Results: 103 publications.

Low rates of human immunodeficiency virus testing among adolescent gay, bisexual, and queer men

Phillips G 2nd, Ybarra M, Prescott T, Parsons J, Mustanski B. Low rates of Human Immunodeficiency Virus testing among adolescent gay, bisexual, and queer men. J Adolesc Health. 2015;57(4):407-12. doi: 10.1016/j.jadohealth.2015.06.014. Abstract: PURPOSE: Adolescent gay and bisexual men (AGBM) are disproportionately affected by human immunodeficiency virus (HIV), but little is known about testing rates among men aged Read More »


Iteratively developing an mHealth HIV prevention programfor sexual minority adolescent men

Ybarra M, Last Prescott T, Philips G, Bull S, Parsons J, Mustanski B. Iteratively developing an mHealth HIV prevention program for sexual minority adolescent men. AIDS & Behavior. 2016; 20 (6): 1157–1172. dio: 10.1007/s10461-015-1146-3 Abstract: Five activities were implemented between November 2012 and June 2014 to develop an mHealth HIV prevention program for adolescent gay, bisexual, and queer men (AGBM): (1) focus Read More »


Examining the influence of a text message-based sleep and physical activity intervention among young adult smokers in the United States

Filion J, Darlington G, Chaput J, Ybarra M, Haines J. Examining the influence of a text message-based sleep and physical activity intervention among young adult smokers in the United States. BMC Public Health. 2015;15(1): 671. doi: 10.1186/s12889-015-2045-2 Abstract: BACKGROUND: Sleep and physical activity are two health behaviors associated with improved smoking cessation outcomes. Text message-based interventions have previously been Read More »


The authors reply: “Sexting” and its relation to sexual activity and sexual risk behavior in a national survey of adolescents

  • Teen Health and Technology

Ybarra ML, Mitchell KJ. The authors reply: “Sexting” and its relation to sexual activity and sexual risk behavior in a national survey of adolescents. J Adolesc Health. 2015; 57(1):129. doi: 10.1016/j.jadohealth.2015.04.014 Abstract: We appreciate Eugene’s letter in response to our recent article about the psychosocial and behavioral characteristics associated with “sexting” in adolescence. We agree that our study Read More »


A national study of lesbian, gay, bisexual (LGB), and non-LGB youth sexual behavior online and in-person

  • Teen Health and Technology

Ybarra ML, Mitchell KJ. A national study of lesbian, gay, bisexual (LGB), and non-LGB youth sexual behavior online and in-person. Arch Sex Behav. 2015. doi: 10.1007/s10508-015-0491-7. Abstract: Online and in-person sexual behaviors of cisgender lesbian, gay, queer, bisexual, heterosexual, questioning, unsure, and youth of other sexual identities were examined using data from the Teen Health Read More »


A randomized controlled trial to increase HIV preventive information, motivation, and behavioral skills in Ugandan adolescents

  • Cybersenga

Ybarra ML, Korchmaros JD, Prescott TL, Birungi R. A randomized controlled trial to increase HIV preventive information, motivation, and behavioral skills in Ugandan adolescents. Ann Behav Med. 2015;49(3):473-85. doi: 10.1007/s12160-014-9673-0. Abstract: BACKGROUND: One in 25 Ugandan adolescents is HIV positive. PURPOSE: The aim of this study is to examine the impact of an Internet-based HIV prevention program on Information-Motivation-Behavioral skills Read More »


Adolescent online romantic relationship initiation: Differences by sexual and gender identification

  • Teen Health and Technology

Korchmaros JD, Ybarra ML, Mitchell KJ. Adolescent online romantic relationship initiation: Differences by sexual and gender identification. J Adolesc. 2015;40:54-64. doi: 10.1016/j.adolescence.2015.01.004 Abstract: Data from the national Teen Health and Technology Study of adolescents 13–18 years old (N = 5091) were used to examine online formation of romantic relationships. Results show that lesbian, gay, bisexual, transgender, and queer (LGBTQ) and non-LGBTQ Read More »


Can clans protect adolescent players of massively multiplayer online games from violent behaviors?

  • Growing Up With Media

Ybarra ML, boyd d. Can clans protect adolescent players of massively multiplayer online games from violent behavior? Int J Public Health. 2015;60(2):267-76. doi: 10.1007/s00038-014-0637-8. Abstract: OBJECTIVES: To examine whether clan membership mediates observed associations between violent game content and externalizing behaviors among youth who play massively multiplayer online games (MMOGs). METHODS: Responses from 486 11- to 18-year-olds who: Read More »


Serious games for sexual health

Brown, K., Bull, S., Christensen, J.L., Hieftje,K., Jozowski, K.N., Ybarra, M.L. Serious games for sexual health. Games Health J. 2015;4(2):69-77. doi: 10.1089/g4h.2014.0139. Abstract: Program developers and researchers in the sexual health domain have increasingly embraced technological trends as they emerge. With the emergence of serious game applications to impact health behaviors, a natural step for research Read More »


What features make online harassment incidents upsetting to youth?

Mitchell KJ, Ybarra ML, Jones LM, & Espelage D. What features make online harassment incidents upsetting to youth? J Sch Violence. Published online ahead of print January 6, 2015. doi: 10.1080/15388220.2014.990462 Abstract: This article examines characteristics of online harassment episodes associated with increased distress for youth. Data were collected as part of the Third Youth Internet Read More »


Online focus groups as an HIV prevention program for gay, bisexual, and queer adolescent males

Ybarra ML, DuBois LZ, Parsons JT, Prescott TL, Mustanski B. Online focus groups as an HIV prevention program for gay, bisexual, and queer adolescent males. AIDS Educ Prev. 2014;26(6): 554-564. doi: 10.1521/aeap.2014.26.6.554 Abstract: Seventy-five 14–18-year-old gay, bisexual, and queer (GBQ) males provided feedback about how their participation in national, online focus groups (FG) about GBQ sexual health related topics resulted Read More »


Understanding linkages between bullying and suicidal ideation in a national sample of LGB and heterosexual youth in the United States

Ybarra ML, Mitchell KJ, Kosciw JG, Korchmaros JD. Understanding linkages between bullying and suicidal ideation in a national sample of LGB and heterosexual youth in the United States. Prev Sci. 2015;16(3):451-62. doi: 10.1007/s11121-014-0510-2 Abstract: While there is an extant research base regarding suicidal ideation in relation to bullying and peer harassment, how findings may be Read More »