In this study, we investigated mean-level personality development in children from 6 to 20 years of age. Additionally, we investigated longitudinal, bidirectional associations between child personality and maternal overreactive and warm parenting. In this 5-wave study, mothers reported on their child's personality from Time 1 (T1) through Time 4 (T4), and children provided self-reports from Time 2 (T2) through Time 5 (T5). Mothers reported on their levels of overreactive and warm parenting from T2 through T4. Using cohort-sequential latent growth curve modeling, we investigated mother reported child personality from 6 to 17 years of age and child reported personality from 9 to 20 years of age. Extraversion decreased linearly across the entire study. Benevolence and conscientiousness increased from middle to late childhood, temporarily declined from late childhood to mid-adolescence, and increased again thereafter. Imagination decreased from middle childhood to mid-adolescence and also increased thereafter. Mothers reported a temporary decline in emotional stability with an increase thereafter, whereas children did not. Boys and girls differed in mean-levels of the personality dimensions and, to a lesser extent, in the degree and direction of changes. Latent difference score modeling showed that child personality predicted changes in parenting and that, to a lesser extent, parenting predicted changes in child traits. Additionally, changes in child personality were associated with changes in maternal parenting. Results of the present study show that personality change is not directed at increasing maturity from childhood to mid-adolescence and that it elicits and is shaped by both positive and negative parenting.

This longitudinal study examined the bidirectional associations between parents' sense of competence and children's externalizing problems, mediation of these associations by parenting behaviors, and differences between mothers and fathers concerning these associations. A sample of 551 families with children (49.9% girls; mean age = 7.83 years, SD = 1.08) participated. We found children's externalizing problems to predict parents' sense of competence 6 years later, both directly and, for mothers but not for fathers, indirectly through inept discipline. Parents' sense of competence did not predict children's externalizing problems, either directly or indirectly via parenting behaviors. Some differences were found between mothers and fathers in the associations between parenting behaviors and sense of competence.

The present study aimed to (1) determine the long-term effectiveness of Home-Start, a preventive parenting program, and (2) test the hypothesis that changes in maternal sense of competence mediate the program’s effects. Participants were 124 mothers (n = 66 intervention, n = 58 comparison). Four assessments took place during a 1-year period. Latent growth modeling showed that Home-Start enhanced growth in maternal sense of competence and supportive parenting, and led to a decrease in the use of inept discipline. Results of mediational and cross-lagged analyses were consistent with the hypothesized model: Participation in Home-Start was related to the changes in maternal sense of competence, which in turn predicted changes in parenting. The results affirm the importance of directly targeting parental sense of competence in the context of prevention work with parents.

The present study examined how changes in child Big Five personality characteristics and overreactive parenting during the transition from childhood to adolescence predict adolescent adjustment problems. The sample included 290 children, aged 8-9 years. At three moments, with 2-year intervals, mothers, fathers, and a teacher reported on the child's personality, and mothers and fathers reported on their parenting behavior. At the third measurement moment, mothers, fathers, and children reported on the child's adjustment problems. Rank-order stability of the personality dimensions and overreactive parenting were high. Univariate latent growth models revealed mean-level decreases for extraversion, conscientiousness, and imagination. Mean levels of benevolence, emotional stability, and overreactive parenting were stable. Multivariate latent growth models revealed that decreases in extraversion and emotional stability predicted internalizing problems, whereas decreases in benevolence, conscientiousness, and emotional stability predicted externalizing problems. Increases in overreactive parenting predicted externalizing, but not internalizing problems. The associations were similar for boys and girls. The results indicate that changes in child personality and overreactive parenting during the transition to adolescence are associated with adolescent adjustment problems. Overall, child personality was more important than overreactive parenting, and children were more likely to "act out" than to "withdraw" in reaction to overreactive parenting.

This study investigated the type and stability of temperament profiles in toddlers, and relations of profile probability to negative and positive parenting trajectories. Mothers (N = 96) rated their child’s (41 girls and 54 boys) Sociability, Anger Proneness, and Activity Level four times during 1 year. The assessment of parenting included both maternal self-reports and observational measures. Latent profile analysis indicated three child temperament profiles: a well-adjusted ‘typical’ profile, an ‘expressive’ profile with heightened externalizing problems, and a ‘fearful’ profile with heightened internalizing problems. Although toddlers’ profile classifications were highly stable across 1 year, individual differences in (changes in) toddlers’ temperament profile probability occurred. We identified negative and positive parenting as environmental mechanisms that were related to the development of temperament profiles over time. These results support the notion that, in addition to having a genetic base, temperament is subject to maturation and experience over time.

