Doctor of Philosophy / Department of Psychology / James C. Shanteau / Unintentional injuries represent the leading cause of death among Americans aged 1-44 years. While there have been many life-saving advances in engineering, attempts to save lives by changing people's behavior have been less successful. For instance, safety and health communications have sometimes led to increased knowledge and self-reported intentions to comply with recommendations, but traditional efforts to demonstrate changes in actual target behaviors have often failed. Research in many settings has shown that narrative communications have exceptional power to persuade and affect peoples' decisions. This suggests that safety and health messages might be more effective if they include narratives, such as brief stories about people who have been injured. The purpose of this dissertation is to determine if safety communications that include stories about injuries result in superior behavioral compliance when compared with traditional abstract safety messages. Teams of two participants assembled a swing set, using written instructions that contained relevant safety messages. Fifty-four teams were randomly assigned to three conditions: story-based safety messages, concrete nonstory safety messages, and traditional abstract safety messages. Compliance with safety messages was defined as the number of compliant components in the finished swing set. After adjustment for covariates, story-based messages resulted in a 20 percent improvement in compliance, compared with concrete nonstory and traditional abstract messages. Covariates included age, gender, (log) childcare experience, equipment assembly experience, presence of observer, and a final covariate related to timing of experimental sessions conducted by different experimenters. A positive relationship was noted between behavioral compliance and immediate (but not delayed) recall of message content. Narrative transportation was also positively related to compliance, but only within the story-based condition. Behavioral compliance was not related to remindings or judgments about the likelihood of injuries. The research is important because of its potential for improving safety communications and saving lives. Stories about injuries improved safety behavior even though the stories were brief and not designed to be entertaining or transporting. In contrast, the lack of correspondence between observed behavior and many surrogate measures suggests caution is in order when evaluating interventions using self-report measures, delayed memory, and other common dependent variables.

Doctor of Philosophy / Department of Counseling and Educational Psychology / Stephen L. Benton / This study explored the relationship between a variety of health behaviors and life satisfaction in college students. University students (N=794) enrolled in a midwestern university during the Fall, 2006 and Spring, 2007 semester, completed an online Health Behavior Assessment designed to measure body mass index (BMI), frequency of physical activity behavior, fruit and vegetable consumption, sleep behavior, alcohol use, frequency of use of stress-management skills, stage of change for physical activity, stage of change for fruit and vegetable consumption, stage of change for frequency of stress-management skills, and life satisfaction. As predicted, significant correlations were found between life satisfaction and BMI, frequency of physical activity, fruit and vegetable consumption, and frequency of use of stress- management skills. Students who regularly received 6-8 hours of sleep showed higher levels of life satisfaction. Students in the maintenance stage of change for physical activity behavior and stress-management skill use were found to have higher levels of life satisfaction compared to individuals in earlier stages of change. Results indicated that increased life satisfaction is related to a variety of health behaviors in college students.

Master of Science / Department of Psychology / Richard J. Harris / The increasing number of non-native English-speaking instructors in American universities constitutes an issue of controversial debate, concerning the interaction of native English- speaking students and non-native English speaking instructors. This study investigated the effects of native or non-native speakers and audiovisual or audio-only lecture mode on English native speakers’ comprehension and memory for information from a classroom lecture, measuring both factual memory and strength of pragmatic inferences drawn from the text. College students (N = 130) were tested on their comprehension of information derived from basic entomology lectures given by both an English native speaker and an English non-native speaker GTA. Participants also evaluated both lecturers in terms of communication skills. Results indicated that participants evaluated the native speaker as having better communication skills, which is in accordance with previous studies suggesting that both the difficulty of understanding non-native-accented speech (Reddington, 2008) and the possibility of prejudice triggered when listeners hear a non-native accent (Bresnahan et al., 2002) influence listeners’ evaluations of English non-native speaker instructors. Results revealed that familiarity with the topic also played an important role in listening comprehension, especially for lectures given by the non-native speaker. Likewise, the access to visual cues (gestures and facial expressions) enhanced understanding, but it was not a pre-requisite for adequate comprehension when the topic of the lectures did not require visual information. These findings were consistent with the polystemic speech perception approach (Hawkins, 2003), in that it is not essential to recognize all words in text in order to make connections with previous knowledge and construct meaning. Furthermore, overall participants took longer to answer questions from lectures given by the non-native speaker than by the native speaker. This suggests that non-native-accented speech may require more time to answer questions related to that speech, although listeners can adapt to it quickly (Derwing, 1995). Findings from this study are important in suggesting tools for thinking about how different aspects of a lecture can contribute to the learning process. Implications for further research are addressed.

