I present seven empirical studies that investigate two main themes regarding two main approaches of optimism: explanatory style and dispositional optimism. The first theme incorporates measurement issues and conceptual ideas of optimism and the second involves optimism interventions on depressive symptoms. In Study 1 I explored the potential psychometric structure of causal attributions and dispositional optimism. Attributions may be best viewed as reflecting large differences in cognitive style, and smaller independent positive- and negative-event biases. For dispositional optimism, a two-factor model was supported. Study 2 examined correlations between optimism and the Five-Factor Model of personality. Dispositional optimism and explanatory style had similar association patterns with personality, although there were some differences. Study 3 tested and supported a model in which dispositional optimism mediates the link between explanatory style and psychological well-being. Study 4 compared the levels of optimism expression in two ethnic groups, finding that Mainland Chinese participants were more optimistic and less pessimistic than White British. Study 5 examined attributional biases and found that individuals show more optimistic biased style for themselves than for other people. Studies 6 and 7 tested effectiveness of optimism interventions on depressive symptoms. It demonstrated that self-monitored optimism interventions on a daily basis could effectively reduce depressive symptoms and increase optimistic explanatory style. Taken together, the studies replicated some previous investigations regarding measurement issues and conceptual ideas of optimism, and explored novel approaches to examining the essence of attributional bias and effectiveness of optimism interventions in depression treatment. My investigation of attributional bias is the first to test this idea using new and comparable measures of attributions. Practicing self-administered optimism interventions is, to my knowledge, also the first time these interventions have been applied in a sample with mild-to-moderate depressive symptoms. This may provide an easily monitored and low-cost alternative to traditional treatments of depression.

Investigations of children's adjustment following the experience of a residential fire or other disaster has indicated that the level of PTSD symptoms experienced by the child victims varies as a function of exposure and degree of loss incurred due to the trauma in a dose-response relationship. Additionally, other variables may interact with the level of exposure and loss to increase or decrease children's risk of posttraumatic symptomatology following the fire. Children's use of coping strategies has also been shown to significantly predict children's level of posttraumatic stress symptomatology. This study examined the mediating role of coping as well as the contributions of children's attributional style and family environment in the explanation of children's posttraumatic symptomatology following residential fire. In the current study, 108 children and their parents were assessed approximately one to three months and again approximately seven to ten months following their experience of a residential fire. Results indicated that at the second assessment, attributional style served as a moderator between the degree of loss children experienced and children's use of coping strategies. Children with helpless attributional styles reported low levels of active and avoidant coping regardless of their level of loss due to the fire. Children with positive attributional styles reported using low levels of coping only if they also reported low levels of loss; in contrast, those children who reported positive attributional styles and high levels of loss reported using considerably higher levels of coping. In addition, the data indicated that coping acted as a mediator between loss and posttraumatic stress symptoms both at the first and the second assessments. Children's coping activities following a trauma like residential fire may be the avenue through which loss exerts its influence on children's psychological symptoms following residential fire. / Master of Science

The current study examined the association of hostile attributional bias (HAB) with the functions (proactive and reactive) and subtypes (reactive relational and reactive overt) of aggression as well as with perceived provocateur motivation (proactive or reactive) in a high school sample (mean age = 16.51; 50% male; 31% Caucasian). Revisions to a measure of HAB were made both in administration (adding animations/narration) and content (adding perceived provocateur motivation questions). Results indicated that the animation/narration measure showed comparable internal consistency reliability to the written and displayed an increased ability to predict total aggression. However, a unique relationship between HAB and reactive aggression was not found, nor was HAB for specific provocation scenarios (i.e., relational or overt) uniquely associated with the reactive subtypes of aggression. Proactive motives, when controlling for reactive ones, were correlated with HAB, anger to provocation, and aggression. The opposite was not found. Theoretical and clinical implications are discussed.

Recent efforts to understand and predict the onset and maintenance of aggression have considered the heterogeneity of this behavior. Dodge (1980) and others, have suggested a distinction in aggression based on two primary subtypes: reactive and proactive aggression. The form, severity and persistence of these aggressive subtypes may depend on an on-going interaction between individual characteristics and environmental characteristics that elicit varying antecedents and consequences (Frick, 1998; Lahey et al., 1999). In particular, there exists some empirical support for the existence of relations among social likeability, attributional style, and particular subtypes of aggression symptomology. However, the exact nature of this relation is unclear. The current study examined two competing models, the mediator and moderator models, to assess the nature of the relations among social likeability, attributional style, and aggression subtypes in a sample of 419 youth in a non-clinical community setting. Results suggest that the external, stable, global attributional style serves to mediate the relation between social likeability and reactive, but not proactive aggression. Implications for assessment and treatment of aggression in adolescents are discussed. / Master of Science

