Distinguishing optimism from pessimism: Relations to fundamental dimensions of mood and personality.

Contrary to unidimensional conceptions of optimism and pessimism, factor analysis of 2 widely used instruments revealed that optimism and pessimism are empirically differentiable, but related, constructs. Moreover, consistent with expectations, optimism and pessimism were differentially linked with fundamental dimensions of mood and personality. Pessimism was principally associated with neuroticism and negative affect. Optimism was primarily associated with extraversion an positive affect. Findings are discussed with reference to current conceptual and measurement models of optimism and pessimism and their relations to broad dimensions of mood and personality. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Linking “big” personality traits to anxiety, depressive, and substance use disorders: A meta-analysis.

We performed a quantitative review of associations between the higher order personality traits in the Big Three and Big Five models (i.e., neuroticism, extraversion, disinhibition, conscientiousness, agreeableness, and openness) and specific depressive, anxiety, and substance use disorders (SUD) in adults. This approach resulted in 66 meta-analyses. The review included 175 studies published from 1980 to 2007, which yielded 851 effect sizes. For a given analysis, the number of studies ranged from three to 63 (total sample size ranged from 1,076 to 75,229). All diagnostic groups were high on neuroticism (mean Cohen's d = 1.65) and low on conscientiousness (mean d = ?1.01). Many disorders also showed low extraversion, with the largest effect sizes for dysthymic disorder (d = ?1.47) and social phobia (d = ?1.31). Disinhibition was linked to only a few conditions, including SUD (d = 0.72). Finally, agreeableness and openness were largely unrelated to the analyzed diagnoses. Two conditions showed particularly distinct profiles: SUD, which was less related to neuroticism but more elevated on disinhibition and disagreeableness, and specific phobia, which displayed weaker links to all traits. Moderator analyses indicated that epidemiologic samples produced smaller effects than patient samples and that Eysenck's inventories showed weaker associations than NEO scales. In sum, we found that common mental disorders are strongly linked to personality and have similar trait profiles. Neuroticism was the strongest correlate across the board, but several other traits showed substantial effects independent of neuroticism. Greater attention to these constructs can significantly benefit psychopathology research and clinical practice. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Social desirability scales: More substance than style.

Many psychologists still regard correlations with social desirability (SD) scales as evidence of the invalidity of measures, despite 20 yrs of research showing that this interpretation is usually unjustified. Although items or scales may be characterized as high or low in SD, there is little evidence that individuals differentially respond to this property when completing self-report questionnaires under normal instructional conditions. In an attempt to separate substance from style in SD scales, self-reports from 215 27–89 yr olds were compared to the external criterion of spouse ratings on a range of personality traits in the domains of neuroticism, extraversion, and openness to experience (the Neuroticism-Extraversion-Openness Inventory). When self-reports were "corrected" using scores from the Eysenck Personality Inventory Lie scale and the Marlowe-Crowne Social Desirability Scale, validity coefficients decreased in most cases. Both scales were substantively related to neuroticism and, to a lesser degree, to extraversion and closedness. Results suggest that correlations with SD scales should be given substantive rather than artifactual interpretations and that the widespread practice of correcting scores for lying, defensiveness, or SD should be questioned. (32 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The relation between personality and anxiety: findings from a 3-year prospective study

The authors tested the extent to which the personality dimensions of neuroticism, extraversion, and psychoticism (H. J. Eysenck & S. B. G. Eysenck, 1975) prospectively predicted global anxiety (assessed by items from the Brief Symptom Inventory: L. R. Derogatis & M. S. Spencer, 1982). The authors also examined prospective relations among these personality dimensions and depression to evaluate the specificity of findings. Participants were 466 young adults, primarily undergraduate students, assessed twice over a 3-year interval. An interaction between neuroticism and extraversion predicted both global anxiety and depression 3 years later. Findings indicated that personality, in particular the combination of high neuroticism and low extraversion, may play an important predisposing, etiological role in anxiety. Interpretations and implications of the predictive importance of the Neuroticism x Extraversion interaction in anxiety are discussed, and further speculations about the relation between anxiety and depression are put forth.     

Evaluating stability and change in personality and depression

Critics have argued that personality factors believed to represent a vulnerability to depression are not stable and are therefore state dependent. However, conclusions regarding the stability of personality and the relation between personality and depression have been drawn (a) without differentiating relative stability among individual differences from absolute stability of change scores and (b) without explicitly modeling change in personality as a function of change in depression. The relation between neuroticism and depression was examined in a sample of depressed outpatients (N = 71) receiving a 5-week trial of pharmacotherapy. Measures of neuroticism and extraversion demonstrated both relative stability and absolute change, and changes in neuroticism and extraversion scores were modestly or not at all accounted for by changes in depression scores. Claims that personality scores are not stable and are state dependent must be reconsidered.     

