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1.
J Sex Res ; 60(8): 1181-1192, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-35041569

RESUMO

Friends with benefits relationships (FWBRs) are a common form of relationship for college students that combine aspects of friendship with sex, yet little is known about commitment in these relationships and whether they are more similar to casual relationships or to romantic relationships. We investigated associations between investment, alternatives, and satisfaction, with commitment (per the Investment Model) in college students' FWBRs and examined how associations between variables differ by participant and partner gender. Primary analyses were conducted with male-female FWBRs (n = 252). Male-male (n = 19) and female-female (n = 4) FWBRs are described. Investment was the strongest predictor of commitment for participants in male-female FWBRs, with commitment higher among women than men when investment was high. Additionally, participants' perceptions that their own and their partners' commitment was asymmetrical, as well as reports of extra-dyadic sexual activity (i.e., sex outside the FWBR) correlated with lower commitment to the FWBR. Overall, results suggest that FWBRs can be distinguished not only from other casual sexual relationships such as hookups but can also be differentiated from romantic relationships. Future research and intervention work should measure commitment and investment to predict how these relationships can persist, as well as transition, over time.


Assuntos
Amigos , Parceiros Sexuais , Humanos , Feminino , Masculino , Relações Interpessoais , Comportamento Sexual , Estudantes
2.
J Ethn Subst Abuse ; 22(4): 720-740, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-34904936

RESUMO

Scholars suggest traditional feminine gender roles (TFGRs) influence alcohol use among U.S. Latinas, but relevant literature is limited. This two-wave study examined how multi-dimensional internal (i.e., beliefs) and external (i.e., practices) TFGR processes related to drinking among college-bound Latina emerging adults across time. TFGRs characterized by virtue predicted less alcohol engagement, while some TFGR dimensions (e.g., subordinate) predicted more. TFGR practices more strongly predicted cross-sectional alcohol outcomes than TFGR beliefs, although some TFGR beliefs predicted later drinking. These findings highlight the utility of assessing multiple TFGR dimensions and domains to better understand the link between TFGRs and drinking among Latinas.


Assuntos
Consumo de Bebidas Alcoólicas , Papel de Gênero , Hispânico ou Latino , Adulto , Humanos , Consumo de Bebidas Alcoólicas/epidemiologia , Consumo de Bebidas Alcoólicas/etnologia , Consumo de Bebidas Alcoólicas/psicologia , Estudos Transversais , Papel de Gênero/etnologia , Hispânico ou Latino/psicologia , Estudos Prospectivos , Feminilidade , Estados Unidos/epidemiologia , Conhecimentos, Atitudes e Prática em Saúde/etnologia
3.
Soc Psychiatry Psychiatr Epidemiol ; 58(1): 177-181, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36114856

RESUMO

Using a four-wave longitudinal design, three competing hypotheses (i.e., social selection, social causation, and reciprocal causation) were tested pertaining to the relation between social functioning and several indices of behavioral health [i.e., post-traumatic stress symptoms (PTSS), distress, and alcohol-related problems] among military veterans exposed to trauma. Across two latent growth curve analyses, data largely supported longitudinal links between improved social functioning and positive behavioral health, often indicating that the improvements in social functioning frequently precede improvements in behavioral health. Overall, findings underscore the merit of directly targeting social functioning as part of mental health treatment among trauma-exposed individuals.


Assuntos
Transtornos de Estresse Pós-Traumáticos , Veteranos , Humanos , Veteranos/psicologia , Interação Social , Transtornos de Estresse Pós-Traumáticos/psicologia , Ajustamento Social , Psicoterapia
4.
Violence Against Women ; 25(7): 817-838, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30355248

RESUMO

Friends and family members' reactions to intimate partner violence (IPV) disclosure play an important role in social support because disclosure often precedes requests for support. Perceptions of social reactions to IPV disclosure are likely to vary by context. Yet, research is limited on the role of ethnicity and severity of physical violence in perceptions of social reactions. We examined perceptions of social reactions to IPV disclosure using data from Wave 6 interviews for Project HOW: Health Outcomes of Women. Participants ( N = 201) were asked proportionately how many friends and family reacted positively and negatively to IPV disclosure. MANOVAs revealed significant differences in perceptions of positive social reactions by ethnicity and severity.


