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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

Concurrent Substance Use and Related Problems among African American Adolescents: A Daily Diary Study

Banks, Devin Elizabeth 08 1900 (has links)
Indiana University-Purdue University Indianapolis (IUPUI) / African American adolescents have historically been considered at low risk for substance use relative to the White adolescent majority based on national prevalence estimates. However, during the last decade, African American adolescents’ rates of marijuana use—alone and in combination with other substances—have increased disproportionately relative to those of their White peers. Given the strong relationship between marijuana use and other substance use and the functional consequences associated with concurrent substance use during adolescence, the increase in marijuana use among African American youth may contribute to increased substance-related health disparities across the lifespan. Thus, the current study examined daily associations between marijuana use and other substance use among African American adolescents relative to their White peers. It also examined whether those associations differentially predicted behavioral health consequences among African American adolescents. Participants (N = 35; 42.9% African American) were adolescents age 14-18 who reported past 30-day use of marijuana, alcohol, and/or tobacco products. Respondents completed daily diaries reporting their substance use for 14 consecutive days, followed by self-report measures of internalizing symptoms, externalizing symptoms, and substance use problems. Multilevel regression and structural equation models were used to account for the nesting of days within individuals. Participants completed 458 diaries for a completion rate of 93.5%. African American respondents reported greater daily- and individual-level rates of marijuana use and concurrent substance use than White respondents. However, in multilevel models controlling for demographics, marijuana use was not related to concurrent use of alcohol and/or tobacco use and this relationship did not vary by race. Racial differences in the relationship between concurrent substance use and behavioral health consequences were observed such that the relationship was positive among White youth but not African American youth. Findings suggest that African American youth are at high risk for engagement in problematic patterns of substance use but that daily diary methods may not be most appropriate for illuminating these patterns. Despite these unexpected results, disparities in substance-related consequences among African Americans adults persist. Future research should examine long-term rather than proximal consequences of concurrent substance use among African American adolescents.
2

Daily Processes in Romantic Relationships

Totenhagen, Casey J. January 2011 (has links)
My goal was to examine how experiences and behaviors of individuals and their romantic partners impact relationships on a daily basis. I conducted three separate but empirically and conceptually related studies. For all three papers, the sample was both members of heterosexual romantic relationships (N = 164 couples, 328 individuals) who completed measures each day for seven days. The papers were informed by tenets from interdependence theory and the conservation of resources model. The main purpose of the first paper was to examine a set of relational constructs (i.e., satisfaction, commitment, closeness, conflict, ambivalence, maintenance, and love) to determine which constructs fluctuated daily. All seven relational constructs showed significant within-person variability and were thus appropriate for further daily investigation. With this information, the next step was to understand how to foster positive relationships by examining what daily experiences were associated with those fluctuations. In the second paper I examined whether daily hassles and uplifts were associated with same-day and next-day feelings about the relationship. For same-day effects, I found that hassles were associated with decreased positivity and increased negativity about relationships, whereas uplifts were largely associated with increased positivity. I also found interactions between hassles and uplifts, suggestive of "blunting" effects whereby the positive effects of uplifts were nullified by high levels of hassles. For the next-day effects, I unexpectedly found that uplifts were associated with <italic>decreased</italic> positive relational constructs on the next day, possibly indicating a return to homeostatic levels. In the third paper, I moved to a more explicit examination of dyadic processes by examining both actor and partner effects and focusing on the role of relational sacrifices, or the daily changes individuals make for the sake of their romantic parnters. I expected that sacrifices would be beneficial for positive relationship quality, particularly on days characterized by low (versus high) hassles. I found support for these expectations with regards to actor, but not partner effects. Overall implications are that the everyday things that individuals experience (e.g., hassles and uplifts) and enact (e.g., sacrifices) are important considerations in fostering less negative and more positive romantic relationships.
3

Investigating Daily Writing Emotions, Attention Regulation, and Productivity: An Intensive Longitudinal Study

