Identification and the development of competence: a 44-year longitudinal study from late adolescence to late middle age

The role of defense mechanisms in the development of planful competence (J. A. Clausen, 1993) was studied over a period of 44 years in participants from the Oakland Growth Study, who are part of the Intergenerational Studies of the Institute of Human Development. Planful competence was assessed on 4 occasions, from late adolescence (ages 15-18) to late middle age (age 62). The use of the defense mechanisms of denial, projection, and identification was assessed in late adolescence, based on Thematic Apperception Test (H. A. Murray, 1943) stories coded with the Defense Mechanism Manual (P. Cramer, 1991b). In late adolescence, the defense mechanism of identification was found to be positively related to competence, whereas the less mature defense of projection was related to lower levels of competence. For the group as a whole, hierarchical linear modeling (Bryk & Raudenbush, 1992) indicated that competence increased across the adult years, with a modest decline at late middle age. Individual differences for intraindividual change in competence were related to the use of identification: high use of identification in late adolescence was associated with relative stability in adult competence, whereas low use of identification in adolescence predicted changes in adult competence.     

An Increase in Early Adolescent Undercontrol Is Associated With the Use of Denial

This is a longitudinal study of change in undercontrol and its relation to the use of defense mechanisms with participants from the Berkeley Guidance Study of the Institute of Human Development, University of California, Berkeley. I predicted that use of the immature defense of Denial, but not Projection or Identification, would be related at early adolescence to an increase in undercontrol as assessed from 2 independent measures. The assessment of Ego Undercontrol indicated that the majority of children decreased with age, but for those who increased at early adolescence, the increase was significantly related to the use of Denial. Similarly, assessment of Externalizing Behavior Problems at early adolescence indicated that an increase in Externalizing Problems was related to the use of Denial. In addition to indicating psychological immaturity, the use of Denial prevents these children from recognizing the negative impact of their undercontrolled behavior.     

The Development of Defense Mechanisms

ABSTRACT It is proposed that defense mechanisms may be characterized as forming a hierarchy, from least to most complex, and that the lowest level defenses emerge early in life, while the more complex defenses emerge later in development Three defenses–Denial, Projection and Identification–were chosen to test this assumption A method for assessing the use of these defenses in Thematic Apperception Test (TAT) stories was developed and validated in a study of four age groups preschool, elementary school, early adolescent, and late adolescent The results of the study were consistent with the prediction Denial was used most frequently by preschool children, and decreased in use thereafter Identification was used minimally by preschool children but increased steadily through adolescence The use of Projection was most frequent in the two middle age groups Some evidence for sex differences, based on the internal/external orientation of the defense, also was found     

Associations between Marijuana Use During Emerging Adulthood and Aspects of the Significant Other Relationship in Young Adulthood

We used a prospective design to examine the association of marijuana use during the transition from late adolescence to early adulthood with reported relationship quality with significant other in the mid- to late twenties. The community-based sample consisted of 534 young adults (mean age=27) from upstate New York. The participants were interviewed at four points in time at mean ages 14, 16, 22, and 27 years. Marijuana use during the transition from late adolescence to early adulthood was associated with less relationship cohesion and harmony, and with more relationship conflict with control on variables reflecting the participants’ early interpersonal adjustment and the quality of the relationships with their parents. Our findings suggest that marijuana use during emerging adulthood predicts diminished relationship quality with a partner in the mid- to late twenties.     

Cigarette Smoking in Young Adults: Childhood and Adolescent Personality,Familial, and Peer Antecedents

Three models (independent, interdependent, and mediational) were hypothesized in this study, to examine the interrelation of personality, family, and peer determinants and their effects on tobacco use by young adults. Mothers were first interviewed about their children when they were between the ages of 1 and 10 years old. Three subsequent interviews were conducted with the children when they reached adolescence and young adulthood. Results show support for the mediational model. In accordance with family interactional framework conceptions, there was a sequence in patterning: from parenting during early adolescence; to personality and peer factors, extending to smoking in late adolescence; and culminating in smoking in adulthood. With a developmental approach, a number of psychosocial measures were related in both younger and older children. Nevertheless, some interesting developmental differences emerged. The findings suggest at least four possible targets for therapeutic or preventive intervention: the parent, the child, the adolescent, and the peer group.     

