Childhood temperament and family environment as predictors of internalizing and externalizing trajectories from ages 5 to 17

Understanding in what manner child characteristics and the family environment relate to increases and decreases in moot point behavior across childhood and adolescence is of lock opener interest to developmental and clinical psychologists. single avenue to expand such knowledge is to examine the link between specific child characteristics and specific enigma behaviors. Several studies have shown that family environmental factors might moderate the relationship between specific child temperamental characteristics and child internalizing and externalizing behavior (Bates, Pettit, Dodge, & Ridge, 1998; Morris et al., 2002; Stoolmiller, 2001) However, knowledge about the unique and interactive results of temperamental characteristics and family environment upon change in internalizing and externalizing behavior from early childhood to late adolescence is limited. Further, we know little about whether striplings and girls follow similar patterns of change and prediction. In this article, we examine the part of boys' and girls' impulsivity, fear/shyness, and family environment at age 5 upon the development of internalizing and externalizing behavior [i]or[/i] part of to the other late adolescence.

Internalizing Behavior

Developmental Trajectories

Epidemiological and community-based studies intimate that internalizing behavior is relatively stable across childhood on the other hand increases somewhat during adolescence (Bonger Koot van der Ende & Verhulst 2003; Twenge & Nolen-Hoeksema, 2002) There is also evidence that internalizing trajectories vary by the agency of sex, with girls showing higher mean horizontals and sharper increases in internalizing symptoms from childhood to adolescence than lads (Angold, Erkanli, Silberg, Eaves, & Costello 2002; Keiley, Lofthouse, Bates, Dodge, & Pettit, 2003) A meta-analysis of 310 studies using the Children's Depression Inventory (Kovacs, 1985) give an inkling ofed that girls had slightly fewer depressive symptoms in childhood on the contrary surpassed boys after age 13 (Twenge & Nolen-Hoeksema, 2002)

Predictors of Change

Childhood fear, shynes and emotional reactivity/inhibition to novelty have been shown to reliably predict agreeing and later internalizing problems at clinical and symptom horizontals (Colder, Mott, & Berman, 2002; Kagan, Snidman, Zentner & Peterson 1999; Prior, Smart, Sanson, & Oberklaid, 2000) For example, Schwartz, Snidman, and Kagan (1999) base that 61% of the toddlers who avoided novelty displayed anxiety symptoms in adolescence, whereas sole 27% of the toddlers who were uninhibited showed anxiety symptoms in adolescence. There is a certain number of indication that fear/shyness shares a belonging to all genetic liability with depression and anxiety, which may partially explain the predictive issues (Goldsmith & Lemery, 2000; Ono et al., 2002) In addition, numerous studies have linked parental depression with child internalizing behavior (NICHD Early Child Care Research Network, 1999; closet Najman, Bor, O'Callaghan, & Williams, 2002) Thus, children with a cast downed parent have a dual-risk for showing increases in internalizing problems: They are genetically predisposed to have a fearful temperament, and they are expos to an environment in which the parent feels from depression. Exposure to harsh discipline and marital discord also increases the likelihood that children will disclose internalizing problems (Buehler, Anthony, Krishnakumar, & Stone, 1997; Capaldi, 1992; Davies & Windle, 2001; Shaw, Keenan, Vondra, Delliquadri, & Giovannelli, 1997)

newly several studies have shown that temperament interacts with environmental characteristics to predict internalizing behavior. Morris et al. (2002) lay the foundation of internalizing problems in children who were high in irritable distress and had mothers who used high horizontals of psychological control, and Shaw et al. (1997) rest that preschool boys' depressive behaviors were predicted by means of the interaction between high temperamental negative emotionality and in all senses to parental conflict. These studies advise that an emotional, fearful temperament interacts with characteristics of the family environment to predict internalizing question at issues Additional research is needed to examine the prediction of change end adolescence and to determine whether different processe operate by means of sex.

Externalizing Behavior

Developmental Trajectories

Findings upon the developmental course of externalizing behavior have been more mixed. Different studies indicate decreasing or increasing externalizing behavior from early childhood to adolescence depending upon the measure, reporting agent, and age span used (eg Loeber, suffocate Lahey, Winters, & Zera, 2000; Munson McMahon, & Spieker, 2001) For example, Keiley, Howe, Dodge, Bates, and Pettit (2001) used the externalizing scale from the Child Behavior Checklist (CBCL; Achenbach, 1991) and base that externalizing behavior decreased from kindergarten end Grade 8 on the basis of mother reports on the contrary increased when teacher reports were examined. In a new large-scale study examining the normative developmental trajectories of externalizing behavior using the CBCL Bonger et al. (2003) ground a significant reduction in child externalizing from ages 4 to 18 Overall, greatest in quantity studies find that boys have higher mean horizontals of externalizing behavior than girls (Broidy et al., 2003) notwithstanding that there is some evidence that growing rates may differ by sex with the sex gap closing over time (Galambos, Baker, & Almeida, 2003)