ABSTRACT
An association between the personality trait of hardiness and immune responses was explored. Blood samples were collected from 21 healthy individuals under nonstressful conditions, who had either high or low levels of hardiness. Functional immune assays tested for natural killer (NK) cell activity and proliferation responses to Candida albicans (Candida), purified protein derivative from Mycobacterium tuberculosis (PPD), lipopolysaccharide (LPS), concanavalin A (Con A), and Staphylococcus enterotoxin A (Staph A). Differences between high and low hardy groups on these immune responses were examined using Bonferroni adjusted independent t-tests. Results revealed significant differences between the groups for Candida, PPD, Con A, and Staph A. In all instances, the high hardy group had larger mean proliferative responses than the low hardy group. Implications of the study as well as avenues for future research are discussed.
Subject(s)
Antigens, Bacterial/immunology , Health Status , Killer Cells, Natural/immunology , Personality , Stress, Psychological/immunology , Stress, Psychological/psychology , Adult , Candida albicans/immunology , Female , Humans , Lipopolysaccharides/immunology , Male , Mycobacterium tuberculosis/immunology , Staphylococcus/immunologyABSTRACT
Two cross-sectional studies were conducted to examine the correlations between the concept of self-leadership (as described within the framework of the internal family systems model) and enhanced psychological, health, and work outcomes. In Study 1, self-leadership was significantly related to higher psychological functioning (e.g., effective coping style, greater optimism and hardiness, and less ineffectiveness and interpersonal distrust) and better health status (e.g., greater perceived wellness, less perceived stress, and fewer symptoms of illness) in a sample of university students (N = 270). In Study 2, in which a sample of corporate employees (N = 160) was examined, self-leadership was significantly related to greater perceptions of work satisfaction, enhanced communication, quality management, effective work relationships, and in terms of health outcomes, greater perceived wellness and less work stress. Implications of the relationships between self-leadership and psychological, health, and work outcomes are discussed.
Subject(s)
Leadership , Mental Health , Motivation , Self Concept , Stress, Psychological/psychology , Work , Adaptation, Psychological , Adult , Communication , Female , Humans , Interpersonal Relations , Job Satisfaction , Male , Surveys and QuestionnairesABSTRACT
Two studies were conducted to develop and validate the Sense of Support Scale (SSS). Study 1, which consisted of scale development and an evaluation with a sample of corporate and university employees, supported the scale's internal consistency and construct validity. Study 2, which was conducted with a sample of undergraduate students, was designed to evaluate the revised and shortened version of the SSS. The scale was found to be internally consistent and had a high test-retest reliability. Concurrent validity was supported by significant correlations to the Social Provisions Scale and the Interpersonal Support Evaluation List. Construct validity was supported by significant positive correlations to hardiness and approach-coping and significant negative correlations to avoidance-coping, stress, and symptoms of illness. The relationship between the SSS and symptoms of illness supported a main effect rather than a stress-buffering model. Implications for using the SSS to investigate the influences of social support on health are discussed.
