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1.
Cogn Emot ; : 1-15, 2024 Mar 25.
Artigo em Inglês | MEDLINE | ID: mdl-38525828

RESUMO

Emotion dysregulation (ED) is a vulnerability factor for affective disorders that may originate from deficits in cognitive control (CC). Although measures of ED are often designed to assess trait-like tendencies, the extent to which such measures capture a time-varying (TV) or state-like construct versus a time-invariant (TI) or trait-like personality characteristic is unclear. The link between the TV and TI components of ED and CC is also unclear. In a 6-wave, 5-month longitudinal study, community participants (n = 1281) completed the Difficulties in Emotion Regulation Scale (DERS-16), a commonly used measure of ED and measures of CC. A latent variable (trait-state-occasion) model showed that the proportion of TI factor variance (.80) was greater than the TV factor variance (.19). Although TV factor stability was significant, the coefficients were small in magnitude. Furthermore, regression weights for the ED TI factor (average ß = -.62) were significant and larger than those for the TV factor (average ß = -.10) in predicting latent CC at each of the six-time points. These findings suggest that ED, as assessed by the DERS-16, is largely TI and this TI component is more strongly linked to CC than the TV component.

2.
Dev Psychopathol ; 35(2): 809-822, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-35387703

RESUMO

Interactions with parents are integral in shaping the development of children's emotional processes. Important aspects of these interactions are overall (mean level) affective experience and affective synchrony (linkages between parent and child affect across time). Respectively, mean-level affect and affective synchrony reflect aspects of the content and structure of dyadic interactions. Most research on parent-child affect during dyadic interactions has focused on infancy and early childhood; adolescence, however, is a key period for both normative emotional development and the emergence of emotional disorders. We examined affect in early to mid-adolescents (N = 55, Mage = 12.27) and their parents using a video-mediated recall task of 10-min conflict-topic discussions. Using multilevel modeling, we found evidence of significant level-2 effects (mean affect) and level-1 effects (affective synchrony) for parents and their adolescents. Level-2 and level-1 associations were differentially moderated by adolescent age and adolescent internalizing and externalizing symptoms. More specifically, parent-adolescent synchrony was stronger when adolescents were older and had more internalizing problems. Further, more positive adolescent mean affect was associated with more positive parent affect (and vice versa), but only for dyads with low adolescent externalizing problems. Results underscore the importance of additional research examining parent-child affect in adolescence.


Assuntos
Emoções , Pais , Humanos , Adolescente , Pré-Escolar , Criança , Pais/psicologia , Relações Interpessoais , Transtornos do Humor , Controle Interno-Externo
3.
Artigo em Inglês | MEDLINE | ID: mdl-37227853

RESUMO

OBJECTIVE: Non-White sexual minorities experience disproportionate adverse childhood experiences (ACEs) and adulthood discrimination, as compared to their White or heterosexual counterparts. These stressors lead to increased psychological distress and worsened clinical outcomes, including suicidality. Minority stress theory posits that systemic marginalization, as experienced by minoritized individuals, leads to distress. Intersectionality theory suggests that marginalization compounds over time for individuals with intersectional minority identities. Yet, the mechanisms underlying the stress proliferation process for individuals with intersectional minority identities remain largely unexamined. METHOD: The present study used nationally representative data of sexual minority individuals (n = 1,518, Mage = 31 years, ethnoracial minority = 38.7%, female and gender minority = 50.6%) to investigate the relations among ethnoracial minoritization, ACEs, discrimination, distress, and self-injurious/suicidal outcomes. We proposed a novel integration of minority stress, intersectionality, and stress proliferation theories. Via longitudinal mediation, we tested models of stress persistence, stress accumulation, and stress sensitization. RESULTS: Our results confirmed disparities between White versus non-White sexual minorities on ACEs, discrimination experiences, and psychological distress. We found support for the stress persistence and the stress accumulation models, but not the stress sensitization model. Moreover, we found distress and discrimination were associated with future nonsuicidal self-injurious behaviors and suicidal outcomes, highlighting the deleterious consequences of intersectional minority stress proliferation. CONCLUSION: Our results support our proposed theory of intersectional minority stress proliferation where ethnoracial and sexual minoritization intersect and beget disproportionate ACEs, which in turn contribute to accumulation and persistence of psychological distress and discrimination experiences in adulthood. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