Ekholm, Eric 01 January 2019 (has links)
Emotions pervade academic situations and influence the ways that learners think, behave, and achieve (Pekrun, 2006; Schutz & Lanehart, 2002). Writing may be a particularly emotion-laden activity, and especially so for students concentrating in fields that value writing production. However, very few studies have quantitatively investigated writers’ emotional experiences. The goal of the current study was to examine the writing-related emotions of graduate students enrolled in writing-intensive disciplines as well as how these emotions related to writers’ daily productivity and attention-regulation behaviors. To do so, the study employed a daily diary design (Gunthert & Wenze, 2012) in which participants completed brief daily surveys over 28 days. Data from a final sample of 183 participants were analyzed in several frameworks, including descriptive statistics, reliable change indices, and longitudinal modeling via generalized estimating equations. Results from these analyses indicate that writers tend to experience positive valence emotions (e.g. enjoyment, pride) more strongly than negative valence emotions (e.g. anxiety, shame) and that, for most of the emotions studied, writers’ emotional states tended to vary considerably from day to day. Furthermore, results indicate that writers’ emotional states are differentially related to daily writing outcomes such as attention regulation, time spent writing, and number of words written, and that state emotions are more predictive of these outcomes than are trait emotions. Theoretical implications and suggestions for future research are also presented.
4

Day-to-day moderators of the link between attachment insecurity and intimate partner violence in emerging adulthood: a daily diary study

Gou, Lisa 27 August 2019 (has links)
Emerging adulthood (ages 18-25 years) is a developmental period marked by changes in attachment, the onset of serious dating relationships, and rates of intimate partner violence (IPV) up to 40% and 90% for physical and psychological IPV, respectively. This dissertation aims to investigate moderators of the link between insecure attachment, a known risk factor for IPV, and psychological IPV, coercive controlling behaviours, and relational aggression in emerging adulthood. One hundred and seventeen undergraduate students in dating relationships were recruited to partake in a baseline assessment followed by a 14-day daily diary study. During the baseline assessment, participants self-reported on putative trait level risk factors such as demographics and insecure attachment. During the daily diary portion, participants reported on their use of partner aggression (physical and psychological IPV, coercive controlling behaviours, and relational aggression; however, due to low base rates, physical IPV could not be analyzed as an outcome), as well as their experiences of felt partner acceptance and rejection, support and conflict in their relationships, alcohol use, and stress for each day. I hypothesized that attachment anxiety, problems in the dyadic relationship (inadequate support, conflict, and felt rejection and anxiety about acceptance), and putative disinhibitors (stress and alcohol consumption) would be directly linked to risk for perpetration of all forms of aggression and interact to predict risk for partner aggression. Hypotheses regarding partner support, conflict, and felt regard were also tested. Specifically, I hypothesized that ratings of partner support fit, hurt as a result of conflict, and daily felt regard would differ for more insecurely attached versus more securely attached individuals. Following application of exclusion criteria, data from 98 participants were analyzed using multilevel modeling in Hierarchical Linear Modeling (Raudenbush et al., 1995). The results from this dissertation underscore the importance of attachment anxiety as an individual risk factor for IPV and identified more proximal risk factors that fluctuate on a daily basis. Attachment anxiety, felt rejection, and conflict were related to risk for all three forms of IPV. Unexpectedly, attachment avoidance was linked to decreased risk for coercive control. Anxiety about acceptance was uniquely associated with risk for psychological IPV, and inadequate support fit was uniquely associated with risk for coercive control. Greater attachment anxiety interacted with high conflict to predict greater risk for coercive control. No other significant two-way interactions between attachment anxiety and problems in the dyadic relationship emerged. Contrary to hypotheses, stress and alcohol consumption were linked to decreased risk for coercive control. Stress also appeared to suppress the link between dyadic problems and risk for psychological IPV on a given day, and dyadic problems paired with alcohol consumption was related to a decreased risk of coercive control. High stress and greater dyadic problems interacted to predict greater risk for coercive control as expected. No conclusions could be drawn about 2-way interactions between stress and dyadic problems and alcohol consumption and dyadic problems when predicting relational aggression, as the model did not converge. This study did not find support for the “perfect storm theory” of aggression (in which a 3-way interaction between risk factors is associated with greatest risk of IPV) when predicting psychological IPV. The “perfect storm theory” could not be tested in relation to coercive control and relational aggression as these models did not converge. The findings from this study contribute to our knowledge of why some people perpetrate IPV and not others, and why people perpetrate IPV on some days and not others. These results inform the multiple possible points of entry for prevention and interventions aiming to promote healthy relationships in emerging adults. / Graduate
5