Research has documented a tendency among youth to have biased interpretations of ambiguous information. For example, anxious youth are more likely to interpret ambiguous situations as negative or threatening (e.g., Cannon & Weems, 2010). Similarly, when interpreting social cues, aggressive youth exhibit hostile attribution biases more often than non-aggressive youth in response to ambiguous situations (e.g., Crick & Dodge, 1996). Research suggests that youth with anxiety and aggression exhibit differential physiological reactivity in response to threat. However, research has yet to examine the linkages amongst physiological reactivity to ambiguous situations, anxiety, and aggression in adolescents. The current study had several interrelated aims. Youths’ physiological responding (i.e., heart rate and skin conductance) to a series of animated vignettes depicting ambiguous social situations was examined. Anxiety, aggression, and hostile attributional bias (HAB) were also tested as predictors of differential physiological responding to the vignettes, as well as the interrelations between anxiety and HAB and aggression and HAB. Eighty youth completed a physiological assessment in which they viewed a series of hypothetical situational vignettes while their heart rate and skin conductance were measured. Participants also completed questionnaires measuring symptoms of anxiety, aggression, and HAB. Results indicated that there was differential physiological responding to the vignettes such that participants’ heart rates showed a pattern of deceleration followed by acceleration across time. Physiological responses were predicted by HAB such that those with high HAB had higher heart rates and exhibited more pronounced deceleration and acceleration across time than those with low HAB. There was support for anxiety as a significant predictor of responses among those participants with higher levels of HAB such that heart rates remained elevated with very little deceleration across time, suggesting a pattern of physiological hyperarousal and blunted reactivity. However, aggression did not predict differential physiological responding to the ambiguous vignettes, nor did HAB moderate the association between aggression and physiological responding. These findings add to the literature by contributing to knowledge about physiological responding to ambiguous situations and associations between this link with anxiety, aggression, and HAB.

Cognitive vulnerabilities have been implicated in the development of post-traumatic stress disorder and alcohol use disorders, two disorders that commonly co-occur. The comorbidity of these two disorders continues to pose a significant threat to the well being of university students. This study investigated the associations between the cognitive vulnerability of negative attributional style and both post-traumatic stress symptoms and alcohol use patterns. The number of reported traumatic events were also included in analyses. A battery of self-report questionnaires was completed by 123 university undergraduate students (mean age of 20.41 years). Negative attributional style was found to be significantly associated with post-traumatic stress symptoms, but not with alcohol use. It was also suggested that multiple traumas have an impact on post-traumatic stress, despite levels of alcohol use. These results suggested that the cognitive vulnerability of negative attributional style is predictive of posttraumatic stress in students and research in this area is valuable for increasing resilience, prevention and recovery among trauma survivors. Recommendations for future research, especially concerning multiple traumatisation is discussed.

As part of the response to the threat of dangerous climate change a variety of methods have emerged for measuring greenhouse gas emissions to the atmosphere, assigning responsibility for those emissions, and informing decisions on mitigation actions. Many of these greenhouse gas accounting methods have developed in semi-isolated fields of practice, and this raises questions about how these different methods relate to each other, and whether they form ‘families’ of conceptually similar approaches. A useful distinction has developed within the field of life cycle assessment (LCA) between attributional and consequential methods, and this thesis explores the possibility of extending that distinction to categorise other forms of greenhouse gas accounting. Broadly, attributional methods are inventories of emissions/removals for a defined inventory boundary, while consequential methods aim to estimate system-wide changes in emissions that result from a decision or action. This thesis suggests that national greenhouse gas inventories, city inventories, corporate inventories, and attributional LCA are all attributional in nature, while project-level assessments, policy-level assessments, and consequential LCA are all consequential in nature. The potential benefits from creating this categorical framework include ensuring that individual methods are conceptually coherent, transposing lessons between methods of the same categorical type, and ensuring that the correct type of method is used for a given purpose. These various benefits are explored conceptually through the analysis of existing greenhouse gas accounting standards, and also empirically with the use of a bioenergy case study. The findings suggest that the attributional-consequential distinction is highly useful for conceptualising and developing greenhouse gas accounting methods, which is important, ultimately, for addressing dangerous climate change.

