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- Genre: Doctoral Dissertation
Description
This study investigated the role of broad cognitive processes in the development of mathematics skills among children and adolescents. The participants for this study were a subsample of a nationally representative sample used in the standardization of the Woodcock-Johnson III Tests of Cognitive Abilities and the Woodcock-Johnson III Tests of Achievement, Normative Update (Woodcock, McGrew, & Mather, 2007). Participants were between 5 years old and 18 years old (N = 4721; mean of 10.98 years, median of 10.00 years, standard deviation of 3.48 years), and were 50.7% male and 49.3% female. Structural equation models supported the theoretical suggestion that broad cognitive processes play significant and specific roles in the development of mathematical skills among children and adolescents. Implications for school psychology researchers and practitioners are discussed.
ContributorsCalderón, Carlos Oreste (Author) / Caterino, Linda (Thesis advisor) / Nakagawa, Kathryn (Thesis advisor) / Knight, George (Committee member) / Mcgrew, Kevin (Committee member) / Arizona State University (Publisher)
Created2012
Description
The purpose of this study was to expand on existing parental socialization models of youth achievement motivation for engaging in physical activity. This study examined the extent to which youth affective reactions and expectancy-value beliefs mediated the relation between parental influence tactics and youth physical activity. More specifically, the direct and indirect effects of parents' positive, negative and sedentary-control tactics, the direct effect of parents' desire to change their child's physical activity, and the moderating role of the socio-emotional climate on the relation between parental influence tactics and child outcomes were investigated. Data were collected from 171 4th, 5th, 7th, 8th and 9th grade students and their parents. Pedometers were used to collect youth physical activity data and all participants completed questionnaires. Youth expectancy-value beliefs and negative affective reactions to parental influence tactics were both positively related to youth physical activity. Path analyses revealed that youth expectancy-value beliefs and negative affective reactions fully mediated the direct effects of positive and negative parental influence tactics on youth physical activity, respectively. Moreover, parents' desire to change their child's physical activity was negatively related to parent's use of positive influence tactics. Although several moderators were examined, none were statistically significant (lowest p >.05). The results suggest that additional explanatory power is gained by including a broader range of parental influence tactics and youth affective reactions in models of achievement motivation. The findings are in accord with prior recommendations made to parents with sedentary children.
ContributorsPugliese, John (Author) / Okun, Morris (Thesis advisor) / Tinsley, Barbara J (Thesis advisor) / Kulinna, Pamela (Committee member) / Knight, George (Committee member) / Arizona State University (Publisher)
Created2011
Description
Contemporary theories of trauma identify the creation of a coherent trauma narrative and therapeutic exposure to trauma memories as potential recovery mechanisms. These factors are often inherent to the disclosure process, resulting in a parallel theoretical framework for experimental research that conceptualizes disclosure as a therapeutic intervention. The present investigation examined the moderational impact of disclosure following trauma on the link between trauma severity and symptoms of Posttraumatic Stress Disorder (PTSD). Disclosure status (discloser or nondiscloser), highest extent of disclosure, and length of delay to first disclosure were tested in a series of moderated regression models among a sample of female physical and sexual assault victims (N = 1087). Findings indicate that engaging in more detailed disclosure is associated with a modest beneficial impact on PTSD, but that the majority of nondisclosers have lower symptom levels than disclosers. There is also evidence for a small subset of nondisclosers that remain at heightened distress. A unique effect was found for disclosure delay, such that for physical assault, delaying disclosure is associated with a progressively weakening negative relation between time since the trauma and PTSD. At extreme delays, the association may become positive. Findings have implications for theories of trauma recovery and therapeutic interventions, including concerns about early interventions that emphasize disclosure. Future research may benefit from focusing on nondisclosing trauma victims to gain greater insight into recovery processes.
ContributorsFields, Briana (Author) / Barrera, Manuel (Thesis advisor) / Holtfreter, Kristy (Committee member) / Knight, George (Committee member) / Chassin, Laurie (Committee member) / Arizona State University (Publisher)
Created2010