This study examined whether changes in children's self-reported Big Five dimensions are represented by (developmental) personality types, using a cohort-sequential design with three measurement occasions across 5 years (four cohorts, 9-12 years at T1; N = 523). Correlates of, and gender differences in, type membership were examined. Latent class growth modeling yielded three personality types: Resilients (highest initial levels on all Big Five), Overcontrollers (lowest Extraversion, Emotional Stability, Imagination), and Undercontrollers (lowest Benevolence, Conscientiousness). Gender differences in type membership were small. Warm parenting, but not overreactive discipline, in childhood was associated with type membership. The types differed in adjustment problems by the end of middle adolescence. Personality change more likely occurs at the level of dimensions within types than in type membership.

This article reviews the evidence for theoretical models postulating that early adversity can set in motion a deleterious developmental cascade, involving changes in hypothalamic-pituitary-adrenal (HPA) axis activity that subsequently affect the development of self-regulation in early childhood. Focusing on the first five years of life, we describe studies showing that experiences of severe deprivation or maltreatment may both lead to a hypoactive HPA axis in children. However, it is too early yet to conclude what effects exposure to adverse conditions such as poverty or family instability have on young children's HPA axis, with both low and high levels of cortisol having been observed under these circumstances. Both patterns of HPA axis dysregulation have been associated with impairments in executive functions, which are important for self-regulation. There is promising evidence that interventions targeting parenting behaviour have the potential to remediate adversity-related biological and behavioural alterations.

An earlier meta-analysis and review indicated that trauma exposure may be related to lower levels of executive functioning in youth. Since different developmental trajectories were found for three core executive functions, the present study focused on working memory, inhibition, and cognitive flexibility specifically. We conducted a multi-level meta-analysis on 55 studies and 322 effect sizes published between 2001 and 2017 that were retrieved from MEDLINE, Embase, and PsycINFO. The 8070 participants in selected studies were aged 2-25 years. We investigated whether the association between constructs would be moderated by trauma-specific moderators (onset, duration, and type), and study (age, gender, ethnicity, and socio-economic status) and measurement (quality) characteristics. We found small to medium effect sizes for working memory (d = −0.49), inhibition (d = −0.46), and cognitive flexibility (d = −0.44). Moderator analyses showed that, for working memory, when studies used low-quality measurements the effect size was significantly stronger than when studies used high-quality measurements.Compared to single trauma-exposed youth, violence-exposed/abused and foster care/adopted youth showed more problems in inhibition, and foster care/adopted youth showed more problems in cognitive flexibility. Our findings imply that trauma-exposed youth have lower levels of executive functions. Clinical practice should incorporate problems in executive functioning, especially working memory, inhibition, and cognitive flexibility, in assessment and treatment guidelines.Funciones ejecutivas en jóvenes expuestos al trauma: un metanálisis Planteamiento: Un metanálisis y una revisión previos indicaron que la exposición al trauma podría estar relacionada con niveles más bajos de funcionamiento ejecutivo en los jóvenes. Objetivo: A medida que se encontraron diferentes trayectorias de desarrollo para tres funciones ejecutivas centrales, nos enfocamos específicamente en la memoria de trabajo, la inhibición y la flexibilidad cognitiva. Método: Realizamos un metanálisis multinivel con 55 estudios y 322 tamaños de efectos publicados entre 2001 y 2017, obtenidos de MEDLINE, Embase y PsycINFO. Los 8070 participantes en los estudios seleccionados tenían entre 2 y 25 años. Investigamos si la asociación entre los constructos sería moderada por los moderadores específicos del trauma (inicio, duración y tipo), y las características del estudio (edad, género, etnia, estatus socioeconómico) y características de medición (calidad). Resultados: Encontramos tamaños de efecto de pequeño a mediano para la memoria de trabajo (d = −0.49), la inhibición (d = −0.46) y la flexibilidad cognitiva (d = −0.44). Los análisis del moderador mostraron que, para la memoria de trabajo, cuando los estudios utilizaron mediciones de baja calidad, el tamaño del efecto fue significativamente más fuerte que cuando los estudios utilizaron mediciones de alta calidad. En comparación con los jóvenes expuestos a un solo trauma, los jóvenes expuestos a violencia /abus...