4.
J Youth Adolesc ; 52(3): 506-518, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36401708

RESUMO

Adolescent self-esteem and depression are influenced by important psychosocial factors such as parental relationships, yet it is unclear how these within-person relations present over time. The current study investigates the longitudinal relations between self-esteem, depressed affect, and parent-adolescent closeness during middle adolescence. Adolescents (n = 562; mean age = 14.73, SD = 0.82; 52% female; 72% White, 28% Racial Minority) were surveyed annually over four years (1988-1991). A random-intercept cross-lagged panel model was applied to disaggregate between- and within-person associations. Consistent with the scar model, adolescents experiencing heightened depressed affect were likely to have lower self-esteem. Furthermore, perceived mother-adolescent, but not father-adolescent, closeness positively predicted adolescent self-esteem. The results highlight the importance of considering interpersonal relationships and age in developmental models of self-esteem and depression.


Assuntos
Relações Interpessoais , Autoimagem , Humanos , Adolescente , Feminino , Masculino , Estudos Prospectivos , Estudos Longitudinais , Nonoxinol , Relações Pais-Filho
5.
Int J Eat Disord ; 55(12): 1721-1732, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36165444

RESUMO

OBJECTIVE: Comorbidity of disordered eating (DE) behaviors and nonsuicidal self-injury (NSSI) is linked to increased functional impairment. The present study identified subtypes of DE and NSSI comorbidity in a non-Western, low- and middle-income country where there has been particularly little research in this area. METHOD: Latent profile analyses (LPA) were conducted to identify patterns of subgroup comorbidity in self-reported DE behaviors and NSSI behaviors, in a sample of Vietnamese high-school students (N = 1451, 51% female). Parallel-process LPA was used to predict NSSI subgroup membership from DE subgroup membership. RESULTS: A seven-class LPA model was identified for DE: (1) Low frequencies of all DE behaviors; (2) Frequent levels of all DE behaviors; (3) Frequent fasting and purging behaviors; (4) Frequent binge eating only; (5) Moderate binge eating; (6) Moderate fasting and purging behaviors; (7) Exercise and fasting. A two-class (high versus low) model was identified for NSSI. Odds of membership in the high-NSSI class were significantly increased for all DE classes except the class characterized by moderate binge eating. Odds of belonging to the high-NSSI class were highest for those in DE classes involving purging behaviors. Males predominated in classes characterized by high behavior dysregulation. DISCUSSION: DE and NSSI represent important clinical concerns among Vietnamese youth in urban contexts, and males may show particular vulnerability for certain risk behaviors. The association of classes of DE behaviors to NSSI was particularly strong for classes that involved purging, highlighting the importance of this specific behavior for understanding comorbidity of DE and NSSI. PUBLIC SIGNIFICANCE: Disordered eating and nonsuicidal self-injury (NSSI; hurting oneself without intending to die) commonly co-occur. There has been less research on disordered eating and NSSI among individuals from non-Western or low/middle-income countries. We examined patterns of these behaviors in a school-based sample of Vietnamese adolescents. We found that patterns of disordered eating distinguished by purging showed particular links to NSSI, which could have implications for screening and treatment.


