In this study an attempt was made to gain insight into the meaning of personality traits and how they can be arranged to build an instrument to be used for rating and selecting agents to sell life insurance.

The purpose of this study was to examine the retrospective perceptions of parent-child relations as measured by the Roe-Siegelman Parent-Child Relations Questionnaire (PCR), personality characteristics as they appear on the Minnesota Multiphasic Personality Inventory (MMPI) and types of crimes of prison inmates, specifically divided into aggressive and non-aggressive crimes.

The study was undertaken to discover if the summer camp experience enhanced personality traits of participants in the camp program. The study was implemented at Greene Family Camp in Bruceville, Texas, during the summer of 1985. Utilized were analyses of variance and two types of factor analyses: principal-components analysis with varimax rotation and principal axis factoring with oblique rotation of factor matrices elicited. Five personality areas were analyzed--sociability, independence, achievement, environmental awareness, and spirituality. Spirituality emerged so strongly that it was removed from further analyses. Remaining personality areas emerged, but groupings of variables, especially those relating to achievement and independence, suggest an inherent commonality among the complex facets of personality. Based on these findings, the researcher recommends further investigation and careful replication.

The purpose of this study is to give the results of a testing program in the low seventh grade of an urban school wherein intelligence, personality, achievement, and socioeconomic tests were given. The primary purpose of the tests was to determine what influence, if any, the environmental factors played in the individual learning process, but attention was given to other phases of the learning process as well.

This study was concerned with analyzing selected Texas school administrators in an attempt to locate intrapersonal patterns of (1) values, (2) leadership traits, (3) personality traits, (4) critical thinking ability, (5) perception, and authoritarianism. A second aspect was correlating these profiles with each other. The study had a threefold purpose. The first was to perform a detailed analysis of school administrators to determine selected intrapersonal patterns. The second was to determine possible relationships between these selected profiles. The third was to generate plausible hypotheses for testing the intrapersonal patterns found and for determining the magnitude of any existing relationships. The case studies revealed the uniqueness of each participant in this study. With the possible exception of one individual, certain weaknesses were evident in each of the participants. Canonical correlation and the Pearson correlation of D matrices determined that a relationship existed between many of the profiles. Eight hypotheses were presented at the close of the study as guides for additional research. The results of this study indicated that further research was justified in these particular areas. The results of this study indicated that intrapersonal patterns existed within school administrators and that these patterns or profiles are related. However, the determination of the magnitude of these relationships was left to additional research.

Doctor of Philosophy / Division of Biology / Theodore Morgan / Temperature is a critical environmental parameter and thermal variation has significant effects on local adaptation and species distributions in nature. This is especially true for organisms that are isothermal with their environment. Variation in temperature imposes stress and directly influences physiology, behavior, and fitness. Thus, to thrive across a range of thermal environments populations must contain sufficient genetic variation, the capacity to respond plastically, or some combination of both genetic and plastic responses. In this work I first quantified patterns of phenotypic and genetic variation in nature and then dissected the genetic basis of variation in thermal traits. In the first aim I used natural populations of Drosophila melanogaster collected from a latitudinal transect in Argentina to investigate variation in heat stress resistance and cold plasticity within and among populations. I found heat stress resistance was highly variable within populations, but was strongly associated with the monthly maximum average temperature of each site. For cold plasticity I was able to demonstrate significant variation in plasticity within and among populations, however the among population variation was best explained by the altitude of each site. I hypothesized that this was caused by a difference in temperature fluctuations at high altitude sites relative to low altitude sites. To evaluate this hypothesis I paired our study with existing laboratory data that demonstrated significant fitness differences between high and low plasticity (and altitude) sites when these populations were reared in variable thermal environments. Thus, cold plasticity is an adaptive response to environmental variation. The final project focused on understanding the genetic basis of thermal variation. I fine-mapped a single co-localized heat and cold tolerance QTL via deficiency and mutant complementation mapping to identify four novel thermal candidate genes. There was no overlap of the deficiencies or genes associated with cold or heat stress resistance. Sequence analysis of each gene identified the polymorphisms that differentiate the lines. To test for independent associations between these polymorphisms and variation in nature the Drosophila Genome Reference Panel was used to confirm associations between allelic variation and cold tolerance in nature.

