Search Results

Author: Huang, David Y.C.
Resulting in 13 citations.
1. Hara, Motoaki
Huang, David Y.C.
Weiss, Robert E.
Hser, Yih-Ing
Concurrent Life-Course Trajectories of Employment and Marijuana-Use: Exploring Interdependence of Longitudinal Outcomes
Journal of Substance Abuse Treatment 45,5 (November-December 2013): 426-432.
Also: http://www.sciencedirect.com/science/article/pii/S0740547213001153
Cohort(s): NLSY79
Publisher: Elsevier
Keyword(s): Drug Use; Employment; Labor Force Participation

This study analyzes data on 7661 individuals who participated in the 1979 National Longitudinal Survey of Youth (NLSY79) to estimate trajectories of employment and marijuana-use over a 17-year period. Bivariate random intercept and slope modeling is applied to examine concurrently the cross-correlation between the two concurrent longitudinal trajectories from age 23 to 39. Parameter estimates indicate baseline level (at age 23) of employment to be negatively correlated with marijuana, suggesting marijuana-use is associated with lower workforce productivity at age 23. The longitudinal employment slope is positively correlated with employment intercept for both males and females, indicating that survey participants with higher levels of employment at age 23 are more likely to have a positive impact on employment trajectory over time. For males, however, the employment slope is also significantly correlated with marijuana intercept (r = − 0.07), indicating marijuana-use in early adulthood may uniquely lower workforce productivity over age.
Bibliography Citation
Hara, Motoaki, David Y.C. Huang, Robert E. Weiss and Yih-Ing Hser. "Concurrent Life-Course Trajectories of Employment and Marijuana-Use: Exploring Interdependence of Longitudinal Outcomes ." Journal of Substance Abuse Treatment 45,5 (November-December 2013): 426-432.
2. Huang, David Y.C.
Evans, Elizabeth
Hara, Motoaki
Weiss, Robert E.
Hser, Yih-Ing
Employment Trajectories: Exploring Gender Differences and Impacts of Drug Use
Journal of Vocational Behavior 79,1 (August 2011): 277-289.
Also: http://www.sciencedirect.com/science/article/pii/S0001879110002022
Cohort(s): NLSY79
Publisher: Elsevier
Keyword(s): Drug Use; Employment; Gender Differences; Modeling, Growth Curve/Latent Trajectory Analysis; Substance Use

This study investigated the impact of drug use on employment over 20 years among men and women, utilizing data on 7661 participants in the National Longitudinal Survey of Youth. Growth mixture modeling was applied, and five distinct employment trajectory groups were identified for both men and women. The identified patterns were largely similar for men and women except that a U-shape employment trajectory was uniquely identified for women. Early-initiation drug users, users of "hard" drugs, and frequent drug users were more likely to demonstrate consistently low levels of employment, and the negative relationship between drug use and employment was more apparent among men than women. Also, positive associations between employment and marriage became more salient for men over time, as did negative associations between employment and childrearing among women. Processes are dynamic and complex, suggesting that throughout the life course, protective factors that reduce the risk of employment problems emerge and change, as do critical periods for maximizing the impact of drug prevention and intervention efforts. [Copyright © Elsevier]

Copyright of Journal of Vocational Behavior is the property of Academic Press Inc. 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
Huang, David Y.C., Elizabeth Evans, Motoaki Hara, Robert E. Weiss and Yih-Ing Hser. "Employment Trajectories: Exploring Gender Differences and Impacts of Drug Use." Journal of Vocational Behavior 79,1 (August 2011): 277-289.
3. Huang, David Y.C.
Lanza, H. Isabella
Anglin, M. Douglas
Association Between Adolescent Substance Use and Obesity in Young Adulthood: A Group-based Dual Trajectory Analysis
Addictive Behaviors 38,11 (November 2013): 2653-2660.
Also: http://www.sciencedirect.com/science/article/pii/S0306460313001846
Cohort(s): Children of the NLSY79, NLSY79 Young Adult
Publisher: Elsevier
Keyword(s): Alcohol Use; Body Mass Index (BMI); Family Income; Modeling, Biometric; Modeling, Trajectory analysis; Obesity; Smoking (see Cigarette Use); Substance Use; Weight

Purpose: This study investigated whether and how trajectories of substance use in adolescence were associated with obesity trajectories in young adulthood. We hypothesized that: (1) exposure to persistent substance use throughout adolescence may heighten obesity risk in young adulthood; and (2) such associations may differ once gender, ethnicity, socioeconomic status, and obesity status in adolescence, are considered.