Assuntos
Transtornos da Alimentação e da Ingestão de Alimentos , Comportamento Autodestrutivo , Feminino , Humanos , Adolescente , Masculino , População do Sudeste Asiático , Comportamento Autodestrutivo/epidemiologia , Transtornos da Alimentação e da Ingestão de Alimentos/epidemiologia
6.
J Soc Clin Psychol ; 41(1): 30-53, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35785150

RESUMO

Introduction: The COVID-19 pandemic has led to major stressors, increases in internalizing symptomatology, and greater reliance on online interactions. We examined associations between social media use, online social support, pandemic-related stress, and internalizing symptoms, and tested the moderating role of social media use on the relation between stress and symptom change across time. Methods: Emerging adults aged 18-25 (N=200) self-reported pandemic-related stress, internalizing symptoms, social media use, and online social support in May 2020, then repeated measures of internalizing symptoms in August 2020. Results: Greater social media use was cross-sectionally associated with greater stress and anxiety symptoms. High social media use in conjunction with high interpersonal stress was predictive of increases in depression, whereas low online social support and high total stress was predictive of increases in anxiety. Discussion: Findings suggest that general social media usage and online social support are differentially related to internalizing symptom change among emerging adults.

7.
Int J Eat Disord ; 53(7): 1097-1107, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32406548

RESUMO

OBJECTIVE: Self-criticism has been proposed as a transdiagnostic predictor of disordered eating and nonsuicidal self-injury (NSSI). First, this study explored cross-sectional associations of multiple disordered eating behaviors, NSSI, and self-criticism. Second, it tested longitudinal relations of self-criticism with disordered eating and NSSI, adjusting for baseline levels of both behaviors. METHODS: In Sub-study 1, undergraduates (N = 251, 79.5% female, Mage = 19.1 years) completed self-report measures of disordered eating, NSSI, and self-criticism at baseline and after 8 weeks. In Sub-study 2, community-based young adults with histories of disordered eating, NSSI, or both (N = 517, 88.8% female, Mage = 24.7 years) completed measures of disordered eating, NSSI, and self-criticism at baseline and after 4 weeks. All measures were completed online. RESULTS: In Sub-study 1, both disordered eating and NSSI showed significant cross-sectional associations with self-criticism, and self-criticism was significantly related to binge eating, fasting, and NSSI at follow-up. In Sub-study 2, both behaviors again showed significant cross-sectional associations with self-criticism. Self-criticism showed significant longitudinal relations with fasting, purging, and excessive exercise. Longitudinal relations of self-criticism with NSSI varied across disordered eating behaviors. DISCUSSION: NSSI showed cross-sectional associations with a range of disordered eating behaviors. Self-criticism reflects a common correlate of both disordered eating and NSSI. Evidence supported transdiagnostic longitudinal impact of self-criticism across multiple forms of disordered eating but provided more limited support for impacts on NSSI.


Assuntos
Transtornos da Alimentação e da Ingestão de Alimentos/psicologia , Autoavaliação (Psicologia) , Comportamento Autodestrutivo/psicologia , Adulto , Estudos Transversais , Feminino , Humanos , Estudos Longitudinais , Masculino , Autorrelato , Adulto Jovem
8.
Dev Psychopathol ; 31(4): 1527-1540, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-30837008

RESUMO

Prior theory and research have linked negative appraisals (NA), emotion reactivity (ER), and cognitive reactivity (CR) to depression; however, few studies have examined whether even two of these constructs simultaneously, but none have done so in child or adolescent populations. A total of 571 youths (ages 9-13) completed a novel procedure in which all three constructs were assessed in response to the same personally relevant, hypothetical, peer victimization events. Multilevel modeling enabled the extraction of dynamic, within-person, latent-variable measures of NA, ER, and CR. All three constructs were related to children's depressive symptoms in ways that were commensurate with most (but not all) theoretical frameworks. Gender and age differences also emerged. Support for an NA-predicts-ER-predicts-CR model suggests ways that these constructs can be integrated into a more complete, transtheoretical understanding of the cognitive-emotional substrate of depression in children.


