A recent controversy has surrounded service dogs in public environments. Use of service dogs may trigger discrimination against individuals with non-visible disabilities. Major goals of this thesis study are to examine if significant differences exist in personality perceptions and attitude towards service dog owners with visible disabilities versus those with non-visible disabilities, and whether these perceptions and attitude predict how they would be treated in a public setting. The study employed a mixed 2 x2 factorial experiment design. The first independent variable was visibility of the disability, with the two levels being visible vs non-visible, and this factor was non-repeated in nature. The second independent variable was the target of evaluation, with the owner and the dog being the two levels, and this was a repeated measure. Specifically, this study assessed personality perceptions using the Big Five personality traits (Extraversion, Agreeableness, Conscientiousness, Emotional Stability, Openness to Experience) and operationalized attitude in terms of the positivity of personality perceptions. Additionally, this study examined whether an owner of a service dog with a non-visible disability would be treated differently from their counterpart who has a visible disability. In the study, participants were given a scenario and picture where they encounter an individual who either had a visible or non-visible disability with a service dog at a restaurant. Then, participants rated the owner and the dog individually on the Big Five personality traits, and indicated whether and how likely they would seat the individual and their service dog at the restaurant. When considering the visibility of a disability alone, an individual with a non-visible disability was perceived as less conscientious. When considering how the owner and the dog were perceived regardless of visibility of disability, owners were rated significantly lower than their dog on agreeableness and extraversion, but significantly higher on openness to experience. There was also a significant difference in treatment of the dog owners based on the visibility of their disability, service dog owners with non-visible disabilities have a higher likelihood of experiencing unlawful treatment. Furthermore, personality perceptions and attitude were significantly correlated with treatment for both individuals with non-visible and visible disabilities. Together, findings of this study inform the design of future research. Future research on this topic may help inform policy makers the challenges and unfair treatment facing individuals who have non-visible disabilities.

This thesis study aimed to (1) test whether first-year college students' perceived future self-connectedness predicts their interest in continuing premedical studies, (2) assess whether the presence of academic role models predicts their future self-connectedness and (3) pilot-test an experimental manipulation to increase future self-connectedness and interest in premedical studies. The study included two parts. First, students completed the pre-manipulation measures including future self-connectedness and interest in premed studies. Second, students were randomly assigned to an experimental or a control condition. In the experimental condition, students were asked to imagine that they were licensed doctors and write words of advice to their current selves. In the control condition students were asked to reflect and write about their daily routine. The results from this study showed a significant positive correlation of interest in remaining in premedical studies with both future self-connectedness and the presence of role models and future self-connectedness. Additionally, students in the experimental condition showed a significant increase in future self-connectedness after completing the manipulation. However, their interest in remaining in premedical studies did not change after the manipulation. Together, these findings suggest a method for keeping Freshman undergraduates from dropping out hastily from the premedical track.

The purpose of this thesis study is to widen the understanding of the effect culture on self-improvement. Past research found that Japanese students, when compared to their North American counterparts, are more likely to strive for self-improvement by persisting when they encounter academic setbacks. In addition to North Americans and Asians, this thesis examines South Asians as well. It is hypothesized that South Asians will have similar levels of self-improvement as East Asians. This thesis also looks at possible explanations for why culture affects self-improvement. Two variables, future self-connectedness and growth mindset, are proposed as these explanations. It is hypothesized that culture affects future self-connectedness and growth mindset, and those two variables in turn influence self-improvement. 

For this thesis, 100 undergraduate and recent college graduates completed online self-report measures. Results of independent t-tests showed that there were no significant differences between South and East Asians in self-improvement, which is consistent with what was hypothesized. There were also no differences between South and East Asians in future self-connectedness or growth mindset. The two Asian groups were then combined and compared to North Americans. Further independent t-tests were run, and results found that while the trend was as expected and Asians exhibited higher levels of self-improvement than North Americans, they did not exhibit significantly higher levels. There were also no significant differences between North Americans and Asians in growth mindset, however, North Americans had significantly higher levels of future self-connectedness than Asians, contrary to expectation. Results of mediation regressions found that neither future self-connectedness nor growth mindset significantly explained the effect of culture on self-improvement.

Social proof and mismatch of self-preference have been assumed to play an important role in the inference of value. They can be influential factors when it comes to decision-making in a mate-selection environment. In this thesis study, participants took an online survey in the form of a dating website. They answered a series of questions about the traits they would like to see in a potential mate. They were then presented with four potential mates and asked to rank them by their preferences. The results show that participants most preferred the potential mate with a high social proof and a low mismatch of self-preference and least preferred the potential mate with a low social proof and a high mismatch of self-preference. When comparing just social proof and mismatch of self-preference, there was not an interaction effect between the two. I conclude that even though social proof is a powerful influencing factor by itself, it did not have the power to trump the mismatch of self-preference.

The aim of this thesis was to explore whether major life changes can have a visual, perceptible impact on facial changes. The proposed mediation model suggested that changes in personality serve as a mediating factor between life experiences and facial changes throughout the lifetime. The proposed model was tested by examining (1) perceived personality changes, (2) perceived physical changes, and (3) major life changes in photos of individuals' old-aged faces compared to their respective younger faces. Participants in the current study viewed old and young photos of 29 Miss America pageant winners and rated how much each older face changed from its respective younger face on the following criteria: age change, overall change, personality change, and physical change. Responses were aggregated across participants for each target, and personality and physical items were separately composited into single measures of overall perceived personality change and overall perceived physical change. Results did not support the proposed model; however, some marginally significant correlations were found between the number of times the targets experienced a change in marital status and the appearance of being calm, feminine, and less changed in older age. However, these correlations were in the reverse direction from what was expected; further research is needed to understand how marital changes influence, and are influenced by, personality and physical changes. As a form of face perception, the processes underlying the proposed model are discussed in terms of possible social consequences. Further research is needed to explore whether changes in life events, such as the ones presented here, are related to specific facets of personality and physical changes, and how these perceptions translate to important social outcomes. Suggestions for future research pertaining to these issues are discussed.

The media often portrays professional basketball players as narcissistic, entitled and selfish, but are these portrayals accurate? After all, basketball is a team sport and team sport research indicates that players are more altruistic and selfless. This study proposes a way to assess narcissism and altruism through observable behaviors from all the active players in the NBA.

The purpose of this thesis study was to examine whether the "war on cancer" metaphor influences cancer perception and treatment decision. A total of 249 undergraduates (152 females) from a large southwestern university participated in an online survey experiment and were either randomly assigned to the control condition (N=123) or to the war prime condition (N=126). Participants in the control condition did not receive the metaphor manipulation while participants in the war prime condition received the subtle "war on cancer" metaphor prime. After the prime was given, participants read a scenario, answered questions related to the situation, and responded to demographic questions. The results suggested that, compared to participants in the no-prime condition, participants exposed to the war metaphor were more likely to (a) view melanoma as an acute disease, (b) choose chemotherapy over molecular tests, and (c) prefer more aggressive treatment. These findings illustrated the unintended consequences of the "war on cancer" slogan. The results were encouraging and in the predicted direction, but the effect size was small. The discussion section described possible future directions for research.