Methods: The study included 5141 adolescents from the child sample of the 1979 National Longitudinal Survey of Youth and utilized biennial data across the 12 assessments (1986–2008) to examine trajectories of substance use behaviors (i.e., cigarette smoking, alcohol use, and marijuana use) from ages 12 to 18 and obesity trajectories from ages 20 to 24. Group-based dual trajectory modeling was applied to examine sequential associations of trajectories of each type of substance use behavior with obesity trajectories.

Results: Three distinctive trajectory patterns were respectively identified for cigarette smoking, alcohol use, and marijuana use from ages 12 to 18, as well as for obesity status (BMI ≥ 30) from ages 20 to 24. Taking into account gender, ethnicity, socioeconomic status, and obesity status in adolescence, adolescents with the most problematic smoking trajectory (High-decreasing) were more likely to exhibit a High-obesity trajectory from ages 20 to 24. Also, adolescents with an Increasing marijuana use trajectory were more likely to exhibit an Increased obesity trajectory in young adulthood.

Conclusions: The current study demonstrates that adolescent substance use is associated with subsequent obesity in young adulthood. The associations appear to differ based on the type of substance use and patterns of use.

Bibliography Citation
Huang, David Y.C., H. Isabella Lanza and M. Douglas Anglin. "Association Between Adolescent Substance Use and Obesity in Young Adulthood: A Group-based Dual Trajectory Analysis." Addictive Behaviors 38,11 (November 2013): 2653-2660.
4. Huang, David Y.C.
Lanza, H. Isabella
Anglin, M. Douglas
Trajectory of Adolescent Obesity: Exploring the Impact of Prenatal to Childhood Experiences
Journal of Child and Family Studies 23,6 (August 2014): 1090-1101.
Also: http://link.springer.com/article/10.1007/s10826-013-9766-6
Cohort(s): Children of the NLSY79, NLSY79 Young Adult
Publisher: Springer
Keyword(s): Alcohol Use; Birthweight; Body Mass Index (BMI); CESD (Depression Scale); Child Health; Cigarette Use (see Smoking); Depression (see also CESD); Discipline; Drug Use; Maternal Employment; Modeling, Multilevel; Mothers, Behavior; Mothers, Health; Obesity; Parent Supervision/Monitoring; Parent-Child Interaction; Pre-natal Care/Exposure; Pre/post Natal Behavior; Smoking (see Cigarette Use); Substance Use; Television Viewing

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

This study examined longitudinal associations of prenatal exposures as well as childhood familial experiences with obesity status from ages 10 to 18. Hierarchical generalized linear modeling was applied to examine 5,156 adolescents from the child sample of the 1979 National Longitudinal Survey of Youth. Higher maternal weight, maternal smoking during pregnancy, lower maternal education, and lack of infant breastfeeding were contributors to elevated adolescent obesity risk in early adolescence. However, maternal age, high birth weight of child, and maternal annual income exhibited long-lasting impact on obesity risk over time throughout adolescence. Additionally, childhood familial experiences were significantly related to risk of adolescent obesity. Appropriate use of family rules in the home and parental engagement in children’s daily activities lowered adolescent obesity risk, but excessive television viewing heightened adolescent obesity risk. Implementation of consistent family rules and parental engagement may benefit adolescents at risk for obesity.
Bibliography Citation
Huang, David Y.C., H. Isabella Lanza and M. Douglas Anglin. "Trajectory of Adolescent Obesity: Exploring the Impact of Prenatal to Childhood Experiences." Journal of Child and Family Studies 23,6 (August 2014): 1090-1101.
5. Huang, David Y.C.
Lanza, H. Isabella
Murphy, Debra A.
Hser, Yih-Ing
Parallel Development of Risk Behaviors in Adolescence: Potential Pathways to Co-occurrence
International Journal of Behavioral Development 36,4 (July 2012): 247-257.
Also: http://jbd.sagepub.com/content/36/4/247
Cohort(s): NLSY97
Publisher: Sage Publications
Keyword(s): Adolescent Behavior; Adolescent Sexual Activity; Alcohol Use; Delinquency/Gang Activity; Depression (see also CESD); Drug Use; Risk-Taking

