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Author: Murphy, Debra A.

Resulting in 6 citations.

1.	Huang, David Y.C. Lanza, H. Isabella Murphy, Debra A. Hser, Yih-Ing
1.	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.

2.	Huang, David Y.C. Murphy, Debra A. Hser, Yih-Ing
2.	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.

3.	Huang, David Y.C. Murphy, Debra A. Hser, Yih-Ing
3.	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.

4.	Lanza, H. Isabella Huang, David Y.C. Murphy, Debra A. Hser, Yih-Ing
4.	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.

5.	Murphy, Debra A. Brecht, Mary-Lynn Herbeck, Diane M. Huang, David Y.C.
5.	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.

6.	Murphy, Debra A. Brecht, Mary-Lynn Huang, David Y.C. Herbeck, Diane M.
6.	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.

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