Anne van Hoof

Developmental trajectories of adolescent anxiety disorder symptoms: a 5-year prospective community study.

OBJECTIVE This study prospectively examined the developmental trajectories of anxiety disorder symptoms in a large sample of adolescents from the general population. METHOD Two cohorts of early and middle adolescents (1,318 junior high and high school students) completed the Screen for Child Anxiety Related Emotional Disorders during 5 consecutive years. The Screen for Child Anxiety Related Emotional Disorders is a questionnaire that measures self-rated child and adolescent anxiety symptoms that map onto DSM-IV-TR anxiety disorders. At the first wave of measurement, the early and middle adolescent cohorts were an average of 12 and 16 years of age, respectively. Age and sex differences in the developmental trajectories of adolescent anxiety disorder symptoms over time were examined by means of latent growth modeling. RESULTS Over the course of 5 years, there was a slight decrease in the panic disorder, school anxiety, and separation anxiety disorder symptoms for all of the adolescents, with the exception of social phobia symptoms, which remained fairly stable over time. Adolescent girls showed a slight increase of generalized anxiety disorder symptoms over time, whereas these symptoms decreased among adolescent boys. CONCLUSIONS This study replicates and extends earlier findings on the developmental trajectories of anxiety symptoms during adolescence. By using individually focused, trajectory-based analyses rather than group score differences, this study extends earlier findings and advances our understanding of age and sex differences in the development of adolescent anxiety symptoms.

One Factor or Two Parallel Processes? Comorbidity and Development of Adolescent Anxiety and Depressive Disorder Symptoms.

BACKGROUND This study investigates whether anxiety and depressive disorder symptoms of adolescents from the general community are best described by a model that assumes they are indicative of one general factor or by a model that assumes they are two distinct disorders with parallel growth processes. Additional analyses were conducted to explore the comorbidity of adolescent anxiety and depressive disorder symptoms and the effects that adolescent anxiety and depressive disorder symptoms have on each others symptom severity growth. METHODS Two cohorts of early (N = 923; Age range 10-15 years; Mean age = 12.4, SD = .59; Girls = 49%) and middle adolescent (N = 390; Age range 16-20 years; Mean age = 16.7, SD = .80; Girls = 57%) boys and girls from the general community were prospectively studied annually for five years. These two adolescent cohorts were divided into five groups: one group at-risk for developing a specific anxiety disorder and four additional groups of healthy adolescents that differed in age and sex. Self-reported anxiety and depressive disorder symptoms were analyzed with latent growth modeling. RESULTS Comparison of the fit statistics of the two models clearly demonstrates the superiority of the distinct disorders with parallel growth processes model above the one factor model. It was also demonstrated that the initial symptom severity of either anxiety or depression is predictive of the development of the other, though in different ways for the at-risk and healthy adolescent groups. CONCLUSIONS The results of this study established that the development of anxiety and depressive disorder symptoms of adolescents from the general community occurs as two distinct disorders with parallel growth processes, each with their own unique growth characteristics.

Delinquency and Moral Reasoning in Adolescence and Young Adulthood.

This article presents a longitudinal-sequential analysis of the developmental and reciprocal relationships between self-reported delinquency and moral reasoning (as measured with the Dutch version of the short form of the Defining Issues Test). Between 1991 and 1997 a large sample of 846 Dutch adolescents and young adults (15–23 years in 1991) was measured three times with an interval period of 3 years. Moral reasoning scores increased with age both cross-sectionally and longitudinally, while delinquency scores dropped sharply, resulting in modest negative correlations between delinquency and moral reasoning. Structural equation modelling of the data delivered a satisfactory fit, suggesting statistical reciprocal effects between delinquency and moral reasoning for the total sample. A multigroup analysis for three different age cohorts revealed a consistent negative effect of previous delinquency on moral reasoning between the ages of 21 to 23 years. Between the ages of 24 to 26 years, however, delinquency scores were, in turn, negatively affected by previous moral reasoning. Although substantial gender differences in delinquency were reported, no such differences were obtained for either moral reasoning or its relationship with delinquency. The results are discussed in view of the need for a multidimensional process approach of the relation between moral judgment and delinquency.

The Search for the Structure of Identity Formation

The search for the structure of identity formation is a necessary undertaking for the comprehension of identity, identity changes, and identity development. This article attempts to show that the identification of structure and structural stages of identity implies a movement away from the identity status model.We support and clarify our claim by discussing how Krogers (this issue) definition of the concepts of structure and structural stages in relation to the identity status model leads to serious restrictions in these concepts. The concept of structural integration is introduced as an alternative interpretation and definition of the structure of identity formation. The definition and theoretical implications of the concept of structural integration are clarified and related to other recent conceptual and empirical analyses of identity theory and research.We then go on to show how the concept of structural integration can be studied in empirical research.