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

This study used data from 5,382 adolescents from the 1997 United States (US) National Longitudinal Survey of Youth (NLSY97) to investigate developmental pathways of alcohol use, marijuana use, sexual risk behaviors, and delinquency across ages 14 to 20; examine interrelationships among these risk behaviors across adolescence; and evaluate association between risk behavior trajectories and depressive symptoms in adolescence. Group-based dual trajectory modeling, examining trajectories of two outcomes over time, revealed strong interrelationships among developmental trajectories of the four risk behaviors, and indicated potential pathways to co-occurring risk behaviors. Adolescents with higher levels of alcohol use or marijuana use were more likely to engage in higher levels of early sexual risk-taking and delinquency. Moreover, adolescents involved in higher levels of delinquency were at higher risk for engaging in early sexual risk-taking. Also, belonging to the highest risk trajectory of any of the four risk behaviors was positively associated with depressive symptoms in adolescence.
Bibliography Citation
Huang, David Y.C., H. Isabella Lanza, Debra A. Murphy and Yih-Ing Hser. "Parallel Development of Risk Behaviors in Adolescence: Potential Pathways to Co-occurrence." International Journal of Behavioral Development 36,4 (July 2012): 247-257.
6. Huang, David Y.C.
Lanza, H. Isabella
Wright-Volel, Kynna
Anglin, M. Douglas
Development of Obesity and Risk Behaviors in Adolescence
Presented: Palm Springs CA, Annual Meeting of The College on Problems of Drug Dependence (CPDD), June 2012
Cohort(s): Children of the NLSY79, NLSY79 Young Adult
Publisher: College on Problems of Drug Dependence
Keyword(s): Alcohol Use; Body Mass Index (BMI); CESD (Depression Scale); Child Health; Cigarette Use (see Smoking); Dating; Delinquency/Gang Activity; Depression (see also CESD); Drug Use; Obesity; Pearlin Mastery Scale; Peers/Peer influence/Peer relations; Risk-Taking; Rosenberg Self-Esteem Scale (RSES) (see Self-Esteem); Sexual Behavior; Substance Use

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

Aims: This study examines pathways of obesity among U.S. children from age 6 to 18 and associations of such pathways with substance use, delinquency and psychosocial health in adolescence.

Methods: Using group-based trajectory modeling on obesity status (BMI percentile≥ 95%) from age 6 to 18, the study examines trajectories of obesity among 5,156 adolescents from the child sample of the 1979 National Longitudinal Survey of Youth (NLSY79).

Bibliography Citation
Huang, David Y.C., H. Isabella Lanza, Kynna Wright-Volel and M. Douglas Anglin. "Development of Obesity and Risk Behaviors in Adolescence." Presented: Palm Springs CA, Annual Meeting of The College on Problems of Drug Dependence (CPDD), June 2012.
7. Huang, David Y.C.
Lanza, H. Isabella
Wright-Volel, Kynna
Anglin, M. Douglas
Developmental Trajectories of Childhood Obesity and Risk Behaviors in Adolescence
Journal of Adolescence 36,1 (February 2013): 139-148.
Also: http://www.ncbi.nlm.nih.gov/pubmed/23199644
Cohort(s): Children of the NLSY79, NLSY79 Young Adult
Publisher: Elsevier
Keyword(s): Alcohol Use; Body Mass Index (BMI); CESD (Depression Scale); Child Health; Cigarette Use (see Smoking); Dating; Delinquency/Gang Activity; Depression (see also CESD); Drug Use; Obesity; Pearlin Mastery Scale; Peers/Peer influence/Peer relations; Risk-Taking; Rosenberg Self-Esteem Scale (RSES) (see Self-Esteem); Sexual Behavior; Smoking (see Cigarette Use); Substance Use

