I need help identifying the research design and methodology

I need help identifying the research design and methodology of the… I need help identifying the research design and methodology of the following pilot study-interventional/ quasi experimental as it relates to group and pre-post testing, causality¬†Rates of PTSD remain elevated among U.S. Veterans, highlighting a need for innovative management tools. Previous studies have shown mobile apps to have positive effects on PTSD symptoms, but few apps have been examined systematically. This pilot study evaluated the perceived effectiveness and usability of Mindset, a novel mobile app that monitors user stress level via heart rate to encourage e-therapy use. The study sample included 30 community-residing Veterans who completed baseline assessments. They used the Mindset app and associated smartwatch until their approximate 1-month follow-up. Self-reported assessments included pre- and post-deployment experiences; experience with Mindset; and standard screeners for PTSD (PCL-M), anxiety (GAD-7), depression (PHQ-9), and alcohol use problems (AUDIT). Among the 24 participants who completed follow-up interviews, a significant decrease (p < 0.05) was found in PCL-M, PHQ-9, and modified AUDIT scores. Respondents reported moderate to high acceptance and satisfaction with Mindset features, though considerable frustration with the associated smartwatch. These findings highlight mHealth apps such as Mindset as potentially useful tools for PTSD and depression symptom management. These findings are also encouraging in the context of the current COVID-19 pandemic, which may accelerate further innovation and implementation of mHealth technologies to improve mental health self-care.ParticipantsThirty Veterans meeting the following criteria were included in the study: 50years of age or younger with combat experience; resident of the St. Louis, MO region; and a smartphone owner. We further excluded individuals with pacemakers, due to its potential interference with heart rate variability measures, and individuals with severe psychiatric disorders that could compromise the validity of a respondent's answers (e.g. active schizophrenia, schizoaffective disorder, or severe cognitive impairment). This screening was conducted at the initial contact enrollment time as well as prior to starting survey s. Participants were recruited through outreach to Veteran organizations and by word of mouth. Recruitment and interviewing occurred between June 2017 and March 2018. Six participants did not complete the follow-up survey, resulting in a final follow-up sample size of 24. No significant differences were found for age (mean difference=3.54years; t=-1.7 (df=9.9); p=0.13), sex (?2=0.0 (df=1); p=1.00), or race (?2=0.6 (df=2); p=0.75) between those who did and did not complete a follow-up interview using a two-sample t-test for age and Chi-squared test for sex and race. Two-thirds of participants that completed follow-up interviews were male. Participants were predominantly white, and their average age was 36.7 years.ProcedureStudy interviewers contacted Veterans who expressed interest in study participation, further explained the study, and assessed inclusion criteria through participant responses to screening s. If eligible, an in-person baseline interview was scheduled. Informed consent was completed immediately before the baseline interview. After interview completion, participants were introduced to the Mindset app and associated smartwatch and were given instructions on how to use the watch with the app and the app's modules. The research team provided participants with an anonymous username for Mindset. All data recorded by Mindset were transmitted to a secure server only accessible by the authorized personnel of DataDog Health. However, data summarized in the study was obtained separately by a university research team.Participants used the Mindset app and watch for approximately 1month. The app gave users three daily tasks to encourage active engagement (prominent buttons on the app's home screen that directed the user to either a gratitude, meditation, or journal exercise), along with any stress notifi- cations. After the month, participants completed a follow-up interview either in-person or over-the-phone if an in-person interview could not be scheduled. Participants were given a $25 gift card after the completion of each interview and the smartwatch at the end of study participation.Health Science Science Nursing NURS 3150

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