolescent Substance Abuse 21,4 (September 2012): 333-348.