Stability and change in personality traits from late adolescence to early adulthood: a longitudinal twin study

We conducted a longitudinal-biometric study examining stability and change in personality from ages 17 to 24 in a community sample of male and female twins. Using Tellegen's (in press) Multidimensional Personality Questionnaire (MPQ), facets of Negative Emotionality (NEM) declined substantially at the mean and individual levels, whereas facets of Constraint (CON) increased over time. Furthermore, individuals in late adolescence who were lowest on NEM and highest on CON remained the most stable over time, whereas those exhibiting the inverse profile (higher NEM, lower CON) changed the most in a direction towards growth and maturity. Analyses of gender differences yielded greater mean-level increases over time for women as compared to men on facets of CON and greater mean-level increases for men than women on facets of Agentic Positive Emotionality (PEM). Biometric analyses revealed rank-order stability in personality to be largely genetic, with rank-order change mediated by both the nonshared environment (and error) as well as genes. Findings correspond with prior evidence of a normative trend toward growth and maturity in personality during emerging adulthood.     

Gender differences and developmental change in externalizing disorders from late adolescence to early adulthood: A longitudinal twin study

Using data from over 1,000 male and female twins participating in the Minnesota Twin Family Study, the authors examined developmental change, gender differences, and genetic and environmental contributions to the symptom levels of four externalizing disorders (adult antisocial behavior, alcohol dependence, nicotine dependence, and drug dependence) from ages 17 to 24. Both men and women increased in symptoms for each externalizing disorder, with men increasing at a greater rate than women, such that a modest gender gap at age 17 widened to a large one at age 24. Additionally, a mean-level gender difference on a latent Externalizing factor could account for the mean-level gender differences for the individual disorders. Biometric analyses revealed increasing genetic variation and heritability for men but a trend toward decreasing genetic variation and increasing environmental effects for women. Results illustrate the importance of gender and developmental context for symptom expression and the utility of structural models to integrate general trends and disorder-specific characteristics.     

Gender differences in the Big Five personality development: A longitudinal investigation from late adolescence to emerging adulthood

The present study aims to investigate gender differences in the mean-level change of the Big Five from late adolescence to emerging adulthood. We analyzed longitudinal self-report data from 192 males and 211 females, using multigroup Latent Growth Modeling. Gender differences were found in the shape of the trajectory, as well as in the mean and in the variance of the growth curve parameters (i.e. the initial level and the rate of change). At time 1 (Age 16), females scored significantly higher on measures of Agreeableness, Conscientiousness, and Openness. Males, in contrast, scored higher than females on a measure of Emotional stability. In both males and females, Conscientiousness and Openness increased linearly from age 16 to age 20, whereas Energy/Extraversion remained stable. Emotional stability slightly increased in males and remained stable in females. Agreeableness increased linearly in males and showed a quadratic trend in females, first increasing and then declining over time. Finally, females showed higher interindividual variability than males on the trajectories of Conscientiousness and Emotional stability.     

Identity consolidation in early adulthood: relations with ego-resiliency, the context of marriage, and personality change

Identity consolidation during early adulthood was conceptualized as a process of investing oneself in new adult roles, responsibilities, and contexts and evaluating one's ongoing experience in order to construct a coherent, grounded, and positive identity. The current study longitudinally examined (age 21 to age 27) the roles of ego-resiliency, an important personality resource, and marriage, an important identity context, in the process of identity consolidation as it unfolded in a cohort of women who experienced early adulthood during the early 1960s. Prototypes of identity in marriage were developed to reflect the different ways these women invested and evaluated their identities in the context of marriage. Results showed that ego-resiliency at age 21 and the experience of identity in marriage at age 27 were both related to identity consolidation at age 27, and findings also suggested that the relation of age 21 ego-resiliency to age 27 identity consolidation was mediated by identity in marriage. Finally, successful identity consolidation was associated with increasing ego-resiliency from age 21 to age 27. Discussion focuses on the interaction between personality and social context in the process of identity consolidation and the role of identity consolidation in personality change.     

