Chris S. Dula

Differing types of cellular phone conversations and dangerous driving

This study sought to investigate the relationship between cell phone conversation type and dangerous driving behaviors. It was hypothesized that more emotional phone conversations engaged in while driving would produce greater frequencies of dangerous driving behaviors in a simulated environment than more mundane conversation or no phone conversation at all. Participants were semi-randomly assigned to one of three conditions: (1) no call, (2) mundane call, and, (3) emotional call. While driving in a simulated environment, participants in the experimental groups received a phone call from a research confederate who either engaged them in innocuous conversation (mundane call) or arguing the opposite position of a deeply held belief of the participant (emotional call). Participants in the no call and mundane call groups differed significantly only on percent time spent speeding and center line crossings, though the mundane call group consistently engaged in more of all dangerous driving behaviors than did the no call participants. Participants in the emotional call group engaged in significantly more dangerous driving behaviors than participants in both the no call and mundane call groups, with the exception of traffic light infractions, where there were no significant group differences. Though there is need for replication, the authors concluded that whereas talking on a cell phone while driving is risky to begin with, having emotionally intense conversations is considerably more dangerous.

The Dula Dangerous Driving Index: An investigation of reliability and validity across cultures

The aim of this study is to further establish the validity and reliability of the Dula Dangerous Driving Index (DDDI). The reliability and validity of the instrument was investigated by comparing data from a US university sample, a US community sample, and a sample of Belgian traffic offenders. Exploratory and confirmatory factor analysis supported the presence of a four-factor structure with items for Drunk Driving forming a separate scale apart from items for Risky Driving, Negative Cognitive/Emotional Driving and Aggressive Driving. A multi-group confirmatory factor analysis with model constraints supported the validity of the DDDI. Inter-correlations revealed that the DDDI subscales are closely interrelated and uni-dimensionality of the measure was found in all three samples. This suggests the DDDI Total score can be used as a composite measure for dangerous driving. However, the validity of the subscales was demonstrated in the Belgian sample, as specific traffic offender groups (convicted for drunk driving, aggressive driving, speeding) scored higher on corresponding scales (Drunk Driving, Aggressive Driving, and Risky Driving, respectively), indicating that it is clinically meaningful to differentiate the subscales.

Examining relationships between anxiety and dangerous driving

Driving anxiety that has developed following crashes has been studied relatively frequently, but anxiety per se and its effects on driving has not as yet garnered much attention in the literature. The current study included 1121 participants and found higher levels of general anxiety were related to a wide variety of dangerous driving behaviors. While there were clear and expected sex differences on many dangerous driving variables, there were still more such differences with regard to anxiety levels and independent of sex, higher levels of anxiety were associated with greater levels of dangerous driving. Of particular import, it was found that the high anxiety group had caused significantly more crashes and engaged in more DUI episodes than the low and/or medium anxiety groups. Taken as a whole, the results suggest there is a tremendous need for more research in the area of anxiety and dangerous driving and that interventions for highly anxious drivers may well be warranted.

Reasons for Living and Alcohol Use Among College Students

Heavy alcohol consumption is prevalent on many college campuses and alcohol use has been linked to suicidal behavior. The present study examined reasons for living in 287 college students with varying levels of risk for alcohol-related problems. With the exception of the moral objections subscale of the Reasons for Living Inventory, significant relationships were not detected between alcohol use risk levels and reasons for living. The field is ripe for additional studies examining alcohol use and suicide in the college population, and results will likely lead to improved interventions to decrease the occurrence of suicidal behaviors.

Forgiveness and Aggression Among College Students

Violence is a serious health concern on and around college campuses in the United States. While spirituality is associated with health-related issues, little is known regarding its association with aggression among college students. Cross-sectional associations between forgiveness and aggression were examined among college students in Southern Appalachia (n = 494; ♀ = 74%; Mage = 22). Using multiple regression analyses and independent of demographic variables and religiousness, forgiveness of self and forgiveness of others but not feeling forgiven by God, were associated with lower levels of a variety of forms of aggression, with mostly medium effect sizes.

Ritualistic, Theistic, and Existential Spirituality: Initial Psychometric Qualities of the RiTE Measure of Spirituality

An expanded model to conceptualize sacred human experiences is discussed wherein the term Spirituality is broadened to include: (1) Ritualistic Spirituality, (2) Theistic Spirituality, and (3) Existential Spirituality. However, a measure incorporating this expanded model does not yet exist. A 67-item self-report questionnaire was developed and data were collected from 1,301 undergraduate students. A series of factor analytic procedures yielded a three-factor structure consistent with the guiding theoretical model and refinement produced three 10-item subscales. Evidence for construct validity and sound psychometric properties was indicative of a reliable, valid, and unique tool to assess the multidimensional nature of spirituality.

The dangers of rumination on the road: Predictors of risky driving

Past studies found many different types of factors can influence dangerous driving behaviors. Driver inattention, such as driving under the influence or using a cell phone while driving, was found to contribute to risky driving behaviors. Rumination is a cognitive process that may also contribute to risky driving behaviors due to its influence on attention and limited executive processes. The present study explores the potential role of rumination in dangerous driving behavior endorsement. It was hypothesized that trait rumination would be significantly related to dangerous driving behaviors and that this relationship would be conditional to the sex of the participant. Six-hundred and fifty-three Southeastern university students were recruited to participate and asked to complete multiple questionnaires measuring anger rumination, thought content, driving anger, and dangerous driving behaviors. It was demonstrated that self-reported risky driving behaviors significantly predicted dangerous driving behavior endorsement on the Dula Dangerous Driving Index. Trait rumination scores were found to predict self-reported dangerous driving, aggressive driving, and risky driving behaviors as well as trait driving anger scores. However, no conditional effects based on the sex of the participant were found. It appeared males and females were equally likely to report dangerous driving behaviors, driving anger thoughts, and trait anger rumination. Findings from the current study may assist in understanding how cognitive processes influence different driving behaviors and help develop methods to re-direct attention to safe driving behaviors, and conversely away from ruminative thoughts that increase the likelihood of dangerous driving.

A two-year review of suicide ideation assessments among medical, nursing, and pharmacy students

ABSTRACT Suicide is the 10th leading cause of death in the U.S. and has increased in prevalence during the past 15 years. Patients who attempt suicide are more likely to have contact with their primary care provider than a mental health provider in the month before attempting suicide, highlighting the need for competency in suicide ideation (SI) assessment. The Communications Skills for Health Professionals is an interprofessional course involving first-year medical, nursing, and pharmacy students. Specific instruction regarding assessment of SI was delivered through an online module and later practiced by students with standardized patients (SP). A final Objective Structured Clinical Examination featured an SP with depression, but without SI, though an assessment of SI was indicated. Three hundred fifty six interviews were reviewed and 55.1% (196/356) of students assessed for SI. Across professions, 65.5% (93/142) of medical students, 52.5% (32/61) of nursing students, and 46.4% (71/153) of pharmacy students performed an assessment. Medical students’ SI assessment was highest across the groups (p = 0.001), while pharmacy students’ SI assessment was lowest (p = 0.004). Results suggest that additional educational strategies should be developed and implemented to increase SI assessment performance in all professions, but especially in pharmacy students.