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- Creators: Hall, Deborah
- Creators: Luecken, Linda J.
Description
This study investigated low regulatory flexibility as a mechanism of the associations of rumination with affect, internalizing symptoms, and substance use and problems. 403 first-year college students completed an online baseline survey assessing rumination, regulatory flexibility, internalizing symptoms, alcohol use, cannabis use, alcohol problems, and cannabis problems. Roughly 2.67 months later, 261 of these participants completed a follow-up survey assessing internalizing symptoms and substance use and problems. Additionally, 71 of the 403 participants completed an experimental study. Thirty-three participants were randomly assigned to undergo a rumination induction, and 38 were assigned to a control condition. All lab participants underwent an interpersonal stress task during which regulatory flexibility was observed and completed pre-test and post-role-play measures of positive and negative affect. Experimental study results showed regulatory flexibility did not mediate effects of rumination induction on positive (indirect effect: standardized beta (β)=-0.01, unstandardized beta (b)=-0.12, 95% Confidence Interval (CI) [-0.64, 0.41], p=.66) or negative affect (indirect effect: β=0.01, b=0.17, 95% CI [-0.29, 0.63], p=.48). Longitudinal study results showed regulatory flexibility did not mediate associations between baseline rumination and follow-up internalizing symptoms (indirect effect: b=0.01, 95% CI [-0.03, 0.05], p=.57), alcohol use (indirect effect: b=-0.03, 95% CI [-0.09, 0.04], p=.39), cannabis use (indirect effect: b=0.10, 95% CI [-0.06, 0.26], p=.21), alcohol problems (indirect effect: b=-0.05, 95% CI [-0.18, 0.07], p=.40), or cannabis problems (indirect effect: b=-0.10, 95% CI [-0.36, 0.16], p=.43). However, rumination predicted greater internalizing symptoms (Incidence Rate Ratio (IRR)=1.26, b=0.23, 95% CI [0.08, 0.37], p=.003) and cannabis problems (IRR=1.73, b=0.55, 95% CI [0.23, 0.87], p=.001). Regulatory flexibility predicted fewer alcohol use days (IRR=0.76, b=-0.27, 95% CI [-0.49, -0.05], p=.015) and problems (IRR=0.58, b=-0.55, 95% CI [-0.95, -0.15], p=.007), and less cannabis use for women (IRR=0.59, b=-0.53, 95% CI [-0.92, -0.14], p=.007) and fewer cannabis problems for men (IRR=0.21, b=-1.55, 95% CI [-2.50, -0.60], p=.001). Lack of agreement about how best to measure regulatory flexibility makes it unclear whether null associations were due to measurement problems or actual null effects. Research on how best to measure this construct is a priority. Findings indicate rumination and regulatory flexibility may be promising intervention targets.
ContributorsHill, Melanie Laurel (Author) / Meier, Madeline H (Thesis advisor) / Karoly, Paul (Committee member) / Luecken, Linda J. (Committee member) / Infurna, Frank J. (Committee member) / Arizona State University (Publisher)
Created2020
Description
A sense of closeness (or intimacy) is important in nearly every relationship in life, whether it is within friendships, family, or romantic relationships. In the current thesis, intimacy is measured within four specific dimensions: emotional, physical, intellectual and spiritual. Research shows that intimate relationships have been linked to mental and physical health outcomes. In addition, there is a novel explanation for the link between intimacy and health through rumination and sleep quality. The current study examined 2 primary aims: 1) to examine the relationship between intimacy and depression ; 2) to assess the role of intimacy, rumination and sleep quality on mental and on physical health. Results for Aim 1 suggest that there is a link between intimacy and both depression and physical health; where the higher the intimacy the lower the depression and the better physical health. For Aim 2, results indicated that there was a significant serial relationship between intimacy, rumination, sleep quality and both depression and physical health; where in the first model, higher intimacy predicted less rumination, better sleep quality, and lower depression; and, in the second model higher intimacy predicted less rumination, better sleep quality and higher physical health. The current study suggests that intimacy does have its own distinct contributions to health outcomes and that rumination and sleep quality do have a implication on intimate relationships.
ContributorsShehadeh, Karima Khalil (Author) / Mickelson, Kristin M (Thesis advisor) / Vargas, Perla (Committee member) / Hall, Deborah (Committee member) / Arizona State University (Publisher)
Created2020