Developmental trajectories of marijuana use from adolescence to adulthood: personality and social role outcomes

Longitudinal trajectories of marijuana use from adolescence into adulthood were examined for adverse life-course outcomes among African-Americans and Puerto Ricans. Data for marijuana use were analyzed at four points in time and on participants' personality attributes, work functioning, and partner relations in adulthood using growth mixture modeling. Each of the three marijuana-use trajectory groups (maturing-out, late-onset, and chronic marijuana-users) had greater adverse life-course outcomes than a nonuse or low-use trajectory group. The chronic marijuana-use trajectory group was highly associated with criminal behavior and partners' marijuana use in adulthood. Treatment programs for marijuana use should also directly address common adverse life-course outcomes users may already be experiencing.     

The intersections of social class and the transition to adulthood

This article provides an introduction to and overview of the literature on how the transition to adulthood is shaped by social class. It brings together two strands of literature. The first reviews why and how the third decade of life has been reshaped by later and longer education. The second considers how the social class position of young adults influences their experience in the early adulthood years and how those experiences in turn affect their prospects in later life.     

Dramatic-erratic personality disorder symptoms: II. Developmental pathways from early adolescence to adulthood

This study examined the relationship over time between Cluster B personality disorder symptoms (borderline, histrionic, and narcissistic symptoms) and comorbid internalizing and externalizing symptoms in a community sample of 407 adolescents. Cross-lagged longitudinal models tested (a) the hypothesis that Cluster B symptoms reflect primary disturbances that give rise to co-occurring internalizing and externalizing symptoms; and (b) the alternative hypothesis that these Axis I symptom clusters reflect primary problems that interfere with normal personality development. Internalizing and externalizing symptoms each predicted subsequent Cluster B symptoms in girls, although these effects occurred only at specific developmental stages. Cluster B symptoms in boys and girls at ages 10 to 14 years predicted externalizing symptoms two years later. Instead of clearly supporting one hypothesis over the other, longitudinal models suggested gender-specific developmental effects that were partially consistent with both hypotheses.     

Singles ads: Gender,social class,and time

The contents of 800 singles ads were examined. They were compared by the gender of the advertiser, the year of appearance (1991 and 1986), and the SES of the target readership (affluent and general). There were very few advertisers who listed themselves as black, so these ads were not included in the study. Gender differences were most important. Men were more likely to offer financial security and seek attractiveness. Women were more likely to offer attractiveness and seek financial security. The gender differences were in agreement with those reported for over a decade and from many geographical areas, although less than half of the advertisers mentioned either finances or attractiveness. Contrary to our hypotheses, the contents of mens' and womens' ads were more different in 1991 than they had been in 1986 and more in conformity with sexual stereotypes. Ads in a paper with an affluent readership were more likely to mention educational and financial status while ads in a paper with a readership throughout the metropolitan area were more likely to mention physical characteristics.     

Cigarette smoking and personality change across adulthood: Findings from five longitudinal samples

Personality traits are related to cigarette smoking. However, little is known about the link between smoking and change in personality. Therefore, the present study examined whether current cigarette smoking and smoking cessation are associated with personality change across adulthood. Participants (n = 15,572) aged from 20 to 92 years were drawn from five longitudinal cohorts with follow-ups that ranged from 4 to 20 years. Compared to non-smokers, current smokers were more likely to increase on neuroticism and to decline on extraversion, openness, agreeableness and conscientiousness over time. Compared to the persistent smokers, those who quit had a steeper decline in agreeableness. Cigarette smoking is related to detrimental personality changes across adulthood, and the pattern was not improved by smoking cessation.     

Family capital and the invisible transfer of privilege: intergenerational support and social class in early adulthood

Sociologists have long recognized the relationships between family background and social class attainment. However, by neglecting the multiple ways in which families and parents provide advantages and the extent to which these advantages extend into adulthood, they may still be underestimating the role of families in the reproduction of class inequalities. This chapter explores these impacts under the conceptual rubric of family capital. A new battery of interviews with a diverse collection of young adults is used to illustrate these points and offer suggestions for future research and analysis.     

