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91.
Consider a positive random variable of interest Y depending on a covariate X, and a random observation time T independent of Y given X. Assume that the only knowledge available about Y is its current status at time T : δ=I{Y≤T} with I the indicator function. This paper presents a procedure to estimate the conditional cumulative distribution function F of Y given X from an independent identically distributed sample of (X,T,δ). 相似文献
92.
In this paper, we propose a methodology to analyze longitudinal data through distances between pairs of observations (or individuals) with regard to the explanatory variables used to fit continuous response variables. Restricted maximum-likelihood and generalized least squares are used to estimate the parameters in the model. We applied this new approach to study the effect of gender and exposure on the deviant behavior variable with respect to tolerance for a group of youths studied over a period of 5 years. Were performed simulations where we compared our distance-based method with classic longitudinal analysis with both AR(1) and compound symmetry correlation structures. We compared them under Akaike and Bayesian information criterions, and the relative efficiency of the generalized variance of the errors of each model. We found small gains in the proposed model fit with regard to the classical methodology, particularly in small samples, regardless of variance, correlation, autocorrelation structure and number of time measurements. 相似文献
93.
Sandra De Iaco 《Journal of applied statistics》2013,40(4):808-822
Nowadays, there is an increasing interest in multi-point models and their applications in Earth sciences. However, users not only ask for multi-point methods able to capture the uncertainties of complex structures and to reproduce the properties of a training image, but also they need quantitative tools for assessing whether a set of realizations have the properties required. Moreover, it is crucial to study the sensitivity of the realizations to the size of the data template and to analyze how fast realization-based statistics converge on average toward training-based statistics. In this paper, some similarity measures and convergence indexes, based on some physically measurable quantities and cumulants of high-order, are presented. In the case study, multi-point simulations of the spatial distribution of coarse-grained limestone and calcareous rock, generated by using three templates of different sizes, are compared and convergence toward training-based statistics is analyzed by taking into account increasing numbers of realizations. 相似文献
94.
Sandra M. Stith Chelsea M. Spencer Karen J. Ripoll-Núñez Ana L. Jaramillo-Sierra Farideh Khodadadi-Andariyeh Fatemeh Nikparvar Ria Oksman Juha Metelinen 《Journal of marital and family therapy》2020,46(2):272-288
Intimate Partner Violence (IPV) is a serious international problem. Stith, S. M., McCollum, E. E., and Rosen, K. H. received funding from the US National Institute of Mental Health to develop and test a program for couples experiencing IPV: Domestic Violence Focused Couples Treatment (DVFCT). This article provides an overview of DVFCT, and presents three case studies illustrating how DVFCT has been adapted for use in Colombia, Iran, and Finland. This article emphasizes the need for adapting treatment models to be culturally informed, provides practice-based evidence for DVFCT as a treatment model, and highlights the importance of careful screening and assessment when working with couples who have experienced violence, no matter the country or location where treatment is being conducted. 相似文献
95.
Parent–child power effectiveness was investigated during naturally occurring polyadic family conflict with young children involving three or more family members. In 35/39 families, 210 conflict sequences were identified and coded for type of power, power effectiveness, and conflict outcome. Effective use of power overall and by each partner was assessed using two methods: microscopic (target’s response to an actor’s power move during the process of conflict) and macroscopic (power moves related to conflict outcome). Actor findings revealed that parents were more effective using certain types of power microscopically (i.e., simple, legitimate, reward) and macroscopically (i.e., simple, legitimate, questioning), whereas children were more effective using reward power macroscopically. Our findings support the unique qualities of the parent–child relationship and the complex context of polyadic family conflict. The study contributes to the literature on the socialization of young children in the family context. 相似文献
96.
This paper reports the results of a qualitative study of caregivers of children with disabilities enrolled in a Medicaid-serving accountable care organization (ACO). The state of Ohio mandated ACO enrollment for Medicaid-eligible children with disabilities in 34 of 88 counties effective July 2013. Research participants were queried in focus groups and individual interviews about their children’s care experiences and care coordination after enrollment. Most told researchers that they themselves are their children’s care coordinators, and many indicated that resource scarcity is a more pressing problem than fragmented care. Data analysis identified a theme of scarcity and four categories of insufficiency that made caregiver efforts on behalf of their children more difficult: a lack of health services under managed care, resource constraints on other agencies and programs for which families were eligible, a lack of financial support, and a lack of family support. A conceptual framework places ACO care coordination among more upstream factors and identifies ways in which ACOs serving Medicaid populations may wish to address the social determinants of the well-being of children with disabilities. Implications for future research are discussed. 相似文献
97.
98.
This investigation proposes that theory of mind (ToM) may be related more strongly to change in friendships than peer acceptance in late middle childhood through early adolescence, and examines the relation between ToM and anxious solitude. Fourth grade ToM was tested as a predictor of change in reciprocated friendships, peer acceptance, and anxious solitude from 4th to 7th grade, and, conversely, reciprocated friendships, peer acceptance, and anxious solitude in 3rd grade were tested as predictors of 4th grade ToM. Gender moderation of these relations was evaluated. Participants were 688 American public-school children (51.5% girls), 193 of whom completed a ToM questionnaire in 4th grade. In 3rd–7th grade children and their peers reported reciprocated friendship, and peers reported peer acceptance and anxious solitude annually. A multi-group (gender split) autoregressive cross-lagged panel analysis modeled relations between ToM and reciprocated friendship, peer acceptance, and anxious solitude over time. Consistent with hypotheses, girls’ more advanced 4th grade ToM predicted incremental gains in their number of friendships two years later, but not their peer acceptance. In contrast, boys’ more advanced 4th grade ToM did not predict change in their number of friendships or peer acceptance over time. Gender differences in the relation between ToM and friendship are discussed in the context of gender-specific peer relations patterns in late middle childhood and early adolescence. Additionally, more advanced 4th grade ToM predicted gains in anxious solitude in middle school for both genders. This somewhat surprising result is discussed in relation to ToM assessment and peer relations in anxious solitary children. 相似文献
99.
This evaluation assessed whether participation in Parents Anonymous mutual support groups was associated with child maltreatment prevention. Parents new to groups across the United States were interviewed at baseline, one month, and six months. Using standardized scales, all parents showed improvements in some child maltreatment outcomes, risk factors, and protective factors. Parents starting out with particularly serious needs showed statistically significant improvement on every scale. Results indicated that Parents Anonymous participation contributes to child maltreatment reduction. 相似文献
100.
Dr. Sandra Praxmarer 《Zeitschrift für Betriebswirtschaft》2009,79(5):609-632
Several studies give recommendations which actions a company can take to build its partners’ trust in business relationships. Studies report that, for instance, a company’s flexibility and detailed contractual agreements may positively affect the partner’s trust. However, cultural norms may moderate the effects of potential actions on the partner’s trust and this has hardly been considered in relevant literature. The present paper explains why actions a company takes may have different effects on trust in different cultures. Suggestions for future research and the design of empirical studies are proposed. 相似文献