Extraversion and neuroticism in team sport participants, individual sport participants, and nonparticipants

Scores on Extraversion and on Neuroticism as measured by the Eysenck Personality Inventory were compared for 90 undergraduate team sport participants, individual sport participants, and nonparticipants (43 men, 47 women, M age = 20.3 yr.). From past research and Eysenck's biological theory of personality, it was hypothesized that sport participants would score higher on Extraversion and lower on Neuroticism than nonparticipants, and that team participants would score higher on Extraversion and perhaps higher on Neuroticism than individual sport participants. By comparing scores for students in first year and final year, it was also investigated whether pre-existing personality differences drew people to sport (the gravitational hypothesis) or whether personality changed as a function of sport participation (the developmental hypothesis). The main findings were that team participants scored higher on Extraversion than both individual sport participants and nonparticipants, and that test scores did not change over time, supporting the gravitational hypothesis for Extraversion.     

Disclosing individual genetic results to research participants

Investigators and institutional review boards should integrate plans about the appropriate disclosure of individual genetic results when designing research studies. The ethical principles of beneficence, respect, reciprocity, and justice provide justification for routinely offering certain results to research participants. We propose a result-evaluation approach that assesses the expected information and the context of the study in order to decide whether results should be offered. According to this approach, the analytic validity and the clinical utility of a specific result determine whether it should be offered routinely. Different results may therefore require different decisions even within the same study. We argue that the threshold of clinical utility for disclosing a result in a research study should be lower than the threshold used for clinical use of the same result. The personal meaning of a result provides additional criteria for evaluation. Finally, the context of the study allows for a more nuanced analysis by addressing the investigators' capabilities for appropriate disclosure, participants' alternative access to the result, and their relationship with the investigators. This analysis shows that the same result may require different decisions in different contexts.     

Catastrophizing and pain perception in sport participants

Abstract

Two studies were conducted to examine the relation between catastrophizing and pain in sport participants. Study 1 compared the factor structure of the Pain Catastrophizing Scale (PCS; Sullivan et al., 1995) in a sample of 97 individuals who reported engaging in regular sporting activity and 140 sedentary individuals. Confirmatory factor analysis revealed that, in both sport and sedentary samples, a three factor solution, comprising rumination, magnification, and helplessness provided the best fit to the data. Study 2 examined differences in pain perception in 54 (28 women, 26 men) varsity athletes and 54 (27 women, 27 men) sedentary controls who participated in an experimental pain procedure. Participants completed the PCS prior to immersing one arm in ice water for one minute. Athletes reported less pain than sedentary individuals, and men reported less pain than women. For both athlete and sedentary groups, catastrophizing was a significant predictor of pain experience. Regression analyses revealed that although catastrophizing accounted for differences in pain perception between men and women     

Covert face recognition in neurologically intact participants

Prosopagnosic patients may maintain some ability to recognize familiar faces, although they remain unaware of this ability. This phenomenon – called covert face recognition – was investigated in neurologically intact participants, using priming techniques. Participants were quicker to indicate that a target-name was familiar when the preceding prime-face belonged to the same person compared with an unrelated familiar person. This was observed both when prime-faces could be recognized overtly and when they were presented too briefly to be recognized overtly (Exps. 1 and 2). Thus, covert face recognition was observed in neurologically intact participants. In Exp. 3, participants were quicker to recognize a familiar face when that person's face had been seen previously, but only when it had been recognized overtly on the first encounter. These results are interpreted within the framework of an interactive activation model of face recognition. Received: 21 September 1998 / Accepted: 2 March 1999     

Profiles of exercise dependence symptoms in Ironman participants

ObjectiveTo identify distinct profiles of Ironman participants based on levels of exercise dependence, and examine whether these profiles differed in relation to eating patterns and psychological distress.DesignCross-sectional survey study of 345 Ironman participants in Australia.Main outcome measuresExercise dependence symptoms were assessed via the Exercise Dependence Scale. Eating patterns were assessed via the three-factor eating questionnaire, and psychological distress measured using the Kessler 6 scale.ResultsLatent profile analysis identified five distinct profiles based on responses to the Exercise Dependence Scale, which were labelled: Asymptomatic; Time Committed; Low psychological dependence; Symptomatic; and At-risk. The At-risk and Symptomatic profiles had less healthy eating patterns and higher psychological distress compared with the other profiles.ConclusionsThese findings suggest important individual differences in the nature and severity of exercise dependence symptoms in Ironman participants. The majority of Ironman participants appeared to have a healthy involvement with Ironman. However, approximately 30% of Ironman participants belonged to the At-risk and Symptomatic profiles, which could reflect maladaptive patterns of exercise.     

Body checking and avoidance among behavioral weight-loss participants

The present study examined the psychological and weight-related correlates of body checking and avoidance behaviors in individuals who have lost weight through obesity treatment. Among 185 individuals in behavioral weight-control treatment, the prevalence of body checking and avoidance behavior was assessed, as well as the relationship of checking and avoidance to attitudinal disturbances, weight loss, and perception of struggling in treatment. Checking and avoidance were frequent, and they correlated significantly with higher overvaluation of shape and weight, lower self-esteem, greater body dissatisfaction, higher fear of fat, and the perception of greater struggling in weight-loss treatment. Checking was inversely correlated with the percentage weight lost in treatment and BMI lost but not related to pre-treatment or current BMI. Thus, body checking and avoidance behaviors were associated with psychological disturbances and poorer treatment outcome.     

Attendance probabilities of participants in a human experiment

This study investigated how different prompting strategies affected the attendance probabilities of 60 undergraduate students participating in an experiment. Subjects were randomly assigned to one of three conditions: no prompt, phone-message prompt, or phone-voice prompt. Analysis showed that participants in the no-prompt condition attended the study at a rate of 50%. Participants who received a phone-message prompt attended at a rate of 55%, while participants who received a phone-voice prompt attended at a rate of 100%.     

Sensation seeking among high- and low-risk sports participants

Investigated were the sensation seeking tendencies of a diverse sample of 166 athletes. The main aim of the study was to assess empirical support for Zuckermans (1994)Impulsive-Sensation-Seeking (ImpSS) theory and to replicate and extend previous research findings in this area using high- and low-risk sport participants. The Sensation Seeking Scale-V (Zuckerman et al., 1978) and the Impulsiveness Scale of the Impulsiveness-Venturesome-Empathy Scale (Eysenck and Eysenck, 1978), were administered to both male and female athletes currently engaged in one of eight sport disciplines: Hang-gliding, mountaineering, sky-diving, automobile racing, swimming, marathon running, aerobics or golf. Results provided support for the main thrust of Zuckermans ImpSS theory (a) that sensation seeking is integrated within a broader trait called Impulsive-Sensation Seeking; and (b) that total sensation seeking differentiated between high- and low-risk sport participants. On the other hand, these participants did not differ on the impulsiveness dimension. These and other findings are integrated with respect to Zuckermans (1994)Impulsive-Sensation Seeking model. Limitations of the present study and suggestions for future research are also discussed.     

Ethical issues surrounding human participants research using the Internet

The Internet appears to offer psychologists doing research unrestricted access to infinite amounts and types of data. However, the ethical issues surrounding the use of data and data collection methods are challenging research review boards at many institutions. This article illuminates some of the obstacles facing researchers who wish to take advantage of the Internet's flexibility. The applications of the APA ethical codes for conducting research on human participants on the Internet are reviewed. The principle of beneficence, as well as privacy and confidentiality, informed consent, deception, and avoiding harm are all illustrated through the use of a hypothetical online study.