Age-Related Differences in the Transition from Adolescence to Adulthood and Links with Family Relationships

This study examined differences on major aspects of attaining adult status in the transition from adolescence into young adulthood. The attainment of developmental tasks and the quality of parent–child relationships were compared across adolescence and young adulthood. In addition, the extent to which relationships with parents are related to the attainment of young adulthood developmental tasks was also investigated. The study was conducted on 169 Israeli adolescents, early young adults, and late young adults. Results showed that developmental tasks are attained at different stages, and that the consolidation of adult status is achieved closer to the end of the third decade of life. Relationships with parents were found to be more positive following the transition from adolescence to early young adulthood. Adaptation of young adults was explained by the quality of relationships with parents and especially with fathers.     

Religiousness, spiritual seeking, and personality: findings from a longitudinal study

The hypothesis that personality characteristics in adolescence can be used to predict religiousness and spiritual seeking in late adulthood was tested using a structural equation modeling framework to estimate cross-lagged and autoregressive effects in a two-wave panel design. The sample consisted of 209 men and women participants in the Berkeley Guidance and Oakland Growth studies. In late adulthood, religiousness was positively related to Conscientiousness and Agreeableness, and spiritual seeking was related to Openness to Experience. Longitudinal models indicated that Conscientiousness in adolescence significantly predicted religiousness in late adulthood above and beyond adolescent religiousness. Similarly, Openness in adolescence predicted spiritual seeking in late adulthood. The converse effect, adolescent religiousness to personality in late adulthood, was not significant in either model. Among women, adolescent Agreeableness predicted late-life religiousness and adolescent religiousness predicted late-life Agreeableness; both these effects were absent among men. Adolescent personality appears to shape late-life religiousness and spiritual seeking independent of early religious socialization.     

A Longitudinal Family Study of Personality Change and Stability

The 19-year stability of personality from late adolescence to early adulthood was examined in a sample of 121 men and women who had participated in an earlier study of articulation and language development (Templin, 1966; Templin & Glaman, 1976). Personality was assessed using the Eysenck Personality Inventory (EPI). At the time of retest, personality data were also collected from the participants' mothers. Modest stability of individual differences in personality was observed, consistent with the literature on longitudinal studies of personality during late adolescence and early adulthood. For the Extraversion and Neuroticism scales, offspring means decreased significantly over the 19-year period such that the offspring means were closer to the mean scores of their mothers when they were followed up in adulthood as compared to their first testing in adolescence. There was, however, no change in mother-offspring resemblance from the initial test to retest. Mother-offspring resemblance appears to be due largely to aspects of personality that were stable from adolescence to early adulthood. Implications of these results are discussed in relation to the findings of previous longitudinal studies of adult personality and recent behavioral genetic evidence regarding personality change and stability.     

Associations Between Positive Development in Late Adolescence and Social, Health, and Behavioral Outcomes in Young Adulthood

Little is known about positive development across the transition from adolescence to young adulthood. The purpose of this paper was to use longitudinal data from a large community sample, the Australian Temperament Project, to investigate prospective associations between positive development at age 19?C20?years and changes in social, health, and behavioral outcomes at 23?C24?years. Data from 890 young adults (61.7% women) were analyzed using path analysis. Emotional health, physical well-being, friendship quality, reduced antisocial behavior, and positive development in young adulthood were predicted by higher levels of positive development in late adolescence, after controlling for baseline levels of respective outcomes, gender, and family socioeconomic status. Parent relationship quality and alcohol use were not significantly predicted. Based on these findings, interventions promoting positive development during adolescence should be investigated as a potential means of yielding positive social, health, and behavioral consequences well into young adulthood.     

Multiple protective and risk factors for drug use and abuse: cross-sectional and prospective findings.

A conceptual elaboration was developed that incorporates many risk and protective factors, and both direct and moderating (buffering) influences on drug involvement were tested. From prospective data, 14 factors related to drug use were selected and assigned empirically to either a multiple protective index (PFI) or a risk factor index (RFI). Analyses examined the relationships of the RFI, PFI, and their interaction on measures of cigarette, alcohol, cannabis, cocaine, and hard drug use cross-sectionally in late adolescence and later in young adulthood. These same variables were used to predict alcohol, cannabis, and cocaine abuse 8 years later. Vulnerability as measured by the RFI, PFI, and their interaction was highly associated with drug use in adolescence, moderately associated with certain types of drug use in young adulthood, and strongly associated with heightened drug problems in adulthood.     