Assuntos
Violência por Parceiro Íntimo/psicologia , Comportamento Social , Revelação da Verdade , Adulto , Distribuição de Qui-Quadrado , Etnicidade/psicologia , Etnicidade/estatística & dados numéricos , Feminino , Humanos , Violência por Parceiro Íntimo/estatística & dados numéricos , Avaliação de Resultados em Cuidados de Saúde , Pobreza/psicologia , Pobreza/estatística & dados numéricos , Apoio Social
5.
Child Abuse Negl ; 86: 123-135, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30286306

RESUMO

Teen dating violence is a pervasive issue in adolescence and has been linked to maladjustment (Temple, Shorey, Fite et al., 2013). Physical dating violence is a particularly significant problem with one in five adolescents reporting experiencing physical teen dating violence (TDV; Wincentak et al., 2017). Acceptance of violence has been suggested to increase the risk of TDV; however, most studies to date have been cross-sectional. The purpose of the current study is to examine patterns of acceptance of dating violence and TDV victimization across time. Participants were ethnically diverse teenagers (N = 1042; ages 13-18) who were followed over a four-year period. Multivariate latent growth curve modeling techniques were used to determine trajectories of physical TDV victimization and attitudes accepting of dating violence. Results showed two trajectories for physical TDV victimization, linear and quadratic, and two trajectories for acceptance of dating violence, non-linear and quadratic. Parallel models investigating the interplay between TDV victimization and acceptance demonstrated two possible trends; however, we did not find any evidence for a longitudinal relationship between the two variables, suggesting that change in acceptance was not related to change in physical TDV victimization. Instead, our results suggest a significant amount of heterogeneity in these trajectories. These findings suggest studies are still needed to further explore longitudinal patterns of TDV to better understand how to reduce the risk of teen dating violence.


Assuntos
Atitude Frente a Saúde , Vítimas de Crime/psicologia , Violência por Parceiro Íntimo/psicologia , Adolescente , Bullying/psicologia , Estudos Transversais , Feminino , Humanos , Relações Interpessoais , Estudos Longitudinais , Masculino , Abuso Físico/psicologia , Adulto Jovem
6.
J Youth Adolesc ; 46(4): 854-866, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-27709405

RESUMO

Although multiple forms (i.e., physical, threatening, psychological, sexual, and relational abuse) and patterns (i.e., perpetration and victimization) of violence can co-occur, most existing research examines these experiences individually. Thus, the purpose of this study is to investigate: (1) homogenous subgroups based on victimization and perpetration of multiple forms of teen dating violence; (2) predictors of membership in these subgroups; and (3) mental health consequences associated with membership in each subgroup. Nine hundred eighteen adolescents in the 9th or 10th grade at seven public high schools in Texas participated in the survey (56 % female, White: 30 %, Hispanic: 32 %, African American: 29 %, others: 9 %). A three-step latent class analysis was employed. Five latent teen dating violence classes were identified: (1) nonviolence; (2) emotional/verbal abuse; (3) forced sexual contact; (4) psychological + physical violence; and (5) psychological abuse. Females, African Americans, and youth who had higher acceptance of couple violence scores and whose parents had less education were more likely to members of dating violence classes compared with the nonviolence class. Adolescents who experienced multiple types of dating violence reported greater mental health concerns. Prevention programs may benefit by identifying the homogenous subgroups of teen dating violence and targeting adolescent teen dating violence accordingly.


