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 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.     

Personality traits in late adolescence predict mental disorders in early adulthood: a prospective-epidemiological study

Prospective relations between personality traits and mental disorders were assessed in a longitudinal study of a representative birth cohort of young men and women from Dunedin, New Zealand. Personality traits were assessed via self-report questionnaire at age 18, and mental disorders were assessed via diagnostic interview at both ages 18 and 21. High "negative emotionality" (a propensity to experience aversive affective states) at age 18 was linked with affective, anxiety, substance dependence, and antisocial personality disorders at age 21 when corresponding mental disorders at age 18 were controlled. Low "constraint" (difficulty inhibiting the expression of affect and impulse) at age 18 was linked with substance dependence and antisocial personality disorders at age 21 when corresponding mental disorders at age 18 were controlled. The findings are discussed in terms of their implications for the development and treatment of mental disorders in young adulthood.     

Childhood antecedents of Agreeableness: A longitudinal study from preschool to late adolescence

Although the consensus view is that Agreeableness originates from childhood difficultness and regulatory deficits, few studies have investigated such assumptions longitudinally. In this study, we examined this issue by assessing enduring and mediating effects of self-regulation as well as the impact of parenting behaviors on the development of Agreeableness from preschool to late adolescence. Longitudinal data from 965 Norwegian families following children from 1.5 years to 16.5 years were used. Path analyses revealed childhood difficultness at age 4 to be related to Agreeableness at age 16.5; this effect was mediated through emotion regulation in late childhood. However, such mediation effects were primarily found when parents used punitive practices towards their children. Our findings point to personality coherence throughout development.     

Gender variation in developmental trajectories of educational and occupational expectations and attainment from adolescence to adulthood

Adolescents' future expectations are a potentially important precursor of adult attainment and may illuminate how males and females vary in schooling and work. Thus, this longitudinal study examined gender variation in developmental trajectories of educational and occupational expectations from adolescence to adulthood and in connection to corresponding adult attainment. National data (NELS:88) including individuals aged 14 to 26 and hierarchical linear modeling analyses yielded several findings: Males and females had similar developmental trajectories of educational expectations from adolescence to adulthood with the sample average expecting to attend college. Probabilities of expecting a professional occupation were lower for males than females. Adolescent educational and occupational expectations predicted corresponding attainment in adulthood, although the relationship varied by gender. Males who reported high occupational expectations in adolescence had higher occupational attainment in adulthood compared to males with low occupational expectations, whereas females' adult occupational attainment did not vary by their adolescent occupational expectations. Gender variation in expectations and attainment is discussed in light of historical changes, and future directions of research are proposed.     

Female bisexuality from adolescence to adulthood: results from a 10-year longitudinal study

Debates persist over whether bisexuality is a temporary stage of denial or transition, a stable "3rd type" of sexual orientation, or a heightened capacity for sexual fluidity. The present study uses 5 waves of longitudinal data collected from 79 lesbian, bisexual, and "unlabeled" women to evaluate these models. Both the "3rd orientation" and "fluidity" models had support, but the "transitional stage" model did not. Over 10 years, 2/3 of women changed the identity labels they had claimed at the beginning of the study, and 1/3 changed labels 2 or more times. Yet, contrary to the "transitional stage" model, more women adopted bisexual/unlabeled identities than relinquished these identities; few bisexual/unlabeled women ended up identifying as lesbian or heterosexual. Overall, the most commonly adopted identity was "unlabeled." Bisexual/unlabeled women had stable overall distributions of same-sex/other-sex attractions but greater absolute fluctuations in attractions from assessment to assessment than lesbians. All women reported declines in their ratio of same-sex to other-sex behavior over time. These findings demonstrate that the distinction between lesbianism and bisexuality is a matter of degree rather than kind.     

