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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

A computerized intervention for depression : a randomized clinical trial

Sandoval, Luis Roberto 09 February 2015 (has links)
One in ten adults in the U.S. report depression, and thirty-eight percent of those receiving treatment are receiving minimally adequate treatment. Studies show that evidence-based Internet interventions are highly effective in treating depression at a low cost. The aim of this study was to reduce symptoms of depression in subjects through the use of a new, electronic Problem Solving Treatment (ePST). Adult participants with moderate to severe depression symptoms were randomly assigned to either treatment or a wait-list condition. The Beck Depression Inventory-II was used as the primary outcome measure. A Repeated Measure Design with one factor in the between (treatment vs control) and one factor in the within (pre, mid-point, and post-treatment) was used in the analysis. Study results showed that participants in the ePST group improved their depression symptoms (from Moderate to Mild levels of depression) after receiving 3 session of ePST, as well as after receiving six session of ePST (from moderate to minimal levels of depression). On the other hand, participants assigned to the control group remained with Moderate levels of depression. / text
2

Saving Our Sisters: Effects of a Computer-Based Version of SISTA on the HIV-Related Behaviors of African American Women

Frieson, Krystal 01 January 2015 (has links)
Human Immunodeficiency Virus (HIV) and Acquired Immunodeficiency Syndrome (AIDS) are infectious diseases wreaking irreparable havoc on the lives of millions all around the world. Of those infected and affected by HIV in the United States, African Americans disproportionately bear the burden of this disease, which has resulted in a major crisis within the African American community. In 2010, African Americans accounted for approximately 44% of all new HIV infections among adolescents, 13 years of age and older, and adults [Centers for Disease Control and Prevention [CDC], 2012). These statistics become even more dismal when both race and gender enter the equation. In regards to global HIV/AIDS, the leading cause of death among women of reproductive age is AIDS-related illnesses (Joint United Nations Programme on HIV/AIDS [UNAIDS], 2012). According to the CDC (2012), 64% of estimated new HIV infections in women in the United States in 2010 were in African Americans. This study examined the effectiveness of increasing protective HIV behaviors through the use of the SAHARA program, a computer-based, gender-specific and culturally appropriate HIV behavioral intervention program. More specifically, the SAHARA intervention was created to encourage consistent condom use during penetrative vaginal sex through mediating components of the intervention such as HIV knowledge, condom use self-efficacy, barriers to condom use, and frequency of partner communication for a population of African American women living in areas of Kentucky and Georgia. Convenience sampling was used to recruit participants from college campuses and community areas. Fifty-two African American female study participants completed surveys through the use of a quasi-experimental non-randomized pretest-posttest design. Significant group differences were observed for scores on STD/HIV Risk Behavior Knowledge and Condom Barrier Scale. Results suggest that the SAHARA prevention intervention produced clinically significant changes in STD/HIV knowledge and perception of condom barriers in the SAHARA group compared to the control group.
3

Desenvolvimento e usabilidade de uma intervenção computadorizada de psicoeducação sobre transtorno obsessivo-compulsivo

Siegmund, Gerson January 2014 (has links)
Este trabalho apresenta o processo iterativo de criação, desenvolvimento e avaliação de um programa de computador para psicoeducação sobre Transtorno Obsessivo-Compulsivo (TOC). Na primeira fase foi criado um protótipo interativo e autoadministrado. A segunda fase consistiu em avaliações com experts, que levaram a importantes alterações no protótipo. O resultado dessas etapas gerou um programa com 3 módulos de psicoeducação. A terceira fase foi um ensaio com usuários, do qual participaram 21 sujeitos entre 19 e 55 anos. Os instrumentos utilizados foram o Y-BOCS, escalas subjetivas para avaliação da intensidade dos sintomas de TOC, humor e ansiedade, questões de usabilidade e log do programa. Os participantes levaram em média 8 dias para completar o programa, e o tempo médio de uso totalizou 2 horas e 14 minutos. Apenas uma questão dos quizzes teve frequência de acertos abaixo de 70%. O nível médio de satisfação foi de 8,33 no primeiro módulo, 8,71 no segundo e 9,00 no terceiro. Foi encontrada diferença nos escores obsessivos do Y-BOCS entre os dois momentos de avaliação e diferença estatisticamente significativa na escala subjetiva de sintomas do TOC entre os módulos 1 e 2, e 1 e 3. O programa obteve um bom nível de satisfação dos usuários e apresenta potencial efeito de redução de sintomas percebidos. O modelo de desenvolvimento do programa é aplicável a outros contextos em Psicologia e o protótipo desenvolvido pode ser utilizado como matriz para intervenções semelhantes. / This study presents the iterative process of creating, developing and evaluating a psychoeducational software addressed at Obsessive-Compulsive Disorder (OCD). In stage 1, an interative and self-administered prototype was created. Second stage consisted of evaluations with experts, which led to important changes in the prototype. The results of these steps generated a three-module psychoeducational software. Third stage was a usability trial with users, 21 participants, ranging from 19 to 55 years old. Measures used were Y-BOCS, subjective scales to assess OCD symptoms intensity, humor and anxiety, usability questions, and the system log. Participants took an average of 8 days to complete the intervention, and the average time of software usage was 2 hours and 14 minutes. Only one quiz question showed less than 70% correct answers. Mean level of satisfaction was 8,33 for the first module, 8,71 for the second and 9,00 for the third. A difference was found on obsessive scores of Y-BOCS at the two evaluation times, and a statistically significant difference was found on the scale of OCD symptoms intensity, between modules 1 e 2, and 1 and 3. The software reached a good level of satisfaction among users and shows a potential effect in reduction of perceived symptoms. The model of development may be used with other psychological applications, and the prototype may be used as a strucutral matrix for similar interventions.
4

