Results: 248 publications.

Online social support as a buffer against online and offline peer and sexual victimization among U.S. LGBT and non-LGBT youth

Ybarra ML, Mitchell KJ, Palmer NA, Reisner SL. Online social support as a buffer against online and offline peer and sexual victimization among U.S. LGBT and non-LGBT youth. Child Abuse Negl. 2015;39:123-136. doi: 10.1016/j.chiabu.2014.08.006 Abstract: In today’s technology-infused world, we need to better understand relationships youth form with friends online, how they compare to relationships formed in-person, Read More »


Process evaluation of a mHealth program: Lessons learned from Stop My Smoking USA, a text messaging-based smoking cessation program for young adults

Ybarra ML, Holtrop JS, Prescott TL, & Strong D. Process evaluation of a mHealth program: Lessons learned from Stop My Smoking USA, a text messaging-based smoking cessation program for young adults. Patient Educ Couns. 2014;97(2):239-243. doi: 10.1016/j.pec.2014.07.009 Abstract: OBJECTIVE: Report lessons learned in an RCT of Stop My Smoking (SMS) USA, a mHealth smoking cessation program for Read More »


Opportunities for technology-based HIV prevention programming among high school students in Cape Town, South Africa

  • Cape Town Adolescent Health Survey
  • HIV / AIDS

Ybarra ML, Mwaba B, Prescott TL, Roman NV, Rooi B, & Bull S. Opportunities for technology-based HIV prevention programming among high school students in Cape Town, South Africa. AIDS Care. 2014;26(12):1562-1567. doi: 10.1080/09540121.2014.936814 Abstract: One in three new cases of HIV in South Africa is among adolescents. Given that adolescents are particularly affected, scalable, and cost-effective Read More »


Sexual media exposure, sexual behavior, and sexual violence victimization in adolescence

  • Growing Up With Media

Ybarra ML, Straburger VC, Mitchell KJ. Sexual media exposure, sexual behavior, and sexual violence victimization in adolescence. Clin Pediatr. 2014;53(13):1239-1247. doi: 10.1177/0009922814538700 Abstract: BACKGROUND: Emerging research suggests sexual media affects sexual behavior, but most studies are based on regional samples and few include measures of newer mediums. Furthermore, little is known about how sexual media relates Read More »


A mixed-methods study of condom use and decision making among adolescent gay and bisexual males

  • Guy2Guy

Mustanski B, DuBois LZ, Prescott TL, Ybarra ML. A mixed-methods study of condom use and decision making among adolescent gay and bisexual males. AIDS Behav. 2014;18(10):1955-1969. doi: 10.1007/s10461-014-0810-3 Abstract: Young men who have sex with men have the highest rates of new HIV infections in the U.S., but they have been understudied relative to other populations. Read More »


Steps in tailoring a text messaging-based smoking cessation program for young adults

Ybarra ML, Prescott TL, Holtrop JS. Steps in tailoring a text messaging-based smoking cessation program for young adults. J Health Commun. 2014;19(12):1393-1407. doi: 10.1080/10810730.2014.901441 Abstract: Steps to develop or refine text messaging-based interventions are largely missing from the literature. Here, the authors describe steps in refining Stop My Smoking USA, a text messaging-based smoking cessation program Read More »


Gender minority social stress in adolescence: Disparities in adolescent bullying and substance use by gender identity

  • Teen Health and Technology

Reisner SL, Greytak EA, Parsons JT, Ybarra ML. Gender minority social stress in adolescence: Disparities in adolescent bullying and substance use by gender identity. J Sex Res. 2015;52(3):243-56. doi: 10.1080/00224499.2014.886321. Abstract: Bullying and substance use represent serious public health issues facing adolescents in the United States. Few large-sample national studies have examined differences in these indicators Read More »


Differentiating youth who are bullied from other victims of peer-aggression: The importance of differential power and repetition

  • Teen Health and Technology

Ybarra ML, Espelage DL, Mitchell KJ. Differentiating youth who are bullied from other victims of peer-aggression: The importance of differential power and repetition. J Adolesc Health. 2014;55(2):293-300. doi: 10.1016/j.jadohealth.2014.02.009 Abstract: PURPOSE: To examine whether (1) among youth who report being bullied, differential power and repetition are useful in identifying youth who are more or less affected Read More »


Perceptions of health care services and HIV-related health-seeking behavior among Uganda adolescents

Hampanda K, Ybarra M, Bull S. Perceptions of health care services and HIV-related health-seeking behavior among Uganda adolescents. AIDS Care. 2014;26(10):1209-1217. doi: 10.1080/09540121.2014.894612 Abstract: Youth represent almost half of all new HIV infections globally. Although condom use is an effective method of HIV prevention among sexually active youth in sub-Saharan Africa (SSA), they face substantial barriers in Read More »


Psychometric evaluation of a self-report scale to measure adolescent depression: The CESDR-10 in two national adolescent samples in the United States

  • CESD-R

Haroz EE, Ybarra ML, Eaton WW. Psychometric evaluation of a self-report scale to measure adolescent depression: The CESDR-10 in two national adolescent samples in the United States. J Affect Disord. 2014;158:154-160. doi: 10.1016/j.jad.2014.02.009 Abstract: BACKGROUND: There is a need for brief instruments to screen for depression in adolescents that are valid, reliable and freely available. The Read More »


Cross‐sectional associations between violent video and computer game playing and weapon carrying in a national cohort of children

  • Growing Up With Media

Ybarra ML, Huesmann LR, Korchmaros JD, Reisner SL. Cross‐sectional associations between violent video and computer game playing and weapon carrying in a national cohort of children. Aggress Behav. 2014;40(4):345-358. doi: 10.1002/ab.21526 Abstract: Data were collected from 9 to 18 year olds surveyed nationally in a three‐wave longitudinal survey. The population‐average (generalized estimating equation, GEE) odds of Read More »


Outness and feelings of isolation among rural and urban gay, bisexual, and queer adolescent males: A mixed-methods study

Rivera Z, Macapagal K, DuBois Z, Ybarra M, Prescott T, Mustanski B. Outness and feelings of isolation among rural and urban gay, bisexual, and queer adolescent males: A mixed-methods study. Poster presentation at the 2nd Annual LGBTQ Health & Wellness Conference; November 20, 2013; Chicago, Illinois. Data from Guy to Guy (G2G) study collected in 2012 Read More »