Assuntos
Cognição/fisiologia , Depressão/psicologia , Emoções/fisiologia , Grupo Associado , Adolescente , Criança , Vítimas de Crime/psicologia , Feminino , Humanos , Masculino
9.
J Youth Adolesc ; 48(4): 731-743, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30298225

RESUMO

Girls are more likely to engage in rumination, associated with the development of mental health problems, as well as report higher levels of friendship quality, hypothesized to protect against these disorders. The current study examined whether co-rumination may drive simultaneous increases in rumination and changes in friendship quality among adolescents. The project included 360 participants (43% boys), ages 9.8 to 15.8 years, and analyses revealed that co-rumination mediated the link between female sex and both rumination and negative friendship quality. There was also a bidirectional relation between co-rumination and positive friendship quality. These findings highlight several pathways by which co-rumination mediates the relation between sex and both maladaptive (i.e. rumination, negative friendship quality) and adaptive (i.e. positive friendship quality) outcomes.


Assuntos
Comportamento do Adolescente/fisiologia , Amigos/psicologia , Relações Interpessoais , Adolescente , Criança , Feminino , Humanos , Masculino , Grupo Associado , Psicometria/métodos , Ruminação Cognitiva , Fatores Sexuais , Inquéritos e Questionários
10.
J Clin Child Adolesc Psychol ; 47(6): 863-873, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30433818

RESUMO

Clinical psychologists studying child and adolescent populations commonly analyze hierarchically structured data via multilevel modeling (MLM). In clinical child and adolescent psychology, and in psychology more broadly, increasing emphasis is being placed on the reporting of effect size, such as R-squared (R2) measures of explained variance. In MLM, however, the literature on R2 had, until recently, suffered from several shortcomings: (a) the relations among existing measures were unknown, (b) methods for quantifying some types of explained variance were unavailable, (c) which (if any) measures should be used for model comparison was unclear, (d) most measures did not generalize to models with more than two levels, and (e) software to compute measures was unavailable. The purpose of this article is to summarize recent methodological developments that resolved these issues and encourage the use of MLM R2 in practice. We provide a nontechnical discussion of how the issues have been resolved and demonstrate how the new measures and methods can be implemented, highlighting their utility with an empirical example. We first consider a two-level MLM for a single hypothesized model in which we examine emotional response to social situations as a predictor of maladaptive self-cognitions, demonstrating the various ways we can quantify explained variance. We then discuss and demonstrate the use of R2 for model comparison, and discuss the extension to models with more than two levels. Last, we discuss new free software that researchers can use to compute measures and produce associated graphics.


Assuntos
Pesquisa Biomédica/métodos , Modelos Psicológicos , Análise Multinível/métodos , Psicologia do Adolescente/métodos , Adolescente , Pesquisa Biomédica/estatística & dados numéricos , Criança , Humanos , Psicologia do Adolescente/estatística & dados numéricos
11.
J Adolesc ; 60: 94-103, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28800438

RESUMO

We examined the relation of interpersonal and media exposure to nonsuicidal self-injury (NSSI) among 340 university students in the southeastern United States (73.5% female, M age = 19.38 years, SD = 1.15). We also assessed interactions and main effects of each exposure and emotion dysregulation in relation to NSSI, testing the social learning hypothesis of NSSI. Most participants endorsed medium to high levels of exposure to NSSI via media sources. More than one-third of participants were somewhat or very familiar with someone who engaged in NSSI. Almost half reported occasional or frequent conversations about NSSI. Both exposure forms were significantly related to NSSI history. However, hurdle regression analyses revealed that interpersonal exposure and emotion dysregulation, but not media exposure, were significantly associated with NSSI history and frequency. We did not find evidence for an emotion dysregulation-by-interpersonal-exposure interaction. We discuss implications for theoretical models of NSSI, limitations, and future directions.


Assuntos
Sintomas Afetivos/psicologia , Relações Interpessoais , Comportamento Autodestrutivo/psicologia , Aprendizado Social , Adolescente , Estudos Transversais , Feminino , Humanos , Masculino , Meios de Comunicação de Massa/estatística & dados numéricos , Análise de Regressão , Autorrelato , Sudeste dos Estados Unidos , Adulto Jovem
12.
J Clin Child Adolesc Psychol ; 45(3): 335-47, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-25602594