Longitudinal stability of personality traits: A multitrait–multimethod–multioccasion analysis.

The longitudinal stability of personality was investigated in a group of several hundred adults who were rated by themselves, their marriage partners, and their acquaintances in 1935-1938 and by themselves and their marriage partners in 1954-1955. For both men and women, there were very similar factorial structures in all five sources of ratings. Individual differences in neuroticism, social extraversion, and impulse control had reasonably high levels of longitudinal stability over a 19-year period. Both the synchronic and diachronic correlations converged across methods and discriminated among traits. Self-report personality inventory data available in 1935-1938 and 1954-1955 provided corroborating evidence of the longitudinal and methodological robustness of personality traits. In data gathered on the same panel in 1980-1981, the questionnaire and the life history correlates of neuroticism and social extraversion displayed patterns indicative of temporal stability, methodological convergence, and discrimination among constructs. The data of this longitudinal study carried out over five decades strongly indicate that there is a set of personality traits that are generalizable across methods of assessment and are stable throughout adulthood. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Differential Associations of Dispositional Optimism and Pessimism With Coping, Goal Attainment, and Emotional Adjustment During Sport Competition.

This study examined the associations of dispositional optimism and pessimism with athletes' coping, goal attainment, and affective states during a sport competition. Results of path analyses showed that dispositional optimism and pessimism correlated differently with coping and affective variables. Mediating analyses indicated that task-oriented coping partially mediated the relationship of optimism with postcompetition positive affective state, whereas disengagement-oriented coping fully mediated the relationship of pessimism with postcompetition anger/dejection. Ancillary hierarchical regressions also indicated that distraction-oriented coping may lead to positive outcomes when used in concordance with task-oriented coping. Overall, these results lent credence to the utility of a bidimensional model of optimism and pessimism. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Distinguishing optimism from pessimism in older adults: Is it more important to be optimistic or not to be pessimistic?

Confirmatory factor analysis revealed that the Life Orientation Test (LOT) consisted of separate Optimism and Pessimism factors among middle-aged and older adults. Although the two factors were significantly negatively correlated among individuals facing a profound life challenge (i.e., caregiving), they were only weakly correlated among noncaregivers. Caregivers also expressed less optimism than noncaregivers and showed a trend toward greater pessimism, suggesting that life stress may affect these dispositions. Pessimism, not optimism, uniquely predicted subsequent psychological and physical health; however, optimism and pessimism were equally predictive for stressed and nonstressed samples. By exploring optimism and pessimism separately, researchers may better determine whether the beneficial effects of optimism result from thinking optimistically, avoiding pessimistic thinking, or a combination of the two. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

An fMRI study of personality influences on brain reactivity to emotional stimuli.

Functional imaging studies have examined which brain regions respond to emotional stimuli, but they have not determined how stable personality traits moderate such brain activation. Two personality traits, extraversion and neuroticism, are strongly associated with emotional experience and may thus moderate brain reactivity to emotional stimuli. The present study used functional magnetic resonance imaging to directly test whether individual differences in brain reactivity to emotional stimuli are correlated with extraversion and neuroticism in healthy women. Extraversion was correlated with brain reactivity to positive stimuli in localized brain regions, and neuroticism was correlated with brain reactivity to negative stimuli in localized brain regions. This study provides direct evidence that personality is associated with brain reactivity to emotional stimuli and identifies both common and distinct brain regions where such modulation takes place. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Five-factor personality traits and subjective health among caregivers: The role of caregiver strain and self-efficacy.

This study examined the association among caregivers' five-factor personality traits and subjective health with particular emphasis on the role of two theoretically implicated mediators: multi-domain self-efficacy and caregiver strain. The sample comprised 536 informal caregivers (mean age = 62.9 years, SD = 19.9, 72% female, 98% White) of community-dwelling older adults with multiple functional impairments. Both physical health and mental health were negatively associated with neuroticism and positively associated with extraversion and conscientiousness. Agreeableness and openness were associated with better subjective mental health and physical health, respectively. Multiple mediation analyses indicated that self-efficacy mediated all observed associations between personality and subjective health, whereas caregiver strain selectively mediated the associations of neuroticism and agreeableness with mental health. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Personality and risk of cognitive impairment 25 years later.