Developmental associations between externalizing behaviors, peer delinquency, drug use, perceived neighborhood crime, and violent behavior in urban communities

This study examines the precursors of violent behavior among urban, racial/ethnic minority adults. Data are from an on-going study of male and female African Americans and Puerto Ricans, interviewed at four time waves, Time 1-Time 4 (T1-T4), from adolescence to adulthood. Structural Equation Modeling was used to analyze the developmental pathways, beginning in mid-adolescence (T1; age = 14.0 years), to violent behavior in adulthood (T4; age = 29.2 years). The variables assessed were: components of externalizing behaviors (i.e., rebelliousness, delinquency; T1, T3); illicit drug use (T2); peer delinquency (T2); perceived neighborhood crime (T4); and violent behavior (T3, T4). Results showed that the participants' externalizing behaviors (rebelliousness and delinquency) were relatively stable from mid-adolescence (T1; age = 14.0 years) to early adulthood (T3; age = 24.4 years). The participants' externalizing behaviors in mid-adolescence also had a direct pathway to peer delinquency in late adolescence (T2; age = 19.1 years). Peer delinquency, in turn, had a direct pathway to the participants' illicit drug use in late adolescence (T2), and to externalizing behaviors in early adulthood (T3). The participants' illicit drug use (T2; age = 19.1 years) had both direct and indirect paths to violent behavior in adulthood (T4). The participants' externalizing behaviors in early adulthood (T3) were linked with violent behavior at T3, and perceived neighborhood crime (T4), both of which had direct pathways to violent behavior in adulthood (T4). The findings suggest developmental periods during which externalizing behaviors, exposure to delinquent peers, illegal drug use, and neighborhood crime could be targeted by prevention and intervention programs in order to reduce violent behavior.     

Emerging adulthood. A theory of development from the late teens through the twenties

Emerging adulthood is proposed as a new conception of development for the period from the late teens through the twenties, with a focus on ages 18-25. A theoretical background is presented. Then evidence is provided to support the idea that emerging adulthood is a distinct period demographically, subjectively, and in terms of identity explorations. How emerging adulthood differs from adolescence and young adulthood is explained. Finally, a cultural context for the idea of emerging adulthood is outlined, and it is specified that emerging adulthood exists only in cultures that allow young people a prolonged period of independent role exploration during the late teens and twenties.     

Adolescent Precursors of Intensity of Marijuana and Other Illicit Drug Use Among Adult Initiators

This study examined (a) adolescent psychosocial risk factors for frequency (intensity) of marijuana use and for other illicit drug use among those who started using these drugs in early adulthood (adult initiators) and (b) the protective role of parent-adolescent relations in reducing or preventing drug use when adolescents enter early adulthood. The study's participants were male and female youth from a longitudinal prospective study. The participants' mean ages were 17 and 22 years at late adolescence and early adulthood, respectively. Independent measures assessed personality, parental, peer, and self-drug-use factors during late adolescence; dependent measures assessed frequency of marijuana use and other illicit drug use during early adulthood for initiators of the respective drug categories. The authors found that intensity of marijuana use was directly associated with the personality, parental, and self-drug-use domains and indirectly associated with the peer domain. Intensity of other illicit drug use was directly associated with personality and self-drug use. Analyses also revealed that some parent-adolescent relations factors buffered the effects of risk factors for both marijuana and other illicit drug-use intensity, whereas others enhanced the effects of protective factors against other illicit drug-use intensity. The results indicate that there are both commonalities and differences in precursors of marijuana and other illicit drug-use intensity among initiators of these drugs during early adulthood.     

Interpersonal relationship quality in young adulthood: a gender analysis

This study explored gender differences in the degree to which parent-child dyads and family system variables are associated with relationship quality in late adolescence and early adulthood. It was hypothesized that the quality of mother-child and father-child relationships, as well as family adaptability and family cohesion, would be positively correlated with the quality of intimate relationships in late adolescence and young adulthood. Further, it was hypothesized that correlations would vary according to gender. The sample was composed of 50 males and 48 females between the ages of 18 and 24. The results indicated that the relationship of family factors to the intimate relationships of young adults was similar for males and females. Specifically, a positive relationship with mother and greater adaptability in the family system during adolescence were related to more positive intimate relationships in young adulthood.     