Using group-based trajectory modeling, this study examined 5156 adolescents from the child sample of the 1979 National Longitudinal Survey of Youth to identify developmental trajectories of obesity from ages 6-18 and evaluate associations of such trajectories with risk behaviors and psychosocial health in adolescence. Four distinctive obesity trajectories were identified: "Chronically Obese," "Decreasing," "Increasing," and "Non-obese." Males were overrepresented in the Chronically Obese and Increasing groups; females were overrepresented in the Decreasing group. African-Americans were overrepresented in the Chronically Obese, Increasing, and Decreasing groups; in contrast, Whites were overrepresented in the Non-obese group. Obesity trajectories were not associated with greater trends in alcohol use, marijuana use, or delinquency, but Chronically Obese adolescents showed a greater increase in cigarette smoking over time compared to other trajectories. The Increasing trajectory, representing a transition into obesity status from childhood to adolescence, was associated with poorer psychosocial health compared to other trajectories.
Bibliography Citation
Huang, David Y.C., H. Isabella Lanza, Kynna Wright-Volel and M. Douglas Anglin. "Developmental Trajectories of Childhood Obesity and Risk Behaviors in Adolescence." Journal of Adolescence 36,1 (February 2013): 139-148.
8. Huang, David Y.C.
Murphy, Debra A.
Hser, Yih-Ing
Developmental Trajectory of Sexual Risk Behaviors From Adolescence to Young Adulthood
Youth and Society 44,4 (December 2012): 479-499.
Also: http://yas.sagepub.com/content/44/4/479.abstract
Cohort(s): NLSY97
Publisher: Sage Publications
Keyword(s): Alcohol Use; Delinquency/Gang Activity; Drug Use; Risk-Taking; Sexual Activity; Sexual Behavior

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

This study examined the trajectories of sexual risk behaviors among adolescents from ages 15 to 23 and factors associated with those trajectories. The sample was 5,419 adolescents from the 1997 National Longitudinal Survey of Youth. Using group-based trajectory modeling, five distinctive trajectory groups were identified. The High group had a high and increased risk trajectory over the observed ages. The Decreased group had a risk trajectory that accelerated before age 19, but decreased afterwards. The risk trajectories of the Increased-Early and Increased-Late groups were low at age 15 but increased significantly starting at ages 16 and 18 for the groups, respectively. Participants in the Low group remained at low risk over time. Sexual risk behaviors were also positively associated with alcohol use, marijuana use, and delinquency. Results highlight the need for intervention efforts to consider developmental timing of sexual risk behaviors and their associations with other problem behaviors.
Bibliography Citation
Huang, David Y.C., Debra A. Murphy and Yih-Ing Hser. "Developmental Trajectory of Sexual Risk Behaviors From Adolescence to Young Adulthood." Youth and Society 44,4 (December 2012): 479-499.
9. Huang, David Y.C.
Murphy, Debra A.
Hser, Yih-Ing
Parental Monitoring During Early Adolescence Deters Adolescent Sexual Initiation: Discrete-Time Survival Mixture Analysis
Journal of Child and Family Studies 20,4 (August 2011): 511-520.
Also: http://web.ebscohost.com/ehost/detail?sid=5355e362-ae68-4223-aa4d-e6639b118943%40sessionmgr13&vid=1&hid=13&bdata=JnNpdGU9ZWhvc3QtbGl2ZQ%3d%3d#db=ehh&AN=62544454
Cohort(s): NLSY97
Publisher: Springer
Keyword(s): Adolescent Sexual Activity; Age at First Intercourse; Behavioral Differences; Behavioral Problems; Delinquency/Gang Activity; Ethnic Differences; Modeling; Parent Supervision/Monitoring; Racial Differences; Risk-Taking; Substance Use