¡@¡@Owing to the entry into WTO, which requires an open insurance market, and the legislation of the six ¡§Financial Holding Company Acts¡¨ that allows cross deals across different financial sections and multi-channeled selling, Taiwan¡¦s insurance market, of which the ratio of life insurance arrived at 182% in 2006, is squeezing the marketing space of the local life insurance agents, frustrating and driving them away. ¡@¡@This research aims primarily to investigate the relationships of the specific personality traits of a life insurance agent, his/her attributional style of rejection and selling performance, and hopefully to offer tools in selecting potential life insurance agents. At the same time, this research hopes to render stimulating, training and helpful devices for the practicing agents of various types of personality. ¡@¡@The measurement scales in this research paper consist of five questionnaires about personality traits and attributional style of rejection, and the voluntary participants are agents working for a life insurance company of which annual performance is among the top five, according to the database of the Taiwan Insurance Institute, while collecting their annual performance data as the dependent variable. Three hundred copies of the questionnaires are distributed and there are 125 effective copies returned, at a ratio of 42%. The statistical approaches applied are correlation analysis and regression analysis in support of the hypothesis. ¡@¡@By correlation analysis and regression analysis, the conclusions reached are: 1, The extroversion construction in the ¡§Five-Factor of Personality Traits¡¨ interacts positively with the policy sale and the first-year premium collection, which reaches the level of significance. It shows that the better an agent¡¦s extroversion construction is, the better performance of his/her policy sale and first-year premium collection will be. 2, The stability of an agent¡¦s attributional style of rejection interacts negatively with his/her policy sale and first-year premium collection, which reaches the level of significance. It shows that the more stable an agent¡¦s attributional style of rejection is, which means he/she takes the rejection of the client as something normal, the worse performance of his/her policy sale and first-year premium collection will be. ¡@¡@The managerial implications and the following researching suggestions are also discussed in this research paper. Key words: The Five-Factor of Personality Traits, the Attributional Style of Rejection,Performance

Research has documented the age of first onset of depression is commonly in adolescence and young adulthood and that prepubertal onsets are occurring at an increasing rate. Thus, targeting interventions prior to this period of increased risk would maximize the opportunity to reduce the incidence of depression. To date, however, the limited research that has been done on protective factors has lacked some consensus and generalizability. This study focused on investigating potential individual and family protective factors and their roles in the development of depressive symptoms in early adolescent girls. More specifically, optimism was investigated as a possible mediator of the relationship between attributional style and depression. Furthermore, attributional style and family environment were hypothesized to moderate the effect of stress on depressive symptomatology. The participants of this study were 120 girls that were part of a school based cognitive behavioral group treatment study for girls with depression aged 9-14. Based on the ratings of symptoms by the girls and their caregivers, on a semi-structured diagnostic interview, two groups were identified: 1) girls that met the diagnostic criteria for a depressive disorder (n= 81), and 2) those that did not (control group; n= 39). Both samples also completed self-report measures of attributional style and family environment (i.e., cohesion, communication, and sociability), in addition to a projective measure which was coded for dispositional optimism. The results of this study suggested higher levels of optimism and more positive attributional styles independently predicted lower levels of depressive symptom severity; however, optimism did not impact the relationship between attributional style and depression. The results also demonstrated that girls who reported their families engage in more social/recreational activities had lower levels of depressive symptoms. Finally, increased life stress was not associated with increased levels of depression. The study's limitations, implications of the results, and recommendations for future research were discussed. / text

Although some individuals excel during the transition from high school to university, many struggle to adjust and experience repeated failures. To facilitate academic adjustment in those most at-risk of failure, vulnerable students were identified based on their pre-existing levels of preoccupation with failure (PWF; low, high) and primary control (PC; low, high). These factors were combined to create four distinct psychosocial typologies (e.g., low PWF, low PC). Students were subsequently presented with Attributional Retraining (AR), a control-enhancing treatment intervention. An AR (no- AR, AR) by group (failure-acceptors, failure-ruminators, achievement-oriented, over- strivers) 2 x 4 pre-post, quasi-experimental treatment design examined longitudinal differences in causal attributions, achievement emotions, PC, and achievement outcomes. AR encouraged all students to de-emphasize two uncontrollable attributions for failure and emphasize a controllable attribution. Most interestingly, AR was particularly beneficial for at-risk students. Notably, only failure-acceptors (low PWF, low PC) and failure-ruminators (high PWF, low PC) receiving AR reported more adaptive activity emotions and higher PC than their no-AR peers. For only failure-ruminators, those in the AR condition exhibited more adaptive attribution-related emotions than their no-AR peers. Conversely, only failure-acceptors receiving AR had higher grade point averages and fewer voluntary withdrawals than their no-AR counterparts. Results suggest the efficacy of AR in facilitating functional causal thinking for all students, whereas they also underscore  AR’s  value in promoting adaptive emotions, PC, and academic achievement for failure-prone students.