Performance of Contextual Multilevel Models for Comparing Between-Person and Within-Person Effects

January 2016 (has links)
abstract: The comparison of between- versus within-person relations addresses a central issue in psychological research regarding whether group-level relations among variables generalize to individual group members. Between- and within-person effects may differ in magnitude as well as direction, and contextual multilevel models can accommodate this difference. Contextual multilevel models have been explicated mostly for cross-sectional data, but they can also be applied to longitudinal data where level-1 effects represent within-person relations and level-2 effects represent between-person relations. With longitudinal data, estimating the contextual effect allows direct evaluation of whether between-person and within-person effects differ. Furthermore, these models, unlike single-level models, permit individual differences by allowing within-person slopes to vary across individuals. This study examined the statistical performance of the contextual model with a random slope for longitudinal within-person fluctuation data. A Monte Carlo simulation was used to generate data based on the contextual multilevel model, where sample size, effect size, and intraclass correlation (ICC) of the predictor variable were varied. The effects of simulation factors on parameter bias, parameter variability, and standard error accuracy were assessed. Parameter estimates were in general unbiased. Power to detect the slope variance and contextual effect was over 80% for most conditions, except some of the smaller sample size conditions. Type I error rates for the contextual effect were also high for some of the smaller sample size conditions. Conclusions and future directions are discussed. / Dissertation/Thesis / Doctoral Dissertation Psychology 2016
6

Concurrent Substance Use and Related Problems among African American Adolescents: A Daily Diary Study

Devin Elizabeth Banks (8992460) 25 June 2020 (has links)
<p>African American adolescents have historically been considered at low risk for substance use relative to the White adolescent majority based on national prevalence estimates. However, during the last decade, African American adolescents’ rates of marijuana use—alone and in combination with other substances—have increased disproportionately relative to those of their White peers. Given the strong relationship between marijuana use and other substance use and the functional consequences associated with concurrent substance use during adolescence, the increase in marijuana use among African American youth may contribute to increased substance-related health disparities across the lifespan. Thus, the current study examined daily associations between marijuana use and other substance use among African American adolescents relative to their White peers. It also examined whether those associations differentially predicted behavioral health consequences among African American adolescents. Participants (N = 35; 42.9% African American) were adolescents age 14-18 who reported past 30-day use of marijuana, alcohol, and/or tobacco products. Respondents completed daily diaries reporting their substance use for 14 consecutive days, followed by self-report measures of internalizing symptoms, externalizing symptoms, and substance use problems. Multilevel regression and structural equation models were used to account for the nesting of days within individuals. Participants completed 458 diaries for a completion rate of 93.5%. African American respondents reported greater daily- and individual-level rates of marijuana use and concurrent substance use than White respondents. However, in multilevel models controlling for demographics, marijuana use was not related to concurrent use of alcohol and/or tobacco use and this relationship did not vary by race. Racial differences in the relationship between concurrent substance use and behavioral health consequences were observed such that the relationship was positive among White youth but not African American youth. Findings suggest that African American youth are at high risk for engagement in problematic patterns of substance use but that daily diary methods may not be most appropriate for illuminating these patterns. Despite these unexpected results, disparities in substance-related consequences among African Americans adults persist. Future research should examine long-term rather than proximal consequences of concurrent substance use among African American adolescents.</p><br>
7

Task-Switching, Flexible Self-Regulation, and Physical Activity in Young Adults

McCully, Scout N. 08 July 2014 (has links)
No description available.
8

A Daily Diary Investigation of the Impact of Flexible Work Arrangements on Physical Activity Among University Staff