RESUMO

Framed by a previously established conceptual model of youths' posttraumatic stress (PTS) responses following a disaster, the current longitudinal study examined the relation of predisaster child characteristics (age, gender, depressive symptoms, ruminative coping), predisaster environmental characteristics (negative life events and supportive and negative friendship interactions), and level of disaster exposure to youths' PTS symptoms in the wake of a natural disaster. Prior to the 2010 Nashville, Tennessee, flood, 239 predominantly Caucasian youth from four elementary and middle schools (ages = 10-15, 56% girls) completed measures of depressive symptoms, rumination, negative life events, and social support in the form of both supportive and negative friendship interactions. Approximately 10 days after returning to school, 125 completed measures of disaster exposure and postflood PTS symptoms. Bivariate correlations revealed that disaster-related PTS symptoms were unrelated to age, gender, or predisaster supportive friendship interactions and significantly positively related to level of disaster exposure and predisaster levels of negative life events, depressive symptoms, rumination, and negative friendship interactions. After controlling for level of disaster exposure and other predisaster child and environmental characteristics, depressive symptoms and negative friendship interactions predicted postdisaster PTS symptoms. The effect of child's flood-related experiences on PTS symptoms was not moderated by any of the preexisting child characteristics or environmental indicators. Faced with limited resources after a natural disaster, school counselors and other health professionals should focus special attention on youths who experienced high levels of disaster-related losses and whose predisaster emotional and interpersonal lives were problematic.


Assuntos
Adaptação Psicológica , Depressão/psicologia , Desastres , Acontecimentos que Mudam a Vida , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Adolescente , Criança , Feminino , Inundações , Humanos , Estudos Longitudinais , Masculino , Valor Preditivo dos Testes , Escalas de Graduação Psiquiátrica , Apoio Social , Transtornos de Estresse Pós-Traumáticos/psicologia , Inquéritos e Questionários , Tennessee , População Branca
13.
J Clin Child Adolesc Psychol ; 45(5): 668-680, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-25751612

RESUMO

The current study examined peer victimization and harsh parenting as longitudinal predictors of broadband and narrowband cognitions associated with the etiology of depression in children and adolescents. The sample consisted of 214 elementary and middle school students. At the start of the study, their average age was 12.2 years (SD = 1.0). The sex ratio was 112 girls to 102 boys. The sample was ethnically diverse (58.9% Caucasian, 34.1% African American, 10.7% Hispanic, 3.3% Asian, and 5.2% other). Children and their parents completed measures of peer victimization and harsh parenting. At two waves 1 year apart, children also completed questionnaire measures of negative and positive broadband cognitive style (e.g., personal failure, global self-worth) and narrowband self-perceptions (e.g., perceived social threat, social acceptance). Every Wave 2 cognitive variable was predicted by peer victimization or harsh parenting or both, even after controlling for a Wave 1 measure of the same cognitive variable. Peer victimization more consistently predicted narrowband social/interpersonal cognitions, whereas harsh parenting more consistently predicted broadband positive and negative cognitions. Furthermore, controlling for positive and negative self-cognitions eliminated a statistically significant effect of harsh parenting and peer victimization on depressive symptoms. Support emerged for the social learning of negative self-cognitions. Support also emerged for negative self-cognitions as a mediator of depressive symptoms. Implications for theory and practice are discussed.


Assuntos
Transtornos Cognitivos/psicologia , Vítimas de Crime/psicologia , Depressão/psicologia , Poder Familiar/psicologia , Grupo Associado , Adolescente , Bullying , Criança , Cognição , Transtornos Cognitivos/diagnóstico , Depressão/diagnóstico , Suscetibilidade a Doenças/diagnóstico , Suscetibilidade a Doenças/psicologia , Feminino , Humanos , Estudos Longitudinais , Masculino , Pais/psicologia , Valor Preditivo dos Testes , Distribuição Aleatória , Autoimagem , Comportamento Social , Inquéritos e Questionários
14.
Pers Individ Dif ; 102: 123-132, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31507307

RESUMO

Emotion reactivity and emotion regulation are salient constructs in theories of emotion and emotion disorders; however, little is known about the convergent and discriminant validity of instruments used to measure them. The current paper examines the validity of four emotion-regulation and three emotion-reactivity instruments (with a total of 27 subscales) across three independent samples of university students (total N = 715). Eight subscales from a coping instrument were also examined. Confirmatory factor analysis failed to show the expected patterns of convergent and discriminant validity; however, exploratory factor analysis revealed three different factors, reflecting out-of-control negative emotion, emotion awareness and expression, and cognitive strategies for emotion regulation. Results have implications for both basic emotions research and clinical science.

