The relationship between adolescent personality and problem behaviour has been well established. However, relatively little attention has been given to the role of the social environment in the association between adolescent personality and problem behaviour. We tested the mediating and moderating role of the quality of the parent-adolescent relationship in the associations between adolescents' personality traits and problem behaviour. The sample consisted of 140 adolescents (11 to 18 years of age) and both their parents. Results supported a mediating role of the father/mother-adolescent relationship in the associations between Agreeableness, Emotional Stability, and Conscientiousness and externalizing problem behaviour. The father/mother-adolescent relationships did not mediate the associations between personality traits and internalizing problem behaviour. We also found support for a moderating role of the father/mother-adolescent relationships in the association between Emotional Stability and both externalizing and internalizing problem behaviours. Other moderated effects were specific for parent, personality trait and type of problem behaviour.

The screening efficiency of 2 methods to convert Child Behavior Checklist (CBCL) assessment data into Diagnostic and Statistical Manual of Mental Disorders (4th ed. [DSM-IV]; American Psychiatric Association, 1994) diagnoses was compared. The Machine-Aided Diagnosis (MAD) method converts CBCL input data directly into DSM-IV symptom criteria. The Achenbach System of Empirically Based Assessment (ASEBA) proceeds more indirectly and uses DSM-oriented scales. The power of the 2 methods to predict DSM-IV diagnoses obtained via administration of the structured Diagnostic Interview Schedule for Children (DISC-IV) interview in a clinical sample was examined. DISC-IV interviews and CBCL reports from parents of 44 children, 25 boys, and 19 girls, ages 6 to 17 were used. The results showed comparable levels of predictive power for the 2 methods. Both methods were able to predict DSM-IV diagnoses and therefore can be used for screening DSM-IV diagnoses.

Abstract. In family research, bidirectional influences between the family and the individual are usually analyzed in discrete time. Results from discrete time analysis, however, have been shown to be highly dependent on the length of the observation interval. Continuous time analysis using stochastic differential equations has been proposed to circumvent this problem. The present study examined the bidirectional influences between family relationships and adolescent problem behavior by means of both discrete- and continuous-time cross-lagged panel analysis. The effect of the length of the observation interval on the results from both procedures was investigated. Data were collected from a community sample of 288 Dutch families consisting of a father, a mother, and two of their adolescent children. Whereas results from discrete time analyses differed considerably when a 2-year instead of a 1-year interval between measurements was used, results from continuous time analysis appeared to be less affected by the length of the observation interval. Continuous time analysis revealed family relationship characteristics and levels of adolescent problem behavior to be highly stable over time. Relatively small cross-lagged effects were found between family relationships and adolescent problem behaviors.

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