Borowski, Shelby 07 June 2019 (has links)
The goal of this investigation was to examine personal and environmental factors that may influence levels of daily physical activity in a sample of university staff employees who use flexible work arrangements (flextime or telework). Our first aim was to investigate the link between self-efficacy, perceived barriers, and flexible work arrangements on daily physical activity. Our second aim was to investigate the link between work stress, job burnout, work-to-family conflict and flexible work arrangements on physical activity. Lastly, we investigated if the use of flexible work arrangements buffered the relationship between barriers, as well as job burnout, on physical activity. University staff employees who worked full-time, currently used a flexible work arrangement, lived with at least one family member were eligible to participate. Using a daily diary design, data were collected from 61 university staff employees. Participants completed an initial survey followed by daily diaries over the course of one workweek, resulting in 281 diary days. Data were analyzed with multilevel negative binomial models. Daily barriers and use of flextime were associated with lower physical activity. Self-efficacy, telework, work stress, and work-to-family conflict were not significantly associated with daily physical activity. Flexible work arrangements did not moderate the association between barriers and physical activity. However, flextime moderated the association between job burnout and physical activity. Individuals with high job burnout engaged in more physical activity on flextime days compared to non-flexible workdays. Implications regarding physical activity, flexible work arrangements, and workplace wellness programs are discussed. / Doctor of Philosophy / The goal of this study was to examine minutes spent engaging in physical activity each day among university staff members who use flexible work arrangements. Flexible work arrangements can help employees have more control over their work hours and schedules. In our sample, we were interested in exploring how personal factors, such as the confidence in their ability (i.e. self-efficacy), and barriers influenced the amount of time staff spent engaging in physical activity each day. We were also interested in exploring how work factors, specifically stress from work, feeling burned out from work, and feelings of work interfering with family, influenced the amount of time spent engaging in physical activity. Lastly, we examined how the time spent engaging in physical activity differed on workdays staff used a flexible work arrangement and on days they did not use a flexible work arrangement. We collected data from 61 university staff employees. Participants completed an initial survey followed by short surveys each night for one workweek. We found that the more barriers an individual reported, the less time they spent on physical activity. In addition, on workdays when staff used a flextime arrangement (i.e. control over when work is completed), they engaged in fewer minutes of physical activity than on days they worked typical hours. Self-efficacy, work stress, feeling that work interfered with family, and telework (i.e. control over where work is completed) did not influence physical activity. Interestingly, we found that on workdays that flextime was used, staff with high levels of burnout from their job engaged in more physical activity compared to standard workdays (i.e. no control over their schedule). Implications regarding physical activity, flexible work arrangements, and workplace wellness programs are discussed.
9

Effects of Positive and Negative Events on Daily Relationship Effect for Clinical Couples: A Daily Diary Study

Mennenga, Kayla Dawn 01 August 2015 (has links)
Relationship satisfaction is a popular variable to consider when looking at long-term success for couples. Research indicates positive and negative events have an impact on relationship satisfaction. Considering the influence of the Vulnerability-Stress-Adaptation framework, the present study focuses on the daily impact of positive and negative events that happen outside of therapy on couple relationship satisfaction for couples seeking therapy. Daily diary methods were used to collect data, a first for using this method with clinical couples. Random effects and multilevel models of analysis controlled for days and couples. Results suggest that on any given day, positive events impact both male and female daily relationship satisfaction. Findings also propose that these events outside of therapy tend to occur more frequently in the evening on any given day, specifically for negative events. Understanding these findings, therapists have an opportunity to use therapy as a tool to enhance adaptive processes for couples in order for couples to continue experiencing higher levels of couple satisfaction.
10

Gender Differences in Overt Behavior and Mediators of Depression Severity

Ryba, Marlena Maria 01 August 2011 (has links)
For several decades, evolutionary and social learning theories have been explanatory frameworks to explicate gender differences in overt behaviors and the prevalence, etiology, and maintenance of mental health problems. To further explore relations among gender, overt behaviors, and depression severity, this study used a daily diary methodology to examine gender differences within thirteen behavioral domains and whether differntial frequency of overt behaviors and environmental reward mediated the relationship between gender and depression severity. Overall, females engaged in a significantly greater breadth of behavioral domains and reported a higher level of environmental reward. Females reported spending more time in the domains of health/hygiene, spiritual activities, and eating with others. In contrast, males spent a greater duration of time in the domains of physical activity, sexual activity, and hobbies and recreational experiences. In relation to males, females found social activities, passive/sedentary behaviors, eating with others, and engagement in “other” activities to be more rewarding. Gender had a significant direct effect on depression severity, with females reporting increased depression. This effect was attenuated by the mediator (total environmental reward) such that to the extent that females exhibited increased environmental reward, the gender effect on depression was reduced. These data support behavioral models of depression and have clinical relevance as highlighted in the context of behavioral activation interventions for depression.

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