Body dissatisfaction from adolescence to young adulthood: Findings from a 10-year longitudinal study

Given mixed findings regarding the unique trajectories of female and male adolescents’ body dissatisfaction over time, comprehensive longitudinal examinations are needed. This 10-year longitudinal, population-based study, with 1902 participants from diverse ethnic/racial and socioeconomic backgrounds in the Minneapolis/St. Paul metropolitan area, examined changes in body dissatisfaction from adolescence to young adulthood. Results revealed that: (a) female and male participants’ body dissatisfaction increased between middle and high school, (b) body dissatisfaction increased further during the transition to young adulthood, and (c) this increase was associated with an increase in BMI over time, such that the upward trend in body dissatisfaction became nonsignificant when BMI was controlled. These results highlight a trend in which diverse female and male youth are increasingly dissatisfied with their bodies as their BMI increases from middle school to young adulthood, and emphasize the need for targeted prevention efforts to intervene in this trajectory and mitigate potential harm.     

Transitions in sleep problems from late adolescence to young adulthood: A longitudinal analysis of the effects of peer victimization

Adolescence is a developmental period with high vulnerability to sleep problems. However, research identifying distinct patterns and underlying determinants of sleep problems is scarce. This study investigated discrete subgroups of, changes in, and stability of sleep problems. We also examined whether peer victimization influenced sleep problem subgroups and transitions in patterns of sleep problems from late adolescence to young adulthood. Sex differences in the effects of peer victimization were also explored. In total, 1,455 male and 1,399 female adolescents from northern Taiwan participated in this longitudinal study. Latent transition analysis was used to examine changes in patterns of sleep problems and the effects of peer victimization on these changes. We identified three subgroups of sleep problems in males and two in females, and found that there was a certain level of instability in patterns of sleep problems during the study period. For both sexes, those with greater increases in peer victimization over time were more likely to change from being a good sleeper to a poor sleeper. The effects of peer victimization on baseline status of sleep problems, however, was only significant for males, with those exposed to higher levels of peer victimization more likely to be poor sleepers at baseline. Our findings reveal an important role of peer victimization in predicting transitions in patterns of sleep problems. Intervention programs aimed at decreasing peer victimization may help reduce the development and escalation of sleep problems among adolescents, especially in males.

     

Trajectories of religious coping from adolescence into early adulthood: their form and relations to externalizing problems and prosocial behavior

Little is known about changes in religious coping and their relations to adolescents' and young adults' functioning. In 686 Italian youths, trajectories of religious coping were identified from age 16-17 years to age 22-23 years; cohorts of youths reported at 3 of the 4 assessments. Four trajectories of religious coping were identified: decreasing, low stable, high stable, and increasing. A decline in religious coping was associated with high levels of externalizing problems at age 16-17, whereas an increase in religious coping was associated with higher externalizing problems at ages 18-19 and 20-21 years and with relatively high involvement with deviant peers. High stable religious copers were high in prosocial behavior at three ages; low stable religious copers were higher than people undergoing change in their religious coping from mid-adolescence into early adulthood. These results can expand our current thinking about religious coping and adolescent adjustment.     

A longitudinal study of antisocial behaviors in early adolescence as predictors of late adolescent substance use: gender and ethnic group differences

Data from the National Longitudinal Youth Survey (NLSY) were analyzed to study interrelationships between antisocial behaviors in early adolescence (ages 14-15) and late adolescent alcohol and drug use 4 years later (when adolescents were 18-19). Correlations between classes of antisocial behaviors in early adolescence and substance use in late adolescence were of higher magnitude and more uniform for men than for women; for women, property offenses (e.g., vandalism) in early adolescence were more highly associated with alcohol use, alcohol-related problems, and illicit drug use in late adolescence than with either status offenses or transgressions against persons. Multiple regression analyses indicated that early-adolescent substance involvement was a significant predictor of late-adolescent alcohol and drug use. Additional significant predictors included early adolescent general delinquency, male gender, and non-Black ethnicity.     