Desenvolvimento e usabilidade de uma intervenção computadorizada de psicoeducação sobre transtorno obsessivo-compulsivo

Siegmund, Gerson January 2014 (has links)
Este trabalho apresenta o processo iterativo de criação, desenvolvimento e avaliação de um programa de computador para psicoeducação sobre Transtorno Obsessivo-Compulsivo (TOC). Na primeira fase foi criado um protótipo interativo e autoadministrado. A segunda fase consistiu em avaliações com experts, que levaram a importantes alterações no protótipo. O resultado dessas etapas gerou um programa com 3 módulos de psicoeducação. A terceira fase foi um ensaio com usuários, do qual participaram 21 sujeitos entre 19 e 55 anos. Os instrumentos utilizados foram o Y-BOCS, escalas subjetivas para avaliação da intensidade dos sintomas de TOC, humor e ansiedade, questões de usabilidade e log do programa. Os participantes levaram em média 8 dias para completar o programa, e o tempo médio de uso totalizou 2 horas e 14 minutos. Apenas uma questão dos quizzes teve frequência de acertos abaixo de 70%. O nível médio de satisfação foi de 8,33 no primeiro módulo, 8,71 no segundo e 9,00 no terceiro. Foi encontrada diferença nos escores obsessivos do Y-BOCS entre os dois momentos de avaliação e diferença estatisticamente significativa na escala subjetiva de sintomas do TOC entre os módulos 1 e 2, e 1 e 3. O programa obteve um bom nível de satisfação dos usuários e apresenta potencial efeito de redução de sintomas percebidos. O modelo de desenvolvimento do programa é aplicável a outros contextos em Psicologia e o protótipo desenvolvido pode ser utilizado como matriz para intervenções semelhantes. / This study presents the iterative process of creating, developing and evaluating a psychoeducational software addressed at Obsessive-Compulsive Disorder (OCD). In stage 1, an interative and self-administered prototype was created. Second stage consisted of evaluations with experts, which led to important changes in the prototype. The results of these steps generated a three-module psychoeducational software. Third stage was a usability trial with users, 21 participants, ranging from 19 to 55 years old. Measures used were Y-BOCS, subjective scales to assess OCD symptoms intensity, humor and anxiety, usability questions, and the system log. Participants took an average of 8 days to complete the intervention, and the average time of software usage was 2 hours and 14 minutes. Only one quiz question showed less than 70% correct answers. Mean level of satisfaction was 8,33 for the first module, 8,71 for the second and 9,00 for the third. A difference was found on obsessive scores of Y-BOCS at the two evaluation times, and a statistically significant difference was found on the scale of OCD symptoms intensity, between modules 1 e 2, and 1 and 3. The software reached a good level of satisfaction among users and shows a potential effect in reduction of perceived symptoms. The model of development may be used with other psychological applications, and the prototype may be used as a strucutral matrix for similar interventions.
5

Desenvolvimento e usabilidade de uma intervenção computadorizada de psicoeducação sobre transtorno obsessivo-compulsivo

Siegmund, Gerson January 2014 (has links)
Este trabalho apresenta o processo iterativo de criação, desenvolvimento e avaliação de um programa de computador para psicoeducação sobre Transtorno Obsessivo-Compulsivo (TOC). Na primeira fase foi criado um protótipo interativo e autoadministrado. A segunda fase consistiu em avaliações com experts, que levaram a importantes alterações no protótipo. O resultado dessas etapas gerou um programa com 3 módulos de psicoeducação. A terceira fase foi um ensaio com usuários, do qual participaram 21 sujeitos entre 19 e 55 anos. Os instrumentos utilizados foram o Y-BOCS, escalas subjetivas para avaliação da intensidade dos sintomas de TOC, humor e ansiedade, questões de usabilidade e log do programa. Os participantes levaram em média 8 dias para completar o programa, e o tempo médio de uso totalizou 2 horas e 14 minutos. Apenas uma questão dos quizzes teve frequência de acertos abaixo de 70%. O nível médio de satisfação foi de 8,33 no primeiro módulo, 8,71 no segundo e 9,00 no terceiro. Foi encontrada diferença nos escores obsessivos do Y-BOCS entre os dois momentos de avaliação e diferença estatisticamente significativa na escala subjetiva de sintomas do TOC entre os módulos 1 e 2, e 1 e 3. O programa obteve um bom nível de satisfação dos usuários e apresenta potencial efeito de redução de sintomas percebidos. O modelo de desenvolvimento do programa é aplicável a outros contextos em Psicologia e o protótipo desenvolvido pode ser utilizado como matriz para intervenções semelhantes. / This study presents the iterative process of creating, developing and evaluating a psychoeducational software addressed at Obsessive-Compulsive Disorder (OCD). In stage 1, an interative and self-administered prototype was created. Second stage consisted of evaluations with experts, which led to important changes in the prototype. The results of these steps generated a three-module psychoeducational software. Third stage was a usability trial with users, 21 participants, ranging from 19 to 55 years old. Measures used were Y-BOCS, subjective scales to assess OCD symptoms intensity, humor and anxiety, usability questions, and the system log. Participants took an average of 8 days to complete the intervention, and the average time of software usage was 2 hours and 14 minutes. Only one quiz question showed less than 70% correct answers. Mean level of satisfaction was 8,33 for the first module, 8,71 for the second and 9,00 for the third. A difference was found on obsessive scores of Y-BOCS at the two evaluation times, and a statistically significant difference was found on the scale of OCD symptoms intensity, between modules 1 e 2, and 1 and 3. The software reached a good level of satisfaction among users and shows a potential effect in reduction of perceived symptoms. The model of development may be used with other psychological applications, and the prototype may be used as a strucutral matrix for similar interventions.

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