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

We used discrete-time survival mixture modeling to examine 5,305 adolescents from the 1997 National Longitudinal Survey of Youth regarding the impact of parental monitoring during early adolescence (ages 14-16) on initiation of sexual intercourse and problem behavior engagement (ages 14-23). Four distinctive parental-monitoring groups were identified and labeled as 'High,' 'Increasing,' 'Decreasing,' and 'Low'. About 68% of adolescents received a high level of parental monitoring from ages 14 to 16 (High), 6 and 9% respectively exhibited an accelerated (Increasing) and a decelerated trajectory (Decreasing), and 17% had consistently low parental monitoring (Low). Relative to participants in the Low group, adolescents in the High group delayed sexual initiation by 1.5 years. Males, relative to females, were more likely to have had a low trajectory of parental monitoring, and were more likely to initiate sexual intercourse before age 14. In contrast to White Adolescents, Hispanics and Blacks were less likely to receive High parental monitoring, and had a higher rate of early sexual initiation before age 14. The study demonstrates the temporal relationship of parental monitoring with adolescent sexual initiation from a longitudinal perspective. An increase of parental monitoring across ages is accompanied with a decrease of sexual risk. The continual high level of parental monitoring from ages 14 to 16 also mitigated the risk of engagement in substance use and delinquent behaviors from ages 14 to 23. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Child & Family Studies is the property of Springer Science & Business Media B.V. 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 ori ginal published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Bibliography Citation
Huang, David Y.C., Debra A. Murphy and Yih-Ing Hser. "Parental Monitoring During Early Adolescence Deters Adolescent Sexual Initiation: Discrete-Time Survival Mixture Analysis." Journal of Child and Family Studies 20,4 (August 2011): 511-520.
10. Lanza, H. Isabella
Huang, David Y.C.
Is Obesity Associated With School Dropout? Key Developmental and Ethnic Differences
Journal of School Health 85,10 (October 2015): 663-670.
Also: http://onlinelibrary.wiley.com/doi/10.1111/josh.12295/abstract
Cohort(s): Children of the NLSY79, NLSY79 Young Adult
Publisher: Blackwell Publishing, Inc. => Wiley Online
Keyword(s): Body Mass Index (BMI); Dropouts; Educational Attainment; Ethnic Differences; High School Completion/Graduates; Obesity

Background: We aimed to expand the literature on child obesity and school outcomes by examining associations between obesity and high school dropout, including the role of obesity onset and duration as well as ethnicity.

Method: Data on 5066 children obtained between 1986 and 2010 from the child cohort of the 1979 National Longitudinal Study of Youth (NLSY79) were analyzed. Group-based trajectory analysis identified obesity trajectories from 6 to 18 years. School completion information from age 14 into young adulthood was used to calculate school dropout. Chi-square and pairwise comparison tests were used to identify significant associations between obesity trajectories and school dropout.

Results: Adolescents belonging to an increasing trajectory (adolescent-onset obesity) had a higher likelihood of dropping out of high school compared with those belonging to chronic, decreasing (childhood-only obesity), and nonobese trajectories. This association was particularly salient among white adolescents.

Conclusions: Obesity onset during early adolescence increased risk of high school dropout. White adolescents were particularly vulnerable. Given that early adolescence is marked by significant biological and social changes, future research should seek to identify the underlying processes linking adolescent obesity and school dropout to decrease school dropout risk among this vulnerable population.

Bibliography Citation
Lanza, H. Isabella and David Y.C. Huang. "Is Obesity Associated With School Dropout? Key Developmental and Ethnic Differences." Journal of School Health 85,10 (October 2015): 663-670.
11. Lanza, H. Isabella
Huang, David Y.C.
Murphy, Debra A.
Hser, Yih-Ing
A Latent Class Analysis of Maternal Responsiveness and Autonomy-Granting in Early Adolescence: Prediction to Later Adolescent Sexual Risk-Taking
Journal of Early Adolescence 33,3 (April 2013): 404-428.
Also: http://jea.sagepub.com/content/33/3/404.abstract
Cohort(s): NLSY97
Publisher: Sage Publications
Keyword(s): Adolescent Sexual Activity; Modeling, Latent Class Analysis/Latent Transition Analysis; Parent Supervision/Monitoring; Parental Influences; Risk-Taking; Sexual Activity

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

The present study sought to extend empirical inquiry related to the role of parenting on adolescent sexual risk-taking by using latent class analysis (LCA) to identify patterns of adolescent-reported mother responsiveness and autonomy-granting in early adolescence and examine associations with sexual risk-taking in mid- and late-adolescence. Utilizing a sample of 12- to 14-year-old adolescents (N = 4,743) from the 1997 National Longitudinal Survey of Youth (NLSY97), results identified a four-class model of maternal responsiveness and autonomy-granting: low responsiveness/high autonomy-granting, moderate responsiveness/moderate autonomy-granting, high responsiveness/low autonomy-granting, high responsiveness/moderate autonomy-granting. Membership in the low responsiveness/high autonomy-granting class predicted greater sexual risk-taking in mid- and late-adolescence compared to all other classes, and membership in the high responsiveness/ moderate autonomy-granting class predicted lower sexual risk-taking. Gender and ethnic differences in responsiveness and autonomy-granting class membership were also found, potentially informing gender and ethnic disparities of adolescent sexual risk-taking.
Bibliography Citation
Lanza, H. Isabella, David Y.C. Huang, Debra A. Murphy and Yih-Ing Hser. "A Latent Class Analysis of Maternal Responsiveness and Autonomy-Granting in Early Adolescence: Prediction to Later Adolescent Sexual Risk-Taking." Journal of Early Adolescence 33,3 (April 2013): 404-428.
12. Murphy, Debra A.
Brecht, Mary-Lynn
Herbeck, Diane M.
Huang, David Y.C.
Trajectories of HIV Risk Behavior from Age 15 to 25 in the National Longitudinal Survey of Youth Sample
Journal of Youth and Adolescence 38,9 (October 2009): 1226-1239.
Also: http://www.springerlink.com/content/55uv2631025x1645/
Cohort(s): NLSY97
Publisher: Kluwer Academic Publishers
Keyword(s): Adolescent Sexual Activity; Alcohol Use; Immigrants; Military Personnel; Racial Differences; Risk-Taking; Rural/Urban Differences; Sexual Activity; Sexual Behavior; Sexually Transmitted Diseases (STDs); Teenagers

