This study proposes to pilot an online intervention to support father-teen health-promoting talk about sex and relationships using Social Cognitive Theory, and to evaluate this intervention's acceptability, feasibility, and preliminary efficacy, using an Intervention Mapping approach. This study involves conducting a pilot intervention with 50 pairs of fathers and their high-school aged teens. Feasibility and acceptability will be assessed through program data such as participants' pilot enrollment, lesson feedback, and program retention, survey data and member checks through debrief interviews (5 father, 5 teens). Preliminary assessment of directionality of change in participants' health-related knowledge, self-efficacy, and outcome expectations over the course of the pilot intervention (pre- and post-intervention surveys) to determine whether a full-scale R01 is warranted.

This study proposes to pilot an online intervention to support father-teen health-promoting talk about sex and relationships using Social Cognitive Theory, and to evaluate this intervention's acceptability, feasibility, and preliminary efficacy, using an Intervention Mapping approach. This study involves conducting a pilot intervention with 50 pairs of fathers and their high-school aged teens. Feasibility and acceptability will be assessed through program data such as participants' pilot enrollment, lesson feedback, and program retention, survey data from Acceptability of Intervention Measure and Feasibility of Intervention Measure, and member checks through debrief interviews (5 father, 5 teens). Preliminary assessment of directionality of change in participants' health-related knowledge, self-efficacy, and outcome expectations over the course of the pilot intervention (pre- and post-intervention surveys) to determine whether a full-scale R01 is warranted.

The investigators will recruit a diverse sample of father-adolescent pairs (N=50 pairs) through partnership with three community partner organizations. Fathers will be asked questions online to determine project eligibility and demographics (screener) and given an online consent form. If a father agrees to teens' participation, the teen will be sent an assent form for their own participation and a brief screener survey. If teens are 18 or older, the investigators will request their contact information from participating fathers and ask teens to provide their own consent. Only father/teen pairs who complete the screeners and consent/assent forms, meet eligibility criteria, and both agree to participate can join the study.

All pilot participants will be given a pre-and post-intervention survey to assess any change in proximal outcomes. Participants will be asked to participate in 3 online modules over 6 weeks which include 3 online lessons (father and teens complete separately) and father/teen activities (fathers and teens complete together) and 3 father support group (father only). Each module will last one week and will include an online lesson and father-teen activity (fathers and teens) and online father support group session (fathers only). Lessons and support group sessions will include feedback questions (acceptability). Tracking of enrollment, retention, and duration of lesson participation will provide feasibility assessment. To obtain in-depth feedback on participants' responses to the intervention (acceptability), and to conduct member checks on pilot lesson feedback, the investigators will conduct debrief interviews with a purposive sample of pilot participants (5 fathers, 5 teens) with variation in: teen gender and level of intervention engagement.

The 3 module, 3-week intervention will be delivered on Qualtrics and Zoom, accessible via computer or tablet. Online lessons will be self-paced within each week and will each include a father-teen activity, with text and e-mail reminders at the start and end of the week. Father support groups will occur online at a scheduled time planned based on fathers' schedules. Given the limited scope of the project, prototype technology will be relatively simple, with more advanced technology planned for a future R01.

Inclusion criteria for fathers:

• adult (18 or older)
• father (biological, step, adopted, or foster) of a participating teen and
• report regular contact with the teen
• healthy enough to participate in online surveys, an online intervention, interactive activities (either online, over the phone or in-person) with the adolescent, and an online support group
• speak English
• have a reading level of 6th grade or above.

Exclusion criteria for fathers:

• not a father (biological, step, adopted, or foster) of a participating high-school aged teen
• under the age of 18
• not in regular contact with their teen
• cannot participate in intervention in English Inclusion criteria for adolescents
• high-school aged child (biological, step, adopted, or foster) of a participating father
• report regular contact with their father
• healthy enough to participate in online surveys and interactive activities (either online, over the phone or in-person) with the father
• have a reading level of 6th grade or above Exclusion criteria for adolescents
• not in high school
• not in regular contact with the father
• not child (biological, step, adopted, or foster) of participating father
• cannot participate in intervention in English

Documentation to be made publicly available to the research community will include pilot surveys and interview protocols, along with a detailed User Guide for interviews. A survey codebook will include a description of all items and survey measures as well as variable names, variable labels, and standard codes for missing values. Interview data will include a description of recoded data categories. We expect study data and associated documentation will be made available to the research community free of charge through the Inter-university Consortium for Political and Social Research (ICPSR).

Final submission and release of the study data will occur approximately 1 year following the end of fieldwork. Study data deposited in the Inter-university Consortium for Political and Social Research will be available to the research community in perpetuity. Datasets underlying methodological publications will be shared at or prior to initial publication date as appropriate.

Deidentified pilot survey data will be made available as public use data to the research community via the Inter-university Consortium for Political and Social Research (ICPSR). Users of this data must register with ICPSR and agree to the Terms of Use. Data users also agree not to share or redistribute any data downloads.

Recoded interview data that is determined to be potentially identifying through indirect or deductive disclosure are provided under restricted data contract to users who demonstrate a valid research need and meet conditions of use.