Traits across the personality hierarchy differentially relate to positive and negative affect: Evidence for the predictive validity of empirically derived meta-traits

Role of Personality and Positive and Negative Affects in Coping Strategies of Nurses: A Cross-Sectional Study

Nurses are exposed to many highly stressful events. Individual variables, such as personality and affective state, have been related to vulnerability to maladaptive coping. Therefore, the objectives of this study were to analyze the relationships between the personality, positive and negative affects, and coping strategies of nurses and to establish the mediating role of affective state in the relationship between personality and coping. The sample was made up of 1,268 Spanish nurses aged 22-63 years who completed the Coping Strategies Inventory, the Positive and Negative Affect Schedule, and the 10-item Big Five Inventory. Descriptive analyses, correlations, and mediation models were estimated. The results showed relationships between the Big Five personality factors, positive and negative affects, and coping strategies. Negative affect was confirmed as a mediator between personality and less adaptive strategies and positive affect was confirmed on positive strategies. This study emphasizes the need to develop actions directed at teaching nurses adequate problem-solving strategies and training them in the ability to assign a different emotional value to complex situations.

A Validation Study of the Mini-IPIP Five-Factor Personality Scale in Adults With Cancer

The Mini International Personality Item Pool (Mini-IPIP) is a brief measure of the Five-Factor Model of personality with documented validity in healthy samples of adults and could be useful for assessing personality in patient populations such as individuals with cancer. The purpose of this study was to examine the psychometric properties of the Mini-IPIP in 2 samples of adults with cancer. A sample of 369 (Sample 1) and a sample of 459 (Sample 2) adults with cancer completed an online survey including the Mini-IPIP. To assess criterion validity, Sample 2 completed measures of emotional distress. Analyses included internal consistency (Samples 1 and 2), confirmatory factor analyses (CFAs; Samples 1 and 2), and correlations and a structural regression model to examine the associations between the 5 personality factors and emotional distress (Sample 2 only). Results showed that the Mini-IPIP demonstrated levels of internal consistency and CFA model fit that were similar to previous validation studies conducted in the general population. Consistent with prior research and theory, this study also found that personality factors measured by the Mini-IPIP were associated with measures of emotional distress in Sample 2. These findings suggest the potential utility of the Mini-IPIP in both research and clinical settings involving individuals with cancer.

The Evolutionary Life History Model of Externalizing Personality: Bridging Human and Animal Personality Science to Connect Ultimate and Proximate Mechanisms Underlying Aggressive Dominance, Hostility, and Impulsive Sensation Seeking

The present work proposes an evolutionary model of externalizing personality that defines variation in this broad psychobiological phenotype resulting from genetic influences and a conditional adaptation to high-risk environments with high extrinsic morbidity-mortality. Due to shared selection pressure, externalizing personality is coadapted to fast life history strategies and maximizes inclusive fitness under adverse environmental conditions by governing the major trade-offs between reproductive versus somatic functions, current versus future reproduction, and mating versus parenting efforts. According to this model, externalizing personality is a regulatory device at the interface between the individual and its environment that is mediated by 2 overlapping psychobiological systems, that is, the attachment and the stress-response system. The attachment system coordinates interpersonal behavior and intimacy in close relationships and the stress-response system regulates the responsivity to environmental challenge and both physiological and behavioral reactions to stress. These proximate mechanisms allow for the integration of neuroendocrinological processes underlying interindividual differences in externalizing personality. Hereinafter I further discuss the model's major implications for personality psychology, psychiatry, and public health policy.