Publications by authors named "Roxanne Muiruri"

3 Publications

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An evaluation of StaySafe, a tablet app to improve health risk decision-making among people under community supervision.

J Subst Abuse Treat 2021 May 14;130:108480. Epub 2021 May 14.

Texas Christian University, Institute of Behavioral Research, TCU Box 298740, Fort Worth, TX 76129, USA. Electronic address:

Background: A self-administered tablet app, StaySafe, helps people under community supervision to make better decisions regarding health risk behaviors, especially those linked to HIV, viral hepatitis, and other sexually transmitted infections. The multi-session StaySafe design uses an interactive, analytical schema called WORKIT that guides users through a series of steps, questions, and exercises aimed at promoting critical thinking about health risks associated with substance use and unprotected sex. Repetition of the WORKIT schema is designed to enhance procedural memory that can be rapidly accessed when individuals are faced with making decisions about risky behaviors.

Methods: A total of 511 participants under community supervision in community and residential treatment settings from three large Texas counties completed consent forms and baseline surveys, followed by randomization to one of two conditions: 12 weekly StaySafe sessions or standard practice (SP). The study also asked participants to complete a follow-up survey three months after baseline. Outcome measures included knowledge, confidence, and motivation (KCM) scales around HIV knowledge, avoiding risky sex, HIV services, and reducing health risks; decision-making; and reports of talking about issues such as making better decisions, avoiding HIV risks, and HIV prevention or treatment with others (probation officers, counselors, trusted friend or advisor, or family members).

Results: Participants in both community and residential settings voluntarily completed multiple StaySafe sessions, with those in the residential settings completing more sessions. When compared with SP participants, StaySafe participants showed greater improvement in the KCM measures-HIV knowledge, avoiding sex risks, HIV services, and risk reduction skills. In addition, greater improvements in the KCM measures as well as an increased likelihood to discuss issues with others were associated with completing more StaySafe sessions.

Conclusion: These results suggest that the StaySafe app is a feasible and potentially effective tool for improving health risk reduction decision-making for individuals under community supervision.
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May 2021

Improving Substance Use Services for Juvenile Justice-Involved Youth: Complexity of Process Improvement Plans in a Large Scale Multi-site Study.

Adm Policy Ment Health 2020 07;47(4):501-514

Institute of Behavioral Research, Texas Christian University, TCU Box 298740, Fort Worth, TX, 76129, USA.

Despite the high prevalence of substance use disorders among juvenile offenders, most do not receive services. System-level process improvement plans to address unmet service needs can be optimized by combining data-driven decisions and facilitated meetings with behavioral health stakeholders. This paper operationalizes and analyzes the level of specified complexity among process improvement plans evident within 36 juvenile probation and drug courts across 7 states. To inform more effective implementation strategies, this analysis identifies and prioritizes promising courses of agency enhancement toward addressing unmet substance use needs.
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July 2020

: A self-administered android tablet application for helping individuals on probation make better decisions pertaining to health risk behaviors.

Contemp Clin Trials Commun 2018 Jun 31;10:86-93. Epub 2018 Mar 31.

Institute of Behavioral Research, Texas Christian University, TCU Box 298740, Fort Worth, TX 76129, USA.

This paper describes the development and protocol for feasibility and efficacy testing of a risk reduction intervention designed to improve behavioral health outcomes among drug offenders on probation under community supervision or in residential substance abuse treatment centers. is a self-administered tablet-based intervention for teaching better decision-making skills regarding health risk behaviors, especially those involving HIV risks. We are using pre/post, experimental/control group randomized clinical trial (RCT) in both community and residential probation settings with goals to 1) assess the feasibility and acceptance of by examining participation rates and satisfaction measures, and 2) examine the impact of on decision-making skills, confidence and motivation to avoid sex and drug risks, willingness to discuss health risks and concerns with helpful others, and engagement in health risk behaviors. consists of 12 brief sessions and utilizes an evidence-based decision-making schema, called WORKIT, which guides participants through steps for identifying the problem and options, evaluating the options and making a decision about which option to carry out. Multiple sessions of provide a practice effect so that the WORKIT steps become easily accessible to participants when making decisions. Three of the sessions provide participants a choice of activities designed to provide additional information about HIV and reinforce lessons learned during the WORKIT sessions. Preliminary data demonstrate feasibility and high levels of satisfaction with .
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June 2018