The authors examined the relationship between personality and cognitive impairment in 4,039 members of the Swedish Twin Registry. Neuroticism and extraversion scores were collected in 1973 at midlife, and cognitive impairment was assessed in the same group 25 years later. Data were analyzed with case-control and co-twin control designs. Greater neuroticism was associated with higher risk of cognitive impairment in the results from case-control, but not from co-twin, analyses. Compared with both extraversion and introversion, moderate extraversion was associated with lower risk of cognitive impairment in both case-control and co-twin designs, as was the combination of high neuroticism and low extraversion. Findings are discussed in the context of theories related to personality, psychological distress, arousal, and cognitive function. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Personality and vocational interests in an adult sample.

Examined the relations between vocational typology developed by the 3rd author (1966, 1973) and the neuroticism–extraversion–openness (NEO) model of personality presented by the 1st 2 authors (1980) among 217 males and 144 females, aged 21–89 yrs. Young and old adult groups were similar to college students in most vocational interests, and the same pattern of sex differences was found. Correlations between Self-Directed Search and NEO inventory scores showed strong associations of investigative and artistic interests with openness to experience, and of social and enterprising interests with extraversion. Ss interested primarily in conventional occupations tended to be closed to experience. These associations were generally confirmed when spouse ratings were used as a non-self-report measure of personality traits in a subset of the Ss. The NEO Inventory complements the Holland typology, primarily in providing measures of neuroticsm. Research on the possible utility of supplementing vocational interest data with personality measures is suggested, and some implications for vocational counseling among older adults are discussed. (42 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Is “maturing out” of problematic alcohol involvement related to personality change?

Problematic alcohol involvement typically peaks in the early 20s and declines with age. This maturing out of alcohol involvement is usually attributed to individuals attaining adult statuses incompatible with heavy drinking. Nevertheless, little is known about how changes in problematic alcohol use during emerging/early adulthood relate to changes in etiologically relevant personality traits that also change during this period. This study examined the relation between changes in problematic alcohol involvement and personality (measures of impulsivity, neuroticism, and extraversion) from ages 18 to 35 in a cohort of college students (N = 489) at varying risk for alcohol use disorders. Latent growth models indicated that both normative and individual changes in alcohol involvement occur between ages 18 and 35 and that these changes are associated with changes in neuroticism and impulsivity. Moreover, marital and parental role statuses did not appear to be third-variable explanations of the associated changes in alcohol involvement and personality. Findings suggest that personality change may be an important mechanism in the maturing-out effect. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Cross-sectional studies of personality in a national sample: II. Stability in neuroticism, extraversion, and openness.

Investigated age differences in neuroticism, extraversion, and openness to experience using data from the National Health and Nutrition Examination Survey Epidemiologic Follow-up Study conducted by J. Cornoni-Huntley et al (1983). Cross-sectional analyses of data from 10,063 32–88 yr old Ss showed that older Ss were slightly lower in neuroticism, extraversion, and openness; that age trends were not curvilinear; and that there were no differences in personality scores that might be attributable to a mid-life crisis or transition. Comparison with data from 654 20–96 yr old Ss in the Augmented Baltimore Longitudinal Study of Aging (ABLSA) showed that the ABLSA sample was lower in extraversion and higher in openness than the national sample, although the differences were small in magnitude. (22 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Are anxiety and depression just as stable as personality during late adolescence? Results from a three-year longitudinal latent variable study.

Although considerable evidence shows that affective symptoms and personality traits demonstrate moderate to high relative stabilities during adolescence and early adulthood, there has been little work done to examine differential stability among these constructs or to study the manner in which the stability of these constructs is expressed. The present study used a three-year longitudinal design in an adolescent/young adult sample to examine the stability of depression symptoms, social phobia symptoms, specific phobia symptoms, neuroticism, and extraversion. When considering one-, two-, and three-year durations, anxiety and personality stabilities were generally similar and typically greater than the stability of depression. Comparison of various representations of a latent variable trait-state-occasion (TSO) model revealed that whereas the full TSO model was the best representation for depression, a trait stability model was the most parsimonious of the best-fitting models for the anxiety and personality constructs. Over three years, the percentages of variance explained by the trait component for the anxiety and personality constructs (73–84%) were significantly greater than that explained by the trait component for depression (46%). These findings indicate that symptoms of depression are more episodic in nature, whereas symptoms of anxiety are more similar to personality variables in their expression of stability. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Optimism, neuroticism, coping, and symptom reports: An alternative interpretation of the Life Orientation Test.