Adolescent precursors of intensity of marijuana and other illicit drug use among adult initiators

This study examined (a) adolescent psychosocial risk factors for frequency (intensity) of marijuana use and for other illicit drug use among those who started using these drugs in early adulthood (adult initiators) and (b) the protective role of parent-adolescent relations in reducing or preventing drug use when adolescents enter early adulthood. The study's participants were male and female youth from a longitudinal prospective study. The participants' mean ages were 17 and 22 years at late adolescence and early adulthood, respectively. Independent measures assessed personality, parental, peer, and self-drug-use factors during late adolescence; dependent measures assessed frequency of marijuana use and other illicit drug use during early adulthood for initiators of the respective drug categories. The authors found that intensity of marijuana use was directly associated with the personality, parental, and self-drug-use domains and indirectly associated with the peer domain. Intensity of other illicit drug use was directly associated with personality and self-drug use. Analyses also revealed that some parent-adolescent relations factors buffered the effects of risk factors for both marijuana and other illicit drug-use intensity, whereas others enhanced the effects of protective factors against other illicit drug-use intensity. The results indicate that there are both commonalities and differences in precursors of marijuana and other illicit drug-use intensity among initiators of these drugs during early adulthood.     

The Interplay of Self‐Certainty and Prosocial Development in the Transition from Late Adolescence to Emerging Adulthood

The transition from late adolescence to emerging adulthood is a period of the life span that offers young people the possibility to consolidate their self‐certainty and prosociality. Both aspects are of core importance for increasing personal and societal well‐being. The purpose of this longitudinal study was twofold: (i) to examine patterns of change and stability in self‐concept clarity and prosociality; and (ii) to unravel over time associations between these constructs in the transition from late adolescence to emerging adulthood. In addressing both aims, we explored the moderating effects of gender. Participants were 244 Dutch emerging adults (46% male; mean age at T1 = 16.73 years) who completed six waves of data collection (mean age at T6 = 22.7 years). Findings highlighted that (i) self‐concept clarity developed nonlinearly, with an initial decline from T1 to T2 followed by an increase thereafter, while prosociality increased linearly over time and both self‐concept clarity and prosociality were characterized by high rank‐order consistency; (ii) self‐concept clarity and prosociality were positively related over time, with the effect of prosociality on self‐concept clarity being stronger than the reciprocal effect of self‐concept clarity on prosociality. Gender differences were detected in mean levels of self‐concept clarity and prosociality (male participants reported higher self‐concept clarity and lower prosociality than female participants) but not in their developmental pathways nor in their reciprocal associations. Copyright © 2016 European Association of Personality Psychology     

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.     

Continuity and change in psychopathic traits as measured via normal-range personality: a longitudinal-biometric study

The discriminant validity of the interpersonal-affective and social deviance traits of psychopathy has been well documented. However, few studies have explored whether these traits follow distinct or comparable developmental paths. The present study used the Multidimensional Personality Questionnaire (A. Tellegen, in press) to examine the development of the psychopathic traits of Fearless Dominance (i.e., interpersonal-affective) and Impulsive Antisociality (i.e., social deviance) from late adolescence to early adulthood in a longitudinal-epidemiological sample of male and female twins. Results from mean- and individual-level analyses revealed stability in Fearless Dominance from late adolescence to early adulthood, whereas Impulsive Antisociality declined over this developmental period. In addition, biometric findings indicated greater genetic contributions to stability in these traits and greater nonshared environmental contributions to their change over time. Collectively, these findings suggest distinct developmental trends for psychopathic traits from late adolescence to early adulthood.     

Defense mechanisms predict differential lifespan change in Self-control and Self-acceptance

Individual differences in the direction of personality change over a period of 40 years for two scales of the California Psychological Inventory (CPI: Gough & Bradley, 1996) - Self-control (Sc) and Self-acceptance (Sa) - as previously identified through the use of longitudinal hierarchical linear modeling (Jones, Livson & Peskin, 2003), were studied in a sample of men and women from the Institute of Human Development Intergenerational Studies. It was hypothesized that the use of defense mechanisms, as assessed by the Defense Mechanism Manual (DMM: Cramer, 1991a), would be differentially related to change in Sc and Sa, depending on whether participants were increasing or decreasing in that trait over time. Results indicated that for participants who decreased in Sa, the use of Denial was associated with less decrease. For participants who increased in Sc, the use of Identification was associated with less increase.     

Influence of sensation seeking on general deviance and specific problem behaviors from adolescence to young adulthood

Indicators of a Sensation Seeking latent construct were assessed during adolescence and used to predict changes in repeatedly gathered measures of a latent construct of General Deviance. A community sample of 595 male and female Ss was assessed 3 times over a 5-year period from late adolescence to young adulthood. Most Ss reported use of licit drugs, about one half had tried illicit drugs, and a substantial minority had engaged in other delinquent or criminal activities. The General Deviance construct was stable over time, although specific cross-effects were found. Sensation Seeking was moderately correlated with General Deviance at all 3 levels but did not predict directly the General Deviance construct over time; the effects of Sensation Seeking on later deviant behavior and attitudes were specific rather than general.