This study tests the predictions made by several causal theories proposing different etiologies for childhood-onset and adolescent-onset conduct problems. It investigates a variety of causal factors proven to be important for the development of antisocial behaviors, specifically neuropsychological/cognitive deficits, temperamental vulnerabilities, dysfunctional parenting, deviant peers, and rebelliousness. Current theories generally agree that the early onset pathway is distinguished by interactions between a child with a difficult temperament and dysfunctional parent-child interactions. However, theories differ as to whether they emphasize the temperament and neurocognitive deficits of the child, or the parenting behaviors. In the adolescent onset pathway, theories typically focus on the importance of affiliation with deviant peers but differ as to whether this is attributed to a personality characterized by the rejection of traditional values and rebelliousness as leading to this association or failures in parenting practices. Seventy-eight pre-adjudicated adolescent (ranging in age from 11 to 18) boys housed in two short-term detention facilities and one outpatient program for boys at risk for involvement in the juvenile justice system in southeastern Louisiana participated in the current study. The sample was ethnically diverse (56% African-American) and largely came from facilities serving either a large urban or a largely suburban and rural region of the state. The sample was divided into two groups based on the youngest age of a self-reported delinquent act or parent-reported severe conduct problem. The childhoodonset group (n =47) displayed at least one serious antisocial behavior prior to age 12, whereas the adolescent-onset group (n =31) did not. As predicted, the childhood-onset group showed greater levels of dysfunctional parenting and CU traits. Contrary to predictions, however, this group also showed the strongest affiliation with deviant peers. The only variable strongly associated with the adolescent onset group was lower scores on a measure of traditionalism which indicates less endorsement of traditional values and status hierarchies. The implications of these results for understanding different causal trajectories to antisocial behavior and for designing better prevention and treatment programs for antisocial youth are discussed.

Therapeutic alliance is a robust predictor of future therapeutic outcomes. While treatment of normal children and adolescents is often hard, treating antisocial youth is especially difficult because of the social, cognitive, and emotional deficits experienced by these youth. This study investigated whether differing levels of callous-unemotional (CU) traits influenced the formation of therapeutic alliance in a sample of 51 adjudicated youth in juvenile institutions. Also, we tested whether therapeutic alliance influenced success in the institution and whether this association differed based on levels of CU traits. Results revealed that CU traits and selfreported delinquency were both modestly related to institutional infractions. Children low on both dimensions showed the lowest levels of institutional infractions. Additionally, these findings suggest that children high on both CU traits and delinquency reported better therapeutic alliance, but that youth with high CU traits committed more institutional infractions, despite their level of therapeutic alliance.

Adolescents commit nearly one-fifth of the sex crimes each year. Among those offenders exists a group of adolescent sex offenders with callous and unemotional (CU) traits who seem to show a more severe pattern of sexual offending. The current study attempts to test the importance of these traits by comparing adolescent sex offenders high or low on CU traits based on victim and offense characteristics, and offending history. A sample of 150 detained adolescents with a current sexual offense conviction were assessed through self-report, clinical interview, and file review. Results indicated that after controlling for a history of antisocial behaviors, the high CU group was more likely to have a greater number of victims, use more violence with victims, and engage in more offense planning than the low CU group. The high CU group was also more likely to offend against both strangers and family.

The current study was an investigation of the effectiveness of Functional Family Therapy (FFT) for improving the mental health, behavioral, and legal outcomes for justice-involved adolescents. A primary focus of the investigation was on whether Callous-Unemotional (CU) traits moderated the effects of treatment and whether therapists tailored the intervention to youths with these traits. The sample was 134 youths (15.34 years) who had been arrested and referred to a community mental health center for treatment by trained FFT therapists. Results indicated modest improvement over the course of treatment in the youths' emotional and behavioral functioning. CU traits were found to moderate treatment effects, wherein CU traits were associated with greater emotional and behavioral dysfunction prior to treatment, as well as greater improvement after treatment. However, CU traits also predicted greater self-reported, but not official reports, of delinquency at follow-up. Furthermore, results indicated some evidence for diverging treatment processes for youth with and without CU traits. Specifically, differences in response to changes in negative parenting varied between youth high and low on CU traits for some measures of emotional and behavioral functioning. Overall, FFT was found to be a promising treatment approach, but significant limitations in its effectiveness were also documented.