Continuity and change: assortative marriage and the consistency of personality in adulthood

How is personality stability possible amid the myriad of social changes and transformations that characterize a human life? We argue that by choosing situations that are compatible with their dispositions and by affiliating with similar others, individuals may set in motion processes of social interchange that sustain their dispositions across time and circumstance. To test this proposition we examined mate selection, using data on married couples from two ongoing longitudinal studies at the Institute of Human Development, University of California, Berkeley. Consistent with other research, the results point to homogamy as a basic norm in marriage. More important, the results show that marriage to a similar other promotes consistency in the intraindividual organization of personality attributes across middle adulthood. We offer some speculations for a more relational approach to the problem of individual continuity and change.     

Self-perceptions of stability and change in personality at midlife: the UNC Alumni Heart Study

The finding of personality stability in adulthood may be counterintuitive to people who perceive a great deal of change in their own personality. The purpose of this study is to determine whether self-reported perceived changes in personality are associated with actual changes based on a 6- to 9-year follow-up of 2,242 middle-aged male and female participants of the UNC Alumni Heart Study (UNCAHS). Respondents completed the Revised NEO Personality Inventory on two occasions and were asked to reflect back over a 6-year period and assess changes in their personality. The majority of respondents (n = 1,177; 52.5%) reported they had "stayed the same," while 863 (38.5%) reported they had "changed a little" and 202 (9%) reported they had "changed a good deal." Coefficients of personality profile agreement computed to evaluate global personality change for the three perceived change groups were essentially equivalent. Further, directional analyses of domain-specific changes in personality showed that perceived changes were weak predictors of residual gain scores. In an absolute sense, perceptions of stability or change were discordant in 8 of 15 (53%) comparisons. Self-perceptions of change are not an adequate substitute for objective assessments.     

Romantic relationships in early adulthood: Influences of family,personality, and relationship cognitions

Two hundred and sixty‐five participants and their romantic partners were involved in a prospective, longitudinal, and multimethod study during the transition from adolescence to adulthood. Guided by the development of the early adult romantic relationships (DEARR) model (Bryant & Conger, 2002), the research (a) investigated mid‐adolescent family experiences and individual differences in personality as predictors of qualities in the early adult romantic union and (b) evaluated the degree to which marital beliefs mediated these associations. Structural equation modeling partially supported the mediating effects of marital beliefs. The findings were generally consistent with the DEARR model, suggesting that it is informative to study early adult romantic relationship functioning within a developmental‐contextual framework, while simultaneously considering the unique effects of personality and relationship cognitions.     

Intimate relationship development during the transition to adulthood: differences by social class

This article examines differences in young adults' intimate relationships by social class. Lower-class adolescents are more likely to engage in intimate-relationship practices such as cohabitation, early marriage, and sexual activity that may lead to further economic and educational deprivation. Such adolescents have limited access to the special opportunities of emerging adulthood. Social class indirectly shapes the relationships of groups such as prisoners, military personnel, and sexual minorities whose memberships are highly class graded and who are subject to state-controlled relationship constraints. More research is needed on how laws and institutions constrain even the most intimate features of young lives.     

Trauma as an objective or subjective experience: The association between types of traumatic events,personality traits,subjective experience of the event,and posttraumatic symptoms

The study aimed to examine the discrete effect of objective (type of trauma and demographic characteristics) and subjective (proximity to the trauma, subjective experience of the trauma as a threat, the Big Five personality traits, and dissociative symptoms) factors on the risk for PTSD among 1,210 undergraduate students. The findings indicate that survivors of physical/sexual assault scored the highest on proximity to the trauma, subjective experience of the trauma as a threat, neuroticism, dissociation, and PTSD symptoms. In addition, subjective experience of the trauma, proximity to it, type of trauma, dissociation, and neuroticism were associated with the risk for PTSD symptoms. The findings point to the significance of both subjective and objective variables in the risk for PTSD symptoms.     

Social class and the experience of work-family conflict during the transition to adulthood

The challenges of juggling work and family responsibilities are well known, but there has been little attention to the distinctive work and family experiences of young adults. This chapter explores how class affects young adults' exposure to work-family conflicts and the strategies they use to manage their work and family responsibilities. Using data from a recent cohort of young adults, we find class and gender variations in work and family roles and work-family conflict. Early family formation, coupled with poor working conditions, lead those with lower educational attainments to experience more years of family-to-work interference. In contrast, young adults with more education have more work-to-family interference, and this is especially true for college-educated women.     