Assuntos
Comportamento do Adolescente/psicologia , Agressão/psicologia , Violência por Parceiro Íntimo/psicologia , Saúde Mental , Adolescente , Bullying , Vítimas de Crime/psicologia , Etnicidade/psicologia , Feminino , Humanos , Relações Interpessoais , Masculino , Comportamento Sexual/estatística & dados numéricos , Inquéritos e Questionários , Texas
7.
Violence Against Women ; 22(5): 625-46, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26452379

RESUMO

We examined the association between witnessing interparental violence, attitudes about dating violence, and physical and psychological teen dating violence (TDV) victimization. Participants were 918 teens with dating experience. Witnessing interparental violence and acceptance of dating violence were significant predictors of TDV victimization. Acceptance of dating violence was also a partial mediator between witnessing interparental violence and TDV victimization. Witnessing mother-to-father violence and acceptance of female-perpetrated violence were the most consistent predictors. TDV programs aiming to prevent victimization could benefit from targeting youth exposed to father-to-mother and mother-to-father violence, targeting attitudes about violence, and tailoring interventions to gender-specific risk factors.


Assuntos
Comportamento do Adolescente/psicologia , Atitude , Violência Doméstica/psicologia , Conflito Familiar/psicologia , Violência por Parceiro Íntimo/psicologia , Adolescente , Adulto , Feminino , Humanos , Masculino , Relações Pais-Filho , Estatística como Assunto
8.
J Gen Psychol ; 142(2): 71-89, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25832738

RESUMO

Likert-type scales are commonly used when assessing attitudes, personality characteristics, and other psychological variables. This study examined the effect of varying the number of response options on the same set of 28 attitudinal items. Participants answered items using either a 4-point scale (forced choice), a 5-point scale that included a "neither" mid-point, or a 4-point scale with an option of "no opinion" presented after the item. The questionnaire also included an item asking participants what they believe the midpoint in a scale indicated. As predicted, participants' interpretations of the midpoint varied widely with the most common responses being: "no opinion," "don't care," "unsure," "neutral," "equal/both," and "neither." The quantitative results showed that participants' levels of item endorsement varied based on the response options offered. For example, "neither" was chosen more often than "no opinion" on all of the items.


Assuntos
Inquéritos e Questionários , Adolescente , Feminino , Humanos , Masculino , Psicometria , Adulto Jovem
9.
Behav Res Ther ; 49(3): 194-201, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21295768

RESUMO

Ehlers and Clark (2000) developed a cognitive model of posttraumatic stress disorder (PTSD) symptom maintenance which implicated the role of posttraumatic cognitions and aspects of the trauma memory in maintaining symptoms via an increased sense of current threat. The aim of the current study was to empirically test a variant of this model using path analysis. Participants in the current study were 514 undergraduates at a midwestern university who reported experiencing at least one traumatic event. Path analyses examined various models of the possible relationships between one's posttraumatic cognitions and the centrality of the traumatic event to the sense of self (considered an aspect of memory integration) in predicting current level of PTSD symptoms. Results indicate that both event centrality and posttraumatic cognitions are unique and independent predictors of current symptom level. Overall, the results of this study support aspects of Ehlers and Clark's cognitive model of PTSD; cognitive appraisals of the self and centrality of the event were highly related to levels of distress. However, the current study suggests that overly integrated trauma memories may lead to greater distress and not poorly integrated ones as suggested by Ehlers and Clark.


Assuntos
Modelos Psicológicos , Transtornos de Estresse Pós-Traumáticos/psicologia , Adulto , Feminino , Humanos , Masculino , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Inquéritos e Questionários
10.
Behav Res Ther ; 2010 Nov 02.
Artigo em Inglês | MEDLINE | ID: mdl-21129730

RESUMO

This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.

11.
Partner Abuse ; 1(4): 379-398, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-21755020

RESUMO

Intimate partner violence (IPV) is associated with psychological distress; however, differences in the impact of unidirectional IPV, typically male-dominated, and bidirectional IPV have not been examined. To address this gap in the literature, we compared the effects of various IPV patterns on women's reports of dissociation, post-traumatic stress disorder, and stress in 6 interviews over eight years. We also examined whether differences by IPV pattern existed in women's mental health upon leaving a violent relationship. The 489 low-income women completing all interviews were African American (40%), Euro-American (30%), and Mexican American (30%), over half of whom (58%) were no longer with Wave 1 partners by Wave 6. In general, worse mental health was associated with relationship termination and bidirectional violence.

