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The youngest children in a school class are more likely than the oldest to be diagnosed with ADHD, but this relative age effect is less frequent in older than in younger school-grade children. However, no study has explored the association between relative age and the persistence of ADHD diagnosis at older ages. We aimed to quantify the association between relative age and persistence of ADHD at older ages.

Data from the Minnesota Longitudinal Study of Risk and Adaptation (MLSRA) were utilized to provide the first investigation into the early childhood antecedents of dehumanization (i.e., treating another as less than human) in adult romantic relationships. Drawing on a sample of 109 MLSRA participants, multiple assessments of maternal care and empathy were collected during infancy and early childhood. In adulthood, MLSRA participants and their romantic partners engaged in video recorded conflict discussions in which dehumanization perpetration was coded. Maternal hostility was a significant and unique predictor of dehumanization perpetration. This longitudinal association remained even when controlling for the partner’s displays of dehumanization and several demographic covariates. This study provides the first evidence of early childhood antecedents of dehumanization and highlights how experiences during the first few years of life can have enduring downstream consequences for people’s romantic relationships 20–30 years later.

The claim that insecure attachment predisposes individuals to anxiety was put forth by attachment theorists more than 45 years ago, yet evidence of this association has produced mixed results. By conducting a series of meta-analyses (k= 53, N= 4,970), we found that individuals with secure and insecure attachment representations did not differ in their reported anxiety symptoms. However, individuals with preoccupied (d= 0.35) but not dismissing attachment representations (d= −0.02) endorsed significantly more anxiety symptoms than secure individuals. Individuals with preoccupied attachment representations also endorsed greater anxiety symptoms than people with dismissing attachment representations (d= 0.31), and this difference was stronger when assessed in high-risk samples than low-risk samples. Unresolved individuals were more anxious than nonunresolved individuals (d= 0.29), but exploratory analysis suggested that secondary preoccupied attachment subtype drove this effect. Results highlight the relevance of attachment representations for prevention and intervention efforts targeting anxiety.

•Adult attachment appears to have its origins in early caregiving experiences.•Attachment styles appear to be more malleable in childhood and adolescence than in adulthood.•Early experiences do not determine adult outcomes.

•Attachment representations in adulthood take the form of a cognitive script.•Secure base script knowledge develops based on the quality of early caregiving.•The secure base script is stable and associated with adult relationship functioning.•The secure base script performs well relative to other measures of adult attachment.

•Attachment measures need to be improved; dimensional measures may be superior.•Attachment is influenced by the environment but the determinants remain elusive.•Attachment is transmitted between generations more weakly than previously thought.•Attachment in children is not highly stable; change is the norm not the exception.•Attachment is linked to outcomes, but not strongly; effects vary by type and domain.

OBJECTIVES To identify ages when adolescents were in sexual maturity stages 2 through 5; to explain the relations between breast (girls), genital (boys), and pubic hair (girls and boys) development between ages 9½ and 15½ years; and to evaluate synchrony of pubertal development across characteristics. DESIGN Annual pubertal assessments. SETTING Ten locations in the United States. PARTICIPANTS A total of 859 adolescents (427 boys [49.7%] and 432 girls [50.3%]; 737 white [85.8%] and 122 black [14.2%]). MAIN OUTCOME MEASURES Changes in the 5 stages of breast, genital, and pubic hair development. RESULTS Girls were in breast maturity stages 2 and 3 earlier than comparable pubic hair stages. Although breast development in girls started earlier than pubic hair development, girls completed breast and pubic hair development at approximately the same age. Black girls were in all stages of breast and pubic hair development earlier than white girls. Boys were in stages 2, 3, 4, and 5 of genital development before the comparable pubic hair stage. In boys, genital development started earlier than pubic hair development, but pubic hair development was completed in less time. Black boys were in genital and pubic hair development about 7 months earlier than white boys. Black and white boys completed genital development in approximately 4½ years, but black boys took approximately 6 months longer than white boys to complete pubic hair development. At stage 2, for 66.2% of girls, breast development preceded their pubic hair development; for 91.1% of boys, genital development preceded their pubic hair development. CONCLUSIONS The results of this study are useful in understanding normative variation in the timing and change in the development of secondary sexual characteristics at puberty. They will help identify adolescents with atypical changes in sexual maturation and unusual progression of sexual maturation and growth disorders.Arch Pediatr Adolesc Med. 2010;164(2):166-173--

Patterns of continuity and change in competence and resilience over the transition to adulthood were examined in relation to adversity and psychosocial resources, with a focus on adaptive resources that may be particularly important for this transition. Variable-focused and person-focused analyses drew on data from the Project Competence longitudinal study of a school cohort followed over 20 years from childhood through emerging adulthood (EA) into the young adulthood (YA) years with excellent retention (90%). Success in age-salient and emerging developmental tasks from EA to YA was examined in a sample of 173 of the original participants with complete data on adversity, competence, and key resources. Regressions and extreme-group analyses indicated striking continuity in competence and resilience, yet also predictable change. Success in developmental tasks in EA and YA was related to core resources originating in childhood (IQ, parenting quality, socioeconomic status) and also to a set of EA adaptive resources that included planfulness/future motivation, autonomy, adult support, and coping skills. EA adaptive resources had unique predictive significance for successful transitions to adulthood, both overall and for the small group of individuals whose pattern of adaptation changed dramatically from maladaptive to resilient over the transition. Results are discussed in relation to the possibility that the transition to adulthood is a window of opportunity for changing the life course.

Although the turning points theory posits that the successful engagement of the romantic and work domains in young adulthood represents an important opportunity for disrupting antisocial pathways, others have recently speculated that such turning points may be most applicable to the majority of antisocial youth who begin offending in adolescence (Adolescence-Onset [AO]), rather than those who begin early in childhood and persist (Early-Onset/Persistent [EOP]). This study was designed (a) to attempt replication of recent evidence that AOs demonstrate problem behaviors intermediate to EOP and Never Antisocial youth in young adulthood, which was confirmed; and (b) to examine the correlates of lower levels of antisocial offending among AOs and EOPs in the transition to adulthood. As expected, AOs were more likely than EOPs to desist by age 23. Nonetheless, positive work and romantic involvement between the ages of 21 and 23 were significantly associated with less externalizing problems for EOPs, but not AOs. In addition, illicit substance use and deviant peer association proved to be associated with externalizing problems at age 23, irrespective of the patterning of young adults' antisocial behavior in childhood and adolescence. Results suggest that the unique opportunities available in the transition to adulthood may hold particular promise for youth with persistently troubled early histories.