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71.
Finite mixture models are widely used in the analysis of growth trajectory data to discover subgroups of individuals exhibiting
similar patterns of behavior over time. In practice, trajectories are usually modeled as polynomials, which may fail to capture
important features of the longitudinal pattern. Focusing on dichotomous response measures, we propose a likelihood penalization
approach for parameter estimation that is able to capture a variety of nonlinear class mean trajectory shapes with higher
precision than maximum likelihood estimates. We show how parameter estimation and inference for whether trajectories are time-invariant,
linear time-varying, or nonlinear time-varying can be carried out for such models. To illustrate the method, we use simulation
studies and data from a long-term longitudinal study of children at high risk for substance abuse.
This work was supported in part by NIAAA grants R37 AA07065 and R01 AA12217 to RAZ. 相似文献
72.
Zucker DJ 《The journal of pastoral care & counseling : JPCC》2003,57(1):33-38
A rabbi/chaplain listens to a 21st century woman tell about some complexities encountered in the blended family dynamics. He reminds her that such stressful phenomena are not as new as many believe, illustrating his point by interpreting the biblical account of Sarah and Hagar, noting particularly that some of the same decisions and actions taken in ancient times may still provide authentic insights to current family dynamics today. 相似文献
73.
Thomas D. Steensma Kenneth J. Zucker Baudewijntje P. C. Kreukels Doug P. VanderLaan Hayley Wood Amanda Fuentes Peggy T. Cohen-Kettenis 《Journal of abnormal child psychology》2014,42(4):635-647
For gender dysphoric children and adolescents, the school environment may be challenging due to peer social ostracism and rejection. To date, information on the psychological functioning and the quality of peer relations in gender dysphoric children and adolescents has been studied via parental report, peer sociometric methods, and social interactions in laboratory play groups. The present study was the first cross-national investigation that assessed behavior and emotional problems and the quality of peer relations, both measured by the Teacher’s Report Form (TRF), in a sample of 728 gender dysphoric patients (554 children, 174 adolescents), who were referred to specialized gender identity clinics in the Netherlands and Canada. The gender dysphoric adolescents had significantly more teacher-reported emotional and behavioral problems than the gender dysphoric children. In both countries, gender dysphoric natal boys had poorer peer relations and more internalizing than externalizing problems compared to the gender dysphoric natal girls. Furthermore, there were significant between-clinic differences: both the children and the adolescents from Canada had more emotional and behavioral problems and a poorer quality of peer relations than the children and adolescents from the Netherlands. In conclusion, gender dysphoric children and adolescents showed the same pattern of emotional and behavioral problems in both countries. The extent of behavior and emotional problems was, however, higher in Canada than in the Netherlands, which appeared, in part, an effect of a poorer quality of peer relations. Per Bronfenbrenner’s (American Psychologist, 32, 513–531, 1977) ecological model of human development and well-being, we consider various interpretations of the cross-national, cross-clinic differences on TRF behavior problems at the level of the family, the peer group, and the culture at large. 相似文献
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von Keyserlingk Luise Rubach Charlott Lee Hye Rin Eccles Jacquelynne S. Heckhausen Jutta 《Motivation and emotion》2022,46(5):601-620
Motivation and Emotion - In college, students often encounter situations in which they struggle to meet their academic goals in difficult courses. We integrate the Motivational Theory of Life-Span... 相似文献
77.
Noosha Niv Nikki Frousakis Bonnie G. Zucker Shirley Glynn Lisa Dixon 《Journal of Family Therapy》2018,40(1):100-119
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79.
Anorexia nervosa and autism spectrum disorders: guided investigation of social cognitive endophenotypes 总被引:1,自引:0,他引:1
Death by suicide occurs in a disproportionate percentage of individuals with anorexia nervosa (AN), with a standardized mortality ratio indicating a 57-fold greater risk of death from suicide relative to an age-matched cohort. Longitudinal studies indicate impaired social functioning increases risk for fatal outcomes, while social impairment persists following recovery. Study of social cognition in AN may elucidate impaired processes that may influence therapeutic efficacy. Symptoms of autism spectrum disorders (ASD) are overrepresented in those who evidence a chronic course. Relative to that in AN, social information processing in ASD is well characterized and may inform systematic study in AN. This article (a) reviews impaired interpersonal processes in AN, (b) compares the phenotype of AN with that of ASD, (c) highlights deficits of social cognitive disturbance in ASD relative to AN, and (d) proposes a new framework to understand the interaction of individuals with AN with their social context. 相似文献
80.
This study examined trajectories of disruptive behavior problems from preschool to early adolescence in 302 boys from a community-recruited sample of high-risk families. Growth modeling showed that paternal alcoholism was associated with elevated levels of sons' disruptive behavior problems. Family conflict predicted more disruptive behaviors at school entry and a slower rate of decline in such problems. Parent antisocial personality disorder (ASPD) exacerbated the effects of high preschool levels of sons' undercontrol on level of disruptive behaviors at school entry; this effect became progressively stronger across time. Low levels of undercontrol protected sons of ASPD parents from experiencing heightened levels of disruptive behaviors both at school entry and increasingly as sons grew older. Implications for subsequent maladjustment are discussed. 相似文献