12.
J Homosex ; 56(1): 14-30, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19197641

RESUMO

Currently, the literature related to sexual orientation is ambiguous with regard to the relationship of sexual orientation, sexual identity, attraction, and intimacy. In order to explore the relationships of self-identified categorical sexual identity (which is the most popular method of sexual orientation assessment) with attraction and intimacy, it is imperative that researchers have access to a reliable and valid measure of the latter. The present study proposes a model for conceptualizing attraction and intimacy, termed gendered sexuality, and examines the factor structure of a measure designed to assess the construct. Results suggest that four factors adequately accounted for the variance in gendered sexuality in a large sample of young adults. These factors assess attraction to females, attraction to males, intimacy with females, and intimacy with males. Exploratory analyses provided preliminary evidence of potential construct validity and suggested that discrepancies between desired and available behavior predict dissatisfaction in interpersonal role as measured by the Outcome Questionnaire 45.2.


Assuntos
Identidade de Gênero , Homossexualidade/psicologia , Modelos Psicológicos , Comportamento Sexual/psicologia , Feminino , Humanos , Masculino , Satisfação Pessoal , Testes Psicológicos , Inquéritos e Questionários , Adulto Jovem
13.
Law Hum Behav ; 33(5): 405-18, 2009 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-19115099

RESUMO

This study examined the extent to which harassment experiences correlate with posttraumatic stress disorder (PTSD) symptoms, and whether diagnosable PTSD on the basis of sexual harassment occurs after accounting for prior PTSD, prior sexual abuse, and prior psychological dysfunction. The sample consisted of a two-wave panel of 445 women who had received a domestic violence protective order from a Kentucky court. Hierarchical linear and logistic analyses confirmed that sexual harassment experiences were significantly correlated with PTSD symptoms after controlling for an extensive set of trauma variables measured in both the baseline and follow up interviews. Our findings lend further evidence that claims of PTSD from sexual harassment may be credible even if claimants have been victims of other forms of trauma.


Assuntos
Compensação e Reparação/legislação & jurisprudência , Assédio Sexual/economia , Assédio Sexual/legislação & jurisprudência , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Transtornos de Estresse Pós-Traumáticos/economia , Adulto , Criança , Maus-Tratos Infantis/legislação & jurisprudência , Maus-Tratos Infantis/psicologia , Abuso Sexual na Infância/legislação & jurisprudência , Abuso Sexual na Infância/psicologia , Direitos Civis/legislação & jurisprudência , Definição da Elegibilidade/legislação & jurisprudência , Prova Pericial/legislação & jurisprudência , Feminino , Humanos , Recidiva , Assédio Sexual/psicologia , Maus-Tratos Conjugais/legislação & jurisprudência , Maus-Tratos Conjugais/psicologia
14.
Addict Behav ; 33(9): 1244-8, 2008 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-18571335

RESUMO

Research has consistently demonstrated a strong link between substance misuse and the perpetration of intimate partner violence (IPV). However, studies examining whether substance misuse is associated with IPV victimization have been mixed. Using data collected from 835 low-income ethnically diverse community women, this study extends previous research by utilizing a longitudinal design, considering men's and women's alcohol use, and examining multiple forms of abuse. Despite overall decreases in drinking and abuse, the frequency of male partners' drinking continued to be associated with their perpetration of threats, violence, and sexual aggression. Women's alcohol use frequency was associated with sustaining physical violence, but not threats of violence or sexual aggression.