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

This study utilized data from the National Longitudinal Survey of Youth to investigate youth risk trajectories for HIV and factors associated with different trajectories. The sample ( N = 8,208) was 49.2% female, with a mean age of 14.31 ( SD = 1.48). A group-based trajectory model was applied, which identified four distinct trajectories for both males and females: (1) consistently higher sexual risk levels, increasing to early adulthood followed by some decrease ("high"); (2) a short period of increase to late teens, followed by a longer period of decrease ("decreased"); (3) an initially slow increase, with the increase accelerating by late teens, and a slight decline beginning in early adulthood ("increased"); and (4) consistently lowest levels of sexual risk ("low"). More African Americans were found among the decreased trajectory group; among the low risk group a higher number of youth came from families with parents who spoke a language other than English. The high-risk group had a higher percentage of subjects in non-metropolitan areas and highest alcohol use. Among males, being employed and being in the military were associated with inclusion in the high-risk group. Results have implications for specializing prevention strategies for youth with different patterns of sexual risk. [ABSTRACT FROM AUTHOR]
Bibliography Citation
Murphy, Debra A., Mary-Lynn Brecht, Diane M. Herbeck and David Y.C. Huang. "Trajectories of HIV Risk Behavior from Age 15 to 25 in the National Longitudinal Survey of Youth Sample." Journal of Youth and Adolescence 38,9 (October 2009): 1226-1239.
13. Murphy, Debra A.
Brecht, Mary-Lynn
Huang, David Y.C.
Herbeck, Diane M.
Trajectories of Delinquency from Age 14 to 23 in the National Longitudinal Survey of Youth Sample
International Journal of Adolescence and Youth 17,1 (March 2012): 47-62.
Also: http://www.tandfonline.com/doi/abs/10.1080/02673843.2011.649401
Cohort(s): NLSY97
Publisher: Taylor & Francis Group
Keyword(s): Attitudes; Delinquency/Gang Activity; Neighborhood Effects; Parental Influences; Religious Influences; Substance Use

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

This study utilised data from the National Longitudinal Survey of Youth to investigate risk trajectories for delinquency and factors associated with different trajectories, particularly substance use. The sample (n = 8984) was 49% female. A group-based trajectory model was applied, which identified four distinct trajectories for both males and females: a High group with delinquency rates consistently higher than other groups, with some decrease across the age range; a Decreased group, beginning at high levels with substantial decrease to near zero; a Moderate group, experiencing some decline but remaining at moderate rates of delinquency through most of the age range; and a consistently Low group, having low rates of delinquency declining to near zero by mid-teens to late-teens. The Low group was distinguished by several protective factors, including higher rates of maternal authoritative parenting style, possible lower acculturation (higher rates of non-English spoken at home), higher rates of religious activity, later substance use initiation, lower rates of early delinquent activity, less early experience with neighbourhood or personal violence, and higher rates of perceiving penalty for wrongdoing. Conversely, the High group was characterised by several vulnerability factors – essentially the converse of the protective factors above.
Bibliography Citation
Murphy, Debra A., Mary-Lynn Brecht, David Y.C. Huang and Diane M. Herbeck. "Trajectories of Delinquency from Age 14 to 23 in the National Longitudinal Survey of Youth Sample." International Journal of Adolescence and Youth 17,1 (March 2012): 47-62.