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- Genre: Masters Thesis
- Member of: Theses and Dissertations
Description
Anxiety and depression are among the most prevalent disorders in youth, with prevalence rates ranging from 15% to 25% for anxiety and 5% to 14% for depression. Anxiety and depressive disorders cause significant impairment, fail to spontaneously remit, and have been prospectively linked to problematic substance use and legal problems in adulthood. These disorders often share a high-degree of comorbidity in both clinical and community samples, with anxiety disorders typically preceding the onset of depression. Given the nature and consequences of anxiety and depressive disorders, a plethora of treatment and preventative interventions have been developed and tested with data showing significant pre to post to follow-up reductions in anxiety and depressive symptoms. However, little is known about the mediators by which these interventions achieve their effects. To address this gap in the literature, the present thesis study combined meta-analytic methods and path analysis to evaluate the effects of youth anxiety and depression interventions on outcomes and four theory-driven mediators using data from 55 randomized controlled trials (N = 11,413). The mediators included: (1) information-processing biases, (2) coping strategies, (3) social competence, and (4) physiological hyperarousal. Meta-analytic results showed that treatment and preventative interventions reliably produced moderate effect sizes on outcomes and three of the four mediators (information-processing biases, coping strategies, social competence). Most importantly, findings from the path analysis showed that changes in information-processing biases and coping strategies consistently mediated changes in outcomes for anxiety and depression at both levels of intervention, whereas gains in social competence and reductions in physiological hyperarousal did not emerge as significant mediators. Knowledge of the mediators underlying intervention effects is important because they can refine testable models of treatment and prevention efforts and identify which anxiety and depression components need to be packaged or strengthened to maximize intervention effects. Allocating additional resources to significant mediators has the potential to reduce costs associated with adopting and implementing evidence-based interventions and improve dissemination and sustainability in real-world settings, thus setting the stage to be more readily integrated into clinical and non-clinical settings on a large scale.
ContributorsStoll, Ryan (Author) / Pina, Armando A (Thesis advisor) / MacKinnon, David (Committee member) / Knight, George (Committee member) / Arizona State University (Publisher)
Created2015
Description
The present study contributed an investigation of prosocial peers, a prospective promotive factor, and its association with depressive symptoms, an internalizing outcome. The study utilized six waves of panel data from 2,002 youth in the control condition of the Community Youth Development Study (mean age 13.12 at Grade 7; 52% male; 66.1% White; 26.6% Hispanic). A series of time-varying effect models (TVEM) illustrated the associations between prosocial peers and depressive symptoms over developmental time from Grades 7 through 12. It was hypothesized that prosocial peers and depressive symptoms would have a negative association for both males and females, and that the association would be moderated by gender at the time of transition to high school. It was expected that females would display a significantly stronger negative association than males between prosocial peers and depressive symptoms at this juncture, particularly due to gender-based differences in socialization that are compounded by transition. To strengthen conclusions about prosocial peers being a promotive factor, secondary analyses included covariates measuring previous levels of depressive symptoms; these models accounted either for baseline depressive symptoms or year-prior symptoms. Results showed, overall, prosocial peers had a significant negative association with depressive symptoms over time, for both males and females. When controlling for baseline depressive symptoms, this was still the case. When controlling for year-prior depressive symptoms, prosocial peers was no longer significantly associated with depressive symptoms for males across Grades 10 through 12. Gender moderated the association between prosocial peers and depressive symptoms at the time of transition to high school as well as other grades. When controlling for baseline depressive symptoms, it was again found that gender moderated the association between prosocial peers and depressive symptoms at the time of transition to high school (Grades 8 and 9) but also at Grade 12. When controlling for year-prior depressive symptoms, gender did not moderate the association at the time of transition to high school, but it did at Grades 10, 11, and 12. Overall, results support the possibility of prosocial peers as a prospective promotive factor for youth mental health.