Continuity and change in personality traits from adolescence to midlife: a 25-year longitudinal study comparing representative and adjudicated men

In the first study, a hierarchical structure of personality traits was identified using data from a longitudinal study tracing two samples of men from adolescence to midlife (i.e., a representative sample of the general population and a sample of individuals adjudicated during their adolescence). The second study examined structural, rank-order, and mean-level continuity. Partial structural continuity was demonstrated through confirmatory factor analysis. Regarding rank-order continuity, the correlations were stronger as age increased, particularly for the adjudicated men. For mean-level continuity, the adjudicated men displayed higher scores from adolescence to midlife for nearly every personality trait related to Disinhibition and Negative Emotionality. Significant decreases were observed in these traits for both samples, supporting the hypothesis of a normative psychological maturation. Although both samples showed this maturation, the adjudicated men displayed a lower rate of change during adolescence and early adulthood. The two samples did not differ in Extraversion and this trait remained more stable, particularly for adjudicated men.     

Type D personality, physical symptoms and subjective stress: the mediating effects of coping and social support

Coping style and social support may represent mechanisms to explain the relationship between Type D personality and ill-health. This study investigated whether Type D is associated with physical symptoms and perceived stress in a non-cardiac population, and if these relationships are mediated by coping and social support. In a cross-sectional study, 304 participants (110 males, mean age 22.1 years) completed measures of Type D, physical symptoms, coping, perceived stress and social support. Results showed that Type D, the interaction of negative affectivity and social inhibition (NA × SI), was positively correlated with physical symptoms, perceived stress, and avoidant coping, and negatively correlated with social support, problem-focused coping and emotion-focused coping. A series of bootstrapped multiple mediator tests showed that social support and avoidant coping fully mediated the relationship between Type D and physical symptoms. Furthermore, social support and emotion-focused coping partially mediated the relationship between Type D and perceived stress. These findings demonstrate for the first time that Type D personality is associated with physical symptoms in a non-cardiac population. Social support and coping style represent mechanisms that can, in part, explain the relationship between Type D and physical symptoms, and Type D and perceived stress.     

Dimensions of social capital and life adjustment in the transition to early adulthood

The predictive relations between social capital depth (high-quality relationships across contexts) and breadth (friendship network extensivity) and early-adult, life adjustment outcomes were examined using data from a prospective longitudinal study. Interviews at age 22 yielded (a) psychometrically sound indexes of relationship quality with parents, peers, and romantic partners that served as indicators of a latent construct of social capital depth, and (b) a measure of number of close friends. In follow-up interviews at age 24, participants reported on their behavioral adjustment, educational attainment, and arrests and illicit substance use. Early-adolescent assessments of behavioral adjustment and academic performance served as controls; data on what were construed as interpersonal assets (teacher-rated social skills) and opportunities (family income) were also collected at this time. Results showed that depth was associated with overall better young-adult adjustment, net of prior adjustment, and assets and opportunities. Breadth was only modestly associated with later outcomes, and when its overlap with depth was taken into account, breadth predicted higher levels of subsequent externalizing problems. These findings are consistent with the notion that social capital is multidimensional and that elements of it confer distinct benefits during an important life transition.     

The development of social networks from early to middle childhood: Gender differences and the relation to school competence

The purpose of this study was to examine gender differences in social network development from early to middle childhood and the relation of network characteristics to school competence. Maternal report of 75 children's kin, nonkin adult, and friendship networks were collected at 3, 6, and 9 years of age. Teacher ratings of school competence were obtained at 9 years. While children showed changes in their social networks over time, expected gender differences were not found in the extensive nature of the nonkin network. However, as expected, preference for same-sex friends was noted in early childhood and intensified with age into middle childhood. For girls, but not for boys, social network characteristics were related to teacher ratings of social competence in school.The preparation of this paper was made possible by the support of the William T. Grant Foundation.