Master of Science / Department of Psychology / James C. Shanteau / Situation Awareness (SA) measurement takes on many forms: subjective, direct, and implicit performance, each with limitations. Subjective measures are based on self and peer reports, which allow biases to enter the measurement. Direct measures, such as SA Global Assessment Technique (SAGAT), interrupt SA in order to probe the participants’ SA level using questions. Implicit performance measures are based on participants’ ability to complete SA tasks, which must be created for each domain. A new approach, Dynamic – SA Task (D-SAT), was developed using a microworld wildfire fighting simulation, Networked Fire Chief (NFC). D-SAT is an implicit performance measure that can be adapted to multiple domains, for example inattentional blindness. Scenarios were developed during study one by tracking participant performance and scenario situations. Study two used the scenarios developed during study one to test D-SAT’s ability to evaluate SA by comparing D-SAT performance to an established SA performance measure, situation awareness global assessment technique (SAGAT). While the manipulation used to create had an effect on D-SAT performance, it was not associated with the established SA performance measure. However, a signal detection theory (SDT) analysis showed additional promise for D-SAT being a useful SA measure.

Neuropsychological deficits may perpetuate the risk and chronicity of psychiatric disorder. Borderline Personality Disorder, characterized by significant suicide risk, intense affect and behavioural dysregulation, is frequently associated with the executive function (EF) deficits of decision making and inhibitory control. However, the role of inhibitory control on decision making remains poorly understood. This study examined the relationships among working memory, cognitive and motor inhibitory control, and IGT decision-making performance in 41 women with BPD and 41 healthy controls. Associations among EF and suicide risk were also explored. Experimental tasks included the Iowa Gambling Task, Digit Span, Stroop and Stop Tasks, and Raven’s Matrices. Only IGT decision-making deficits distinguished BPD subjects from healthy controls. Weaker yet normal range IQ and EFs in BPD women did not explain their disadvantageous IGT performance. Contrary to expectations, IGT deficits in BPD women did not predict any suicidal risk; however, intact interference control was as sensitive to suicidal risk as was depression. Normal interference control was associated with a reduction in suicide risk. While IGT decision making may be a marker for BPD, Stroop interference control is more sensitive to suicide risk and may represent a vulnerability for suicide that exists beyond psychiatric diagnosis.

Neuropsychological deficits may perpetuate the risk and chronicity of psychiatric disorder. Borderline Personality Disorder, characterized by significant suicide risk, intense affect and behavioural dysregulation, is frequently associated with the executive function (EF) deficits of decision making and inhibitory control. However, the role of inhibitory control on decision making remains poorly understood. This study examined the relationships among working memory, cognitive and motor inhibitory control, and IGT decision-making performance in 41 women with BPD and 41 healthy controls. Associations among EF and suicide risk were also explored. Experimental tasks included the Iowa Gambling Task, Digit Span, Stroop and Stop Tasks, and Raven’s Matrices. Only IGT decision-making deficits distinguished BPD subjects from healthy controls. Weaker yet normal range IQ and EFs in BPD women did not explain their disadvantageous IGT performance. Contrary to expectations, IGT deficits in BPD women did not predict any suicidal risk; however, intact interference control was as sensitive to suicidal risk as was depression. Normal interference control was associated with a reduction in suicide risk. While IGT decision making may be a marker for BPD, Stroop interference control is more sensitive to suicide risk and may represent a vulnerability for suicide that exists beyond psychiatric diagnosis.

Master of Science / Department of Family Studies and Human Services / Joyce Baptist / This report describes the role of cultural socialization in the ethnic identity formation of internationally adopted children. This report explores the process of integrating the child’s birth culture and the complexities that are involved in raising internationally adopted children. The theoretical frameworks of identity development and social construction will be used to provide a conceptual understanding of the process of ethnic identity development. This report will describe the use of Narrative Therapy and Child-centered Play Therapy to facilitate the process of identity development. Implications for clinical practice will be discussed.