Found in two studies that the Life Orientation Test (LOT) had limited discriminant validity relative to measures of neuroticism. Furthermore, although previous correlations of the LOT with measures of symptom reports and coping behaviors were replicated, these correlations were eliminated when neuroticism was controlled. In contrast, the correlations of symptoms and coping with neuroticism remained significant when LOT scores were controlled. Thus, the LOT is virtually indistinguishable from measures of neuroticism, and previously reported findings using this scale are perhaps more parsimoniously interpreted as reflecting neuroticism rather than optimism. These findings are discussed in terms of existing support for models of optimism and self-control and general methodological issues in studies of personality and health. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Personality and leader effectiveness: A moderated mediation model of leadership self-efficacy, job demands, and job autonomy.

The trait theory of leadership is advanced by a joint investigation of the mediating role of (a) leadership self-efficacy (LSE = leader's perceived capabilities to perform leader roles) in linking neuroticism, extraversion, and conscientiousness with leader effectiveness and (b) the moderating role of job demands and job autonomy in influencing the mediation. Using K. J. Preacher, D. D. Rucker, and A. F. Hayes' (2007) moderated mediation framework, the authors tested the model (over a 2-year period) with matched data from 394 military leaders and their supervisors. Results showed that LSE mediated the relationships for neuroticism, extraversion, and conscientiousness with leader effectiveness. Moderated mediation analyses further revealed that LSE mediated the relationships for (a) all 3 personality variables for only those leaders with low job demands; (b) neuroticism and conscientiousness for only those leaders with high job autonomy; and (c) extraversion, regardless of a leader's level of job autonomy. Results underscore the importance of accounting for leaders' situational contexts when examining the relationships between personality, LSE, and effectiveness. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Mental and physical health of spouse caregivers: The role of personality.

Although personal resources of caregivers, such as coping skills and social support, have been shown to be important in understanding caregiver stress and health outcomes, personality traits have not previously been considered. The purpose of this study was to examine the association between the personality traits of neuroticism and dispositional optimism and mental and physical health outcomes. It was predicted that personality would have direct effects, and indirect effects through perceived stress, on health outcomes. Participants were spouse caregivers of patients diagnosed with Alzheimer's disease (AD). Results show that neuroticism and optimism were significantly related to mental and physical health. Furthermore, neuroticism had significant direct effects on all of the health outcomes, and substantial indirect effects, through perceived stress, on mental health outcomes. Optimism showed stronger indirect than direct effects on all health outcomes. These findings demonstrate the importance of including personality of the caregiver in theoretical and empirical models of the caregiving process. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Cultural differences in optimism, pessimism, and coping: Predictors of subsequent adjustment in Asian American and Caucasian American college students.

Cultural differences were examined between 111 Asian American and 111 Caucasian American students matched on age and sex in a prospective design study. Using separate optimism and pessimism scores, Asian Americans were found to be more pessimistic than Caucasian Americans. Asian Americans were also found to use more problem avoidance and social withdrawal coping strategies than Caucasian Americans. When health outcomes were assessed 6 weeks later, Asian Americans were found to report more depressive and psychological symptoms, but not more physical symptoms, than Caucasian Americans. Results of separate regression analyses for each ethnic group indicated that along with different coping strategies, lack of optimism predicted all 3 health outcomes for Asian Americans, whereas pessimism predicted 2 of the 3 health outcomes for Caucasian Americans. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Does who you marry matter for your health? Influence of patients' and spouses' personality on their partners' psychological well-being following coronary artery bypass surgery.

Research suggests that presurgical personality attributes influence postsurgical well-being in both patients and their spouses in the context of coronary artery bypass grafting (CABG) surgery. The authors hypothesized that a spouse's characteristics would influence a partner's psychological well-being, regardless of whether he or she was the patient or the caregiver. In this study, 111 male patients and their caregiver spouses completed measures of neuroticism, optimism, perceived marital satisfaction, and depression prior to elective CABG. Follow-up was conducted at 18 months. As expected, higher caregiver presurgical neuroticism predicted higher patient depressive symptoms at follow-up, with caregiver's concurrent 18-month affect controlled for. Likewise, higher patient presurgical neuroticism predicted higher caregiver depressive symptoms at follow-up. Additionally, higher patient presurgical depressive symptoms and lower presurgical optimism contributed to greater caregiving burden. Relationship satisfaction moderated these effects. These results suggest that partners' personality traits are important determinants of both patients' and their caregiving spouses' well-being. (PsycINFO Database Record (c) 2010 APA, all rights reserved)