Assuntos
Consumo de Bebidas Alcoólicas/efeitos adversos , Transtornos Relacionados ao Uso de Álcool/psicologia , Maus-Tratos Conjugais/estatística & dados numéricos , Adulto , Consumo de Bebidas Alcoólicas/etnologia , Transtornos Relacionados ao Uso de Álcool/etnologia , Feminino , Humanos , Estudos Longitudinais , Masculino , Fatores de Risco , Fatores Sexuais , Maus-Tratos Conjugais/etnologia
15.
J Interpers Violence ; 22(8): 1043-65, 2007 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-17709809

RESUMO

Drawing from past research on women's motives for intimate partner violence (IPV) perpetration, correlates of women's perpetration, and correlates of nonviolent conflict, we created a scale containing 125 possible motives, representing 14 broad domains (e.g., self-defense, retaliation). Participants were an ethnically diverse sample of women who had perpetrated no physical IPV against their current partner (n = 243), threats but not physical IPV (n = 70), nonsevere physical IPV (n = 193), and at least one act of severe (e.g., choke) physical IPV (n = 93). An exploratory factor analysis yielded a seven-factor solution, representing Partners' Negative Behaviors, Increase Intimacy, Personal Problems, Retaliation, Childhood Experiences, Situation/Mood, and Partners' Personal Problems. Differences by women's IPV perpetration and race and/or ethnicity were tested with means representing these seven factors and a computed variable representing self-defense. Although motives differed by perpetration type, main effects for Partners' Negative Behavior, Personal Problems, Retaliation, and Childhood Experiences were modified by interactions, suggesting ethnicity should be considered when developing interventions.


Assuntos
Agressão/psicologia , Controle Interno-Externo , Relações Interpessoais , Maus-Tratos Conjugais/psicologia , Adulto , Conflito Psicológico , Vítimas de Crime/psicologia , Feminino , Humanos , Pessoa de Meia-Idade , Motivação , Análise Multivariada , Fatores Socioeconômicos , Maus-Tratos Conjugais/etnologia , Inquéritos e Questionários
16.
Violence Against Women ; 13(3): 285-97, 2007 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-17322272

RESUMO

This study contrasted the effects of intimate partner and nonpartner sexual assault on women's mental health among a sample (N=835) of low-income, ethnically diverse community women. Compared to sexual assault by a previous partner or by a non-intimate partner, sexual assault by a current partner was the strongest predictor of PTSD, stress, and dissociation. Non-intimate partner sexual assault was only a significant predictor of PTSD and only for African American women. These findings suggest that the victim-offender relationship is important when considering the impact of sexual assault. Specifically, sexual assault perpetrated by an intimate partner may be especially traumatic.


Assuntos
Mulheres Maltratadas/psicologia , Vítimas de Crime/psicologia , Saúde Mental , Delitos Sexuais/psicologia , Maus-Tratos Conjugais/psicologia , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Adulto , Negro ou Afro-Americano/estatística & dados numéricos , Análise de Variância , Feminino , Humanos , Americanos Mexicanos/estatística & dados numéricos , Pessoa de Meia-Idade , Medição de Risco , Delitos Sexuais/etnologia , Parceiros Sexuais/psicologia , Maus-Tratos Conjugais/etnologia , Transtornos de Estresse Pós-Traumáticos/etnologia , Inquéritos e Questionários , Texas , População Branca/estatística & dados numéricos , Saúde da Mulher
17.
Violence Vict ; 20(3): 335-59, 2005 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-16180371

RESUMO

Despite equivocal findings on whether men or women are more violent, the negative impact of violence is greatest for women. To determine how gender asymmetry in perpetration affects women's health status, we conducted a study in two phases with 835 African American, Euro-American, and Mexican American low-income women in Project HOW: Health Outcomes of Women. In Phase 1, we used severity and frequency of women's and male partners' violence to create six groups: nonviolent (NV), uni-directional male (UM) perpetrator, uni-directional female (UF) perpetrator and, when both partners were violent, symmetrical (SYM), male primary perpetrator (MPP), and female primary perpetrator (FPP). The MPP group sustained the most threats, violence, sexual aggression, and psychological abuse. They also reported the most fear. Injury was highest in the MPP and FPP groups. In Phase 2, we examined group differences in women's health status over time for 535 participants, who completed five annual interviews. Surprisingly, women's health in the MPP and FPP violence groups was similar and generally worse than if violence was uni-directional.