ContributorsMendes, Skyler H. (Author) / Oesterle, Sabrina (Thesis advisor) / Doane, Leah (Thesis advisor) / Perez La Mar, Marisol (Committee member) / Arizona State University (Publisher)
Created2021
Description
Implementation challenges associated with low community effectiveness rates include low levels of client responsiveness to the intervention, less than ideal intervention fidelity, and low levels of provider quality of intervention delivery. The literature is mixed on how group leader fidelity/quality of delivery are associated with client responsiveness, and research on adolescents and ethnoracially diverse clients is particularly lacking. The current study examined group leader fidelity and quality of delivery as predictors of adolescent in-session group responsiveness to the first session of the Bridges intervention which is a universal, family-based, substance use prevention program delivered in Title I middle schools. Participants consisted of 325 adolescents across 30 intervention groups. Three separate observational coding teams coded group leader fidelity, group leader quality of delivery, and adolescent in-session group responsiveness to the program. Overall percentage of fidelity met was calculated. Next, two confirmatory factor analysis models were conducted on the responsiveness and quality of delivery data of session 1, and factor scores were extracted. Hierarchical linear regression was then conducted to predict adolescent responsiveness with group leader fidelity in step 1 and group leader quality of delivery in step 2. There were no significant associations between predictor variables and adolescent in-session group responsiveness. Findings suggest that group leader implementation constructs do not appear to account for a significant amount of the variance in adolescent group responsiveness during the first session. Future research should examine other variables that are relevant in influencing adolescent program engagement with larger sample sizes.
ContributorsKuckertz, Mary J (Author) / Gonzales, Nancy (Thesis advisor) / Mauricio, Anne (Committee member) / Anderson, Samantha (Committee member) / Arizona State University (Publisher)
Created2022
Description
In a world where everything is drifting away from the intellectual into materialistic, and where everyone is rushing on the daily basis to provide their basic needs, everything is getting more expensive except the human life’s worth. Construction sites can be some of the clearer examples that show how the technical work, the communication skills, team work and management relate to one another. However, lately, the safety of the labor is neither being prioritized nor considered an important aspect to even consider at sites. Lebanon is, unfortunately, one of the countries where most construction sites are aimed to increase production and decrease cost as much as possible, on behalf of labor safety measurements. The high occurrence of such cases are the result of the lack of government control and accountability, as well as other reasonings.
Similar to the majority of countries, falls are the number one cause of fatalities and serious injuries on construction sites, especially building sites, where working on higher elevations is a must.
This thesis focuses on the topic of “Techniques and technologies for reducing fall hazards in use on Lebanese building construction projects”. The main goal behind it is to shed light on whether there are any traditional, technical or modern mechanisms used for safety on the Lebanese construction sites, however statistically few they might be. On the other hand, Casting the deficiencies, weaknesses and flaws are also discussed by indicating some solutions and pointers on possible methods to improve. Hence, this thesis would demonstrate the high importance of this topic and consequently help construction managers and workers realize that safety should become a priority on all sites in the country.
Researches done and interviews conducted show that fall hazards prevention/protection techniques are only implemented by large scale companies, and totally ignored by other companies which constitute the highest percentage of the active companies in the market now. Several causes are behind this and the result is one: More lives are put in danger due to lack of education, absence of audits and sanctions, and insufficient budgets
ContributorsMdawar, Hikmat (Author) / Gibson, George Edward (Thesis advisor) / El Asmar, Mounir (Committee member) / Sullivan, Kenneth (Committee member) / Arizona State University (Publisher)
Created2022
Description
This study examined whether the New Beginnings Program (NBP), a preventive parenting intervention, led to changes in coping strategies and coping efficacy in emerging adults whose families had participated in the program 15 years earlier. Gender and baseline risk were examined as moderators of these relations. Participants (M = 25.6 years; 50% female) were from 240 families that had participated in an experimental trial (NBP [mother-only, mother-child] vs. literature control). Data from the pretest and 15-year follow-up were used. Multiple regression analyses revealed that pretest risk interacted with program participation in the mother-only condition of the NBP such that offspring entering the program with higher pretest risk reported significantly less avoidant coping 15 years later. There was a marginal effect of participation in the NBP on problem-focused coping; emerging adults who had participated in the NBP had marginally higher levels of problem-focused coping. There were no significant main effects nor interactive program by risk or program by gender effects on support coping or coping efficacy. Results are discussed in terms of their implications for implementation of preventive interventions and research on pathways of coping.
ContributorsRhodes, Charla Aubrey (Author) / Wolchik, Sharlene A (Thesis advisor) / Tein, Jenn-Yun (Committee member) / Leucken, Linda (Committee member) / Arizona State University (Publisher)
Created2019