Gender, social class, and the subjective experience of aging: self-perceived personality change from early adulthood to late midlife

This study explored the applicability of previous research (obtained with groups of college-educated women) about the subjective experience of aging in midlife to men and less-educated people. Two-hundred fifty-nine men and women who graduated from a public high school in 1955-1957 retrospectively assessed their feelings of identity certainty, confident power, generativity, and concern about aging for their 60s, 40s, and 20s. Participants reported higher levels of identity certainty, confident power, and concern about aging at each age, and a leveling off of generativity in their 60s. There were some gender and social class differences. Although men and women recalled the same trajectory of these feelings, men reported higher levels of identity certainty and confident power across age. Non-college-educated men recalled the highest levels of concern about aging across age. We discuss how these findings add to our understanding of the experience of aging in these domains.     

A longitudinal study of personality change in young adulthood

The present research examined personality continuity and change in a sample of young men and women assessed at the beginning and end of college. Two-hundred seventy students completed measures of the Big Five personality traits when they first entered college and then 4 years later. Analyses indicate small- to medium-sized normative (i.e., mean-level) changes, large rank-order stability correlations, high levels of stability in personality structure, and moderate levels of ipsative (i.e. profile) stability. Overall, the findings are consistent with the perspective that personality traits exhibit considerable continuity over time, yet can change in systematic ways.     

A longitudinal analysis of friendships and substance use: bidirectional influence from adolescence to adulthood

The reciprocal relation between deviant friendships and substance use was examined from early adolescence (age 13-14) to young adulthood (age 22-23). Deviance within friendships was studied using direct observations of videotaped friendship interaction and global reports of deviant interactions with friends as well as time spent with friends. Substance use was assessed through youth self-report at all time points. Multivariate modeling revealed that substance use in young adulthood is a joint outcome of friendship influence and selection processes. In addition, substance use appears to influence the selection of friends in late adolescence. Findings suggest that effective preventions should target peer ecologies conducive to substance use and that treatment should address both the interpersonal underpinnings and addiction processes intrinsic to chronic use, dependence, and abuse.     

Gender differences in math and english achievement: A longitudinal study

This study investigated gender-related developmental trends in math and English achievement as measured by classroom grades and standardized test scores. The sample consisted of 30 males and 30 females followed from 6th through 12th grade. Previous research suggests that developmental trends in male and female achievement may differ as a function of assessment context. Thus, it was hypothesized that female math and English classroom grades would remain stable over time but that achievement test scores in both subject areas would decline. For males, it was hypothesized that performance in both assessment contexts would remain stable. Results confirmed these hypotheses. Results also suggest that school-related responsibility is related to performance in both assessment contexts for females but not for males. The need to consider personal goals when assessing differences in academic ability and performance capabilities is discussed.     

Gender differences in the development of relationships during late adolescence

Until recently, inadequate measures of affiliation need and relationship closeness hindered investigations into the social development of adolescents. For example, assumptions about gender differences (Douvan & Adelson, 1966; Gilligan, 1982) and age-related changes (Dunphy, 1972; Erikson, 1968; Newman & Newman, 1976) in affiliation need and relationship closeness have remained virtually untested. To better understand adolescent social behavior and test these assumptions, recently developed measures of affiliation need and interpersonal closeness were used to examine seventy-four 18- to 20-year-olds. In support of Erikson's theory, need for social comparison declined with age for both sexes. However, in support of Gilligan's theory, not only were females more attached to their partners, but these gender differences were most pronounced for the 18-year-olds. Finally, Dunphy's (1972) assumption that adolescents' need for stimulation peaks around age 18 or 19 and then declines, and Newman and Newman's (1976) position that need for emotional support declines in later adolescence, held true--but only for females.     