15.
Am J Med Genet A ; 167A(9): 1962-71, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25920614

RESUMO

Turner syndrome, a congenital condition that affects ∼1/2,500 births, results from absence or structural alteration of the second sex chromosome. There has been substantial effort by numerous clinical and genetic research groups to delineate the clinical, pathophysiological, cytogenetic, and molecular features of this multisystem condition. Questions about the molecular-genetic and biological basis of many of the clinical features remain unanswered, and health care providers and families seek improved care for affected individuals. The inaugural "Turner Resource Network (TRN) Symposium" brought together individuals with Turner syndrome and their families, advocacy group leaders, clinicians, basic scientists, physician-scientists, trainees and other stakeholders with interest in the well-being of individuals and families living with the condition. The goal of this symposium was to establish a structure for a TRN that will be a patient-powered organization involving those living with Turner syndrome, their families, clinicians, and scientists. The TRN will identify basic and clinical questions that might be answered with registries, clinical trials, or through bench research to promote and advocate for best practices and improved care for individuals with Turner syndrome. The symposium concluded with the consensus that two rationales justify the creation of a TRN: inadequate attention has been paid to the health and psychosocial issues facing girls and women who live with Turner syndrome; investigations into the susceptibility to common disorders such as cardiovascular or autoimmune diseases caused by sex chromosome deficiencies will increase understanding of disease susceptibilities in the general population.


Assuntos
Síndrome de Turner/genética , Atenção à Saúde/métodos , Feminino , Pesquisa em Genética , Pesquisa sobre Serviços de Saúde/métodos , Humanos , Sistema de Registros , Cromossomos Sexuais/genética
16.
Annu Rev Clin Psychol ; 11: 71-98, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25062476

RESUMO

We present a revision of latent state-trait (LST-R) theory with new definitions of states and traits. This theory applies whenever we study the consistency of behavior, its variability, and its change over time. States and traits are defined in terms of probability theory. This allows for a seamless transition from theory to statistical modeling of empirical data. LST-R theory not only gives insights into the nature of latent variables but it also takes into account four fundamental facts: Observations are fallible, they never happen in a situational vacuum, they are always made using a specific method of observations, and there is no person without a past. Although the first fact necessitates considering measurement error, the second fact requires allowances for situational fluctuations. The third fact implies that, in the first place, states and traits are method specific. Furthermore, compared to the previous version of LST theory (see, e.g., Steyer et al. 1992 , 1999 ), our revision is based on the notion of a person-at-time-t. The new definitions in LST-R theory have far-reaching implications that not only concern the properties of states, traits, and the associated concepts of measurement errors and state residuals, but also are related to the analysis of states and traits in longitudinal observational and intervention studies.


Assuntos
Comportamento , Teoria Psicológica , Humanos , Modelos Psicológicos , Testes Psicológicos
17.
Behav Res Methods ; 47(1): 172-203, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24652650

RESUMO

Researchers analyzing longitudinal data often want to find out whether the process they study is characterized by (1) short-term state variability, (2) long-term trait change, or (3) a combination of state variability and trait change. Classical latent state-trait (LST) models are designed to measure reversible state variability around a fixed set-point or trait, whereas latent growth curve (LGC) models focus on long-lasting and often irreversible trait changes. In the present article, we contrast LST and LGC models from the perspective of measurement invariance testing. We show that establishing a pure state-variability process requires (1) the inclusion of a mean structure and (2) establishing strong factorial invariance in LST analyses. Analytical derivations and simulations demonstrate that LST models with noninvariant parameters can mask the fact that a trait-change or hybrid process has generated the data. Furthermore, the inappropriate application of LST models to trait change or hybrid data can lead to bias in the estimates of consistency and occasion specificity, which are typically of key interest in LST analyses. Four tips for the proper application of LST models are provided.


