Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
PTSD Symptom Severity |
This outcome measure will assess the change in severity of PTSD symptoms, utilizing the PTSD Checklist for DSM-5 (PCL-5). This self-report measure encompasses 20 items distributed across four domains: re-experiencing (comprising five items), avoidance (encompassing two items), negative alterations in cognition and mood (consisting of seven items), and hyperarousal (incorporating six items). The scoring spectrum extends from 0 to 80, with ascending scores indicative of augmented severity in PTSD symptoms. The threshold of concern has been established at 31 points. In the context of the Turkish adaptation study, the Cronbach's alpha reliability coefficient was ascertained to be .94. The instrument mandates participants to specify a particular traumatic event at the outset, thereby rendering the PCL-5 applicable for evaluating PTSD across diverse traumatic experiences. |
Change from baseline assessment, at 1 week post-intervention assessment (6-7 weeks after baseline), change from post-assessment at 1 month post-intervention assessment (2.5-3 months after baseline), and change from at 3 month post intervention assessment |
|
Secondary |
Depression Anxiety and Stress Symptom Severity |
This measure will evaluate the change in severity of depression, anxiety, and stress symptoms, as measured by the Depression, Anxiety, and Stress Scale (DASS-21). which includes 21 items divided equally among three subscales: depression (seven items), anxiety (seven items), and stress (seven items). The scoring range is from 0 to 42 for each subscale, with higher scores denoting more significant levels of depression, anxiety, and stress. The Turkish version of the scale has demonstrated robust psychometric properties, with Cronbach's alpha internal consistency coefficients reported as .92 for the depression subscale, .86 for the anxiety subscale, and .88 for the stress subscale. This measurement tool is crucial for identifying the severity and range of these symptoms in individuals, contributing to a comprehensive understanding of their psychological well-being. |
Change from baseline assessment, at 1 week post-intervention assessment (6-7 weeks after baseline), change from post-assessment at 1 month post-intervention assessment (2.5-3 months after baseline), and change from at 3 month post intervention assessment |
|
Secondary |
Quality of Life Improvement |
The change in quality of life will be assessed using the [Quality of Life Scale], a validated scale for measuring various domains of life quality in individuals with PTSD. It includes 16 items, measures various domains of life quality including physical and psychological well-being, independence, social relationships, environmental factors, and spirituality among individuals with PTSD. The scoring range extends from 16 to 112, where higher scores denote an enhanced perception of life quality across these domains. The Turkish adaptation of the QOLS has demonstrated robust reliability and validity, with a Cronbach's alpha coefficient of .92, indicating a high level of internal consistency. |
Change from baseline assessment, at 1 week post-intervention assessment (6-7 weeks after baseline), change from post-assessment at 1 month post-intervention assessment (2.5-3 months after baseline), and change from at 3 month post intervention assessment |
|
Secondary |
Feasibility: Attrition Rate |
The attrition rate will reflect the percentage of participants who drop out of the study at various points. This measure will help to assess the engagement and commitment levels of participants to the study protocol. |
Attrition rate will be measured from baseline, at 5 weeks post-intervention, 1 month post-intervention, and 3 months post-intervention. |
|
Secondary |
Feasibility: Recruitment Rate |
Recruitment rate will be calculated based on the number of participants successfully enrolled in the study over the total recruitment period. This metric will evaluate the effectiveness of the recruitment strategies used. |
Recruitment period will be calculated from the beginning of the enrollment process up to the start date of the intervention |
|
Secondary |
Feasibility: Retention Rate |
Retention rate will be monitored to determine the proportion of participants who complete the study without dropping out. This outcome will provide insight into the sustainability and practicality of the study design. |
Retention rate will be assessed from baseline, at 5 weeks, 1 month post-intervention, and 3 months post-intervention. |
|
Secondary |
Feasibility: Adherence Rate to the Mobile Application |
Adherence rate will be measured by the frequency and consistency of participants' interactions with the "TraumaRelief" mobile application. Usage data will be collected to assess how well participants stick to the prescribed intervention. |
Throughout the 5-week intervention period |
|
Secondary |
Feasibility: Consent Rate |
Consent rate will be determined by the ratio of individuals who agree to participate after being approached for the study to the total number of individuals approached, providing insight into the willingness of potential participants to engage in the study. |
Consent rate will be recorded from the onset of the recruitment period until the start date of the intervention. |
|
Secondary |
Feasibility: Fidelity of Intervention Delivery |
To assess the fidelity of the delivered intervention, 40% of the therapy sessions conducted via video calls will be randomly selected and evaluated by clinical psychologists who have completed their doctoral studies in the field. These sessions will be scored using a fidelity checklist to ensure that the intervention is being administered as per the established protocol. This process will help maintain the quality and consistency of the intervention across all participants. |
Throughout the 5-week intervention period |
|
Secondary |
Acceptability: System Usability Scale (SUS) Score for Acceptability |
The acceptability of the "TraumaRelief" mobile application among participants will be measured using the System Usability Scale (SUS) score. This 10-item questionnaire is a well-established method for assessing system usability, employing a scoring range from 0 to 100. Higher SUS scores are indicative of enhanced usability, suggesting a more user-friendly interface and satisfactory user interaction, thus reflecting the application's overall acceptability. The SUS-TR, tailored for the Turkish context , demonstrated high reliability among a sample of 324 university students. The scoring methodology allows for scores to be interpreted along a continuum, where higher values denote greater system usability and user satisfaction, affirming the scale's validity and reliability for Turkish users. |
End of the 5-week intervention period |
|
Secondary |
Acceptability: Preferred and Least Preferred Module Components |
Participants will report the components they found most and least beneficial within each module. This feedback will be used to gauge the acceptability and to refine module content to enhance user experience and engagement |
End of each module during the 5-week intervention period |
|
Secondary |
Acceptability: Application Utilization Frequency |
Usage frequency will be assessed by the average daily number of times participants engage with the "TraumaRelief" application. This metric reflects the integration of the app into daily routines, indicating its acceptability and practicality. |
Daily throughout the 5-week intervention period |
|
Secondary |
Acceptability: Likelihood to Recommend the Application |
The likelihood of participants recommending the "TraumaRelief" application to someone they care about will be measured. A high likelihood of recommendation will indicate the intervention's acceptability and potential endorsement by users. |
At the end of the 5-week intervention period |
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