Assuntos
Vítimas de Crime , Nível de Saúde , Relações Interpessoais , Maus-Tratos Conjugais , Saúde da Mulher , Adulto , Negro ou Afro-Americano/estatística & dados numéricos , Agressão/psicologia , Vítimas de Crime/psicologia , Vítimas de Crime/estatística & dados numéricos , Estudos Transversais , Características da Família , Feminino , Indicadores Básicos de Saúde , Humanos , Masculino , Americanos Mexicanos/estatística & dados numéricos , Pessoa de Meia-Idade , Pobreza , Maus-Tratos Conjugais/psicologia , Maus-Tratos Conjugais/estatística & dados numéricos , Inquéritos e Questionários , Estados Unidos/epidemiologia , População Branca/estatística & dados numéricos
18.
Violence Vict ; 20(6): 625-43, 2005 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-16468442

RESUMO

The purpose of this cross-sectional analysis of the National Violence Against Women Survey was to characterize current symptoms of posttraumatic stress disorder (PTSD) among 185 men and 369 women survivors of intimate partner violence (IPV). In this subsample, 24% of women and 20% of men had current moderate-to-severe PTSD symptoms. PTSD scores were higher for women than men. Protective factors that appear to increase resiliency of survivors were higher education and income, being currently married, and reporting that IPV had stopped. Higher physical or psychological IPV scores, current depressive symptoms, and the survivor having left the relationship at least once were associated with risk of moderate-to-severe symptoms of PTSD. Protective factors may be used to boost resiliency of IPV survivors and reduce PTSD symptoms.


Assuntos
Maus-Tratos Conjugais/psicologia , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Sobreviventes/psicologia , Adulto , Feminino , Inquéritos Epidemiológicos , Humanos , Masculino , Modelos Psicológicos , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Prevalência , Fatores de Risco , Distribuição por Sexo , Parceiros Sexuais/psicologia , Apoio Social , Fatores Socioeconômicos , Maus-Tratos Conjugais/estatística & dados numéricos , Transtornos de Estresse Pós-Traumáticos/psicologia , Sobreviventes/estatística & dados numéricos , Estados Unidos/epidemiologia
19.
J Consult Clin Psychol ; 72(6): 980-92, 2004 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-15612845

RESUMO

Possible mediators of sexual abuse severity were tested on the basis of D. Finkelhor and A. Browne's (1985) traumagenic dynamics model with 178 low-income African American, European American, and Mexican American community women interviewed for Project HOW: Health Outcomes of Women. This subsample reported contact sexual abuse before the age of 18 years. Severity was level of force, number of perpetrators, relationship to perpetrator, and age at first assault. As expected, structural equation modeling showed powerlessness, and stigmatization largely mediated the effects of sexual abuse severity on women's psychological distress in adulthood. Powerlessness also mediated the effects of severity on maladaptive social relationships. The expected path from betrayal to relationships was nonsignificant. Overall, the results support extension of D. Finkelhor and A. Browne's model. Possible interventions are addressed.


Assuntos
Mulheres Maltratadas/psicologia , Delitos Sexuais/psicologia , Adolescente , Adulto , Criança , Feminino , Seguimentos , Humanos , Relações Interpessoais , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Características de Residência
20.
Br J Math Stat Psychol ; 55(Pt 1): 125-43, 2002 May.
Artigo em Inglês | MEDLINE | ID: mdl-12034015

RESUMO

In the social and behavioural sciences, structural equation modelling has been widely used to test a substantive theory or causal relationship among latent constructs. Cross-validation (CV) is a valuable tool for selecting the best model among competing structural models. Influential cases or outliers are often present in practical data. Therefore, even the correct model for the majority of the data may not cross-validate well. This paper discusses various drawbacks of CV based on sample covariance matrices, and develops a procedure for using robust covariance matrices in the model calibration and validation stages. Examples illustrate that the CV index based on sample covariance matrices is very sensitive to influential cases, and even a single outlier can cause the CV index to support a wrong model. The CV index based on robust covariance matrices is much less sensitive to influential cases and thus leads to a more valid conclusion about the practical value of a model structure.


Assuntos
Ciências do Comportamento/métodos , Modelos Psicológicos , Ciências Sociais/métodos , Humanos
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