Assuntos
Viés , Pesquisa Biomédica/métodos , Metodologias Computacionais , Tempo , Humanos , Modelos Estatísticos , Análise Multivariada , Reprodutibilidade dos Testes , Projetos de Pesquisa
18.
Dev Psychopathol ; 26(4 Pt 1): 1035-48, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24969338

RESUMO

The link between the experience of peer victimization (PV) and future psychological maladjustment has been consistently documented; however, little is known about intermediary cognitive processes that underlie this relation or how these processes vary across childhood. The present study examined the prospective relations between physical and relational PV and the development of negative and positive automatic thoughts and self-cognitions. Self-reports of cognitions and peer nomination measures of victimization were obtained from 1,242 children and young adolescents (Grades 3 through 6) in a two-wave longitudinal study. The results revealed that PV predicted significant increases in negative views of the self, world, and future and decreases in self-perceived competence for girls under 11 years of age, with the effect being stronger for younger girls. PV was not significantly associated with changes in positive or negative self-cognitions for older girls or for boys of any age. These findings support the hypothesis that PV may be linked to future psychopathology through its influence on self-cognitions, but only for girls.


Assuntos
Vítimas de Crime/psicologia , Grupo Associado , Autoimagem , Adolescente , Fatores Etários , Criança , Cognição , Feminino , Humanos , Estudos Longitudinais , Masculino , Testes Psicológicos , Fatores Sexuais , Inquéritos e Questionários
19.
Multivariate Behav Res ; 49(2): 93-118, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-26741171

RESUMO

Study designs involving clustering in some study arms, but not all study arms, are common in clinical treatment-outcome and educational settings. For instance, in a treatment arm, persons may be nested in therapy groups, whereas in a control arm there are no groups. Methodological approaches for handling such partially nested designs have recently been developed in a multilevel modeling framework (MLM-PN) and have proved very useful. We introduce two alternative structural equation modeling (SEM) approaches for analyzing partially nested data: a multivariate single-level SEM (SSEM-PN) and a multiple-arm multilevel SEM (MSEM-PN). We show how SSEM-PN and MSEM-PN can produce results equivalent to existing MLM-PNs and can be extended to flexibly accommodate several modeling features that are difficult or impossible to handle in MLM-PNs. For instance, using an SSEM-PN or MSEM-PN, it is possible to specify complex structural models involving cluster-level outcomes, obtain absolute model fit, decompose person-level predictor effects in the treatment arm using latent cluster means, and include traditional factors as predictors/outcomes. Importantly, implementation of such features for partially nested designs differs from that for fully nested designs. An empirical example involving a partially nested depression intervention combines several of these features in an analysis of interest for treatment-outcome studies.

20.
Br J Psychol ; 2024 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-38926928

RESUMO

The latent state-trait theory posits that a psychological construct may reflect stable influences specific to a person (i.e., trait), ephemeral influences from situations (i.e., state), and interactions between them (i.e., state-trait interactions). Researchers conventionally apply mixture modelling to explore heterogeneity in variables by identifying homogenous classes with respect to the measured variable, yet rarely distinguishing between person- and situation-specific classes. The current study introduces novel categorical latent state-trait models to identify subgroups in states and traits, quantifying the effects of person-specific classes, situation-specific classes, and person-situation interactions. The proposed models are applied to an empirical dataset. We discuss statistical inference, effect size measures, and model visualization for the proposed models. Based on realistic parameter values from the empirical dataset, preliminary simulation studies were conducted to investigate models' performances. Bayesian estimation in the proposed models allows flexible testing of a wide range of hypotheses related to state, trait, and interaction effects. We discuss limitations and future directions.

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