Predicting cognitive control from preschool to late adolescence and young adulthood

In this longitudinal study, the proportion of time preschoolers directed their attention away from rewarding stimuli during a delay-of-gratification task was positively associated with efficiency (greater speed without reduced accuracy) at responding to targets in a go/no-go task more than 10 years later. The overall findings suggest that preschoolers' ability to effectively direct their attention away from tempting aspects of the rewards in a delay-of-gratification task may be a developmental precursor for the ability to perform inhibitory tasks such as the go/no-go task years later. Because performance on the go/no-go task has previously been characterized as involving activation of fronto-striatal regions, the present findings also suggest that performance in the delay-of-gratification task may serve as an early marker of individual differences in the functional integrity of this circuitry.     

Etiological contributions to heavy drinking from late adolescence to young adulthood

The authors examined genetic and environmental contributions to stability and change in heavy drinking from late adolescence to young adulthood in a sample of 1,152 twin pairs. In men, heavy drinking was similarly heritable at ages 17 (h2=.57) and 20 (h2=.39), and its stability owed primarily to common genetic factors. In women, heavy drinking was less heritable than in men at ages 17 (h2=.18) and 20 (h2=.30) and its stability was primarily due to enduring shared environmental influences. P3 amplitude, an event-related brain potential marker of alcoholism risk, was less predictive of heavy drinking in women than in men, providing further support for the proposition that biological factors have less impact on heavy drinking in young adult women than in young adult men.     

Family timing in late adolescence and early adulthood: The case of southern males

Social science research and theory about familial orientations and reproductive ideals have largely neglected males' attitudes. Drawing on demographic and status attainment perspectives, this study applies a model of processes underlying marriage and family timing to longitudinal data on 288 young adult males from the Southern Youth Study. Several posited influences of family of origin factors, significant others, and adolescent status and familial aspirations on marital timing and early family growth are assessed.Development of this report was sponsored in part by the Texas Agricultural Experiment Station and contributes both to TAES Project H-2811 and to USDA (CSRS) Regional Research Project S-81, and in part by the Maxwell Policy Center on Aging and the All-University Gerontology Center, Syracuse University through Title IV-C Grant #90-A-1054101 from the Administration on Aging, Department of Health, Education, and Welfare. Information for analysis was obtained by pooling data collected under grants provided by the Agricultural Experiment Stations of Alabama, Georgia, South Carolina, and Texas. Appreciation is expressed to John Womack, Paul D. Mader, and G. David Curry for their advice at various stages of this research.     

Sex-role development in late adolescence and adulthood

The present study investigated associations between age and sex roles in a cross-sectional analysis of people varying in age from late adolescence to middle adulthood. People in the androgynous sex role were older than sex-typed men and women. Cross-sex characteristics tended to be greater among older people, while same-sex characteristics were uncorrelated with age. Sex-role development appears to continue into adulthood, a view more in keeping with a transcendent model than a traditional model of sex-role development.This study was assisted by computer funds from the College of Human Development, The Pennsylvania State University. The authors thank an anonymous reviewer for helpful comments on an earlier version of this article.     

A heart rate analysis of developmental change in feedback processing and rule shifting from childhood to early adulthood

Over the course of development, the ability to switch between different tasks on the basis of feedback cues increases profoundly, but the role of performance monitoring remains unclear. Heart rate indexes can provide critical information about how individuals monitor feedback cues indicating that performance should be adjusted. In this study, children of three age groups (8-10, 12-14, and 16-18 years) performed a rule change task in which sorting rules needed to be detected following positive or negative feedback. The number of perseverative errors was lower for 16- to 18-year-olds than for 8- to 10-year-olds, and 12- to 14-year-olds performed at an intermediate level. Consistent with previous findings, heart rate slowed following feedback indicating a rule change, and the magnitude of slowing was similar for all age groups. Thus, 8- to 10-year-olds are already able to analyze feedback cues. In contrast, 12- to 14-year-olds and 16- to 18-year-olds, but not 8- to 10-year-olds, showed heart rate slowing following performance errors, suggesting that with age children are increasingly able to monitor their performance online. Performance monitoring may therefore be an important contributor to set-shifting ability.