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211.
Mixture factor analysis is examined as a means of flexibly estimating nonnormally distributed continuous latent factors in the presence of both continuous and dichotomous observed variables. A simulation study compares mixture factor analysis with normal maximum likelihood (ML) latent factor modeling. Different results emerge for continuous versus dichotomous outcomes. For dichotomous outcomes, normal ML path estimates have bias that worsens as latent factor skew/kurtosis increases and does not diminish as sample size increases, whereas the mixture factor analysis model produces nearly unbiased estimators as sample sizes increase (500 and greater) and offers near nominal coverage probability. For continuous outcome variables, both methods produce factor loading estimates with minimal bias regardless of latent factor skew, but the mixture factor analysis is more efficient. The method is demonstrated using data motivated by a study on youth with cystic fibrosis examining predictors of treatment adherence. In summary, mixture factor analysis provides improvements over normal ML estimation in the presence of skewed/kurtotic latent factors, but due to variability in the estimator relating the latent factor to dichotomous outcomes and computational issues, the improvements were only fully realized, in this study, at larger sample sizes (500 and greater). 相似文献
212.
Annie Roy-Charland Melanie Perron Cheryl Young Jessica Boulard Justin A. Chamberland 《The Journal of genetic psychology》2013,174(5):281-298
The goal of the present study was to test the Perceptual-Attentional Limitation Hypothesis in children and adults by manipulating the distinctiveness between expressions and recording eye movements. Children 3–5 and 9–11 years old as well as adults were presented pairs of expressions and required to identify a target emotion. Children 3–5 years old were less accurate than those 9–11 years old and adults. All children viewed pictures longer than adults but did not spend more time attending to the relevant cues. For all participants, accuracy for the recognition of fear was lower than for surprise when the distinctive cue was in the brow only. They also took longer and spent more time in both the mouth and brow zones than when a cue was in the mouth or both areas. Adults and children 9–11 years old made more comparisons between the expressions when fear comprised a single distinctive cue in the brow than when the distinctive cue was in the mouth only or when both cues were present. Children 3–5 years old made more comparisons for brow only than both. The results of the present study extend on the Perceptual-Attentional Limitation Hypothesis showing an importance of both decoder and stimuli, and an interaction between decoder and stimuli characteristics. 相似文献
213.
In this study, 6- and 9-year-old children (N = 258) observed two instances of proactive aggression (one relational and the other direct aggression) that were committed by members of a group toward out-group members. Participants were either members of the group or independent observers. Analyses of participants’ social cognition about the aggressor and the aggression (cause of aggression, moral judgment of aggression, attitudes toward the aggressor, and exclusion of the aggressor) indicated that, overall, group members were more positive toward aggressors than were independent observers. Although intergroup competition was perceived to be the cause of the aggression, participants disapproved of both types of aggression (especially direct aggression), disapproval increased with age, and girls disapproved of relational aggression more than did boys. Group members’ social cognition about the aggressor and the aggression comprised a coherent cognitive process for both types of aggression, but the observers’ process was simpler and differed by aggression type. 相似文献
214.
Social capital (Coleman, 1990), democracy's wellspring (Putnam, 1993; Tocqueville, 1835/2000), must now accrue within a social fabric that has been changed by the ubiquitous adoption of technologies such as television and the Internet. Three studies (N = 313) of college students supported a theory of ersatz social behavior, which proposed that: a) the use of technological (replacement/ersatz) alternatives to real social interaction may be less conducive to the skill building and opinion formation that foster social capital; b) ersatz activities involve fewer costs (effort, risk of rejection) than real interactions; and c) ersatz alternatives are regularly chosen, even though real interaction is ostensibly preferred. The results provide increased understanding of when and how mediated interaction can be detrimental to social capital formation. 相似文献
215.
Melanie C. Green Sheryl Kass Jana Carrey Benjamin Herzig Ryan Feeney John Sabini 《Media Psychology》2013,16(4):512-539
“Transportation into a narrative world” is a state of immersion into a story (Green & Brock, 2000). Transportation entails imagery, emotional response, and attentional focus. Two studies investigated whether transportation was affected by the medium of story presentation, especially when the narrative was experienced for a second time (e.g., watching the movie version of a previously read story). Study 1 (N = 88) showed that people who read a novel before viewing the film version were more transported into the film compared to nonreaders. In Study 2 (N = 71) participants came to the lab on two separate occasions to either read a passage or watch a movie clip. Reading followed by watching provided the greatest transportation. Furthermore, high need for cognition individuals were more transported when reading, whereas low need for cognition individuals were more transported when watching a narrative. 相似文献
216.
Readers typically respond with anger and derogation when they discover that an author has engaged in intentional deception (representing a false story as true). Does this negative response to the author also cause individuals to correct beliefs that may have been changed by the discredited story? In this experiment (N = 160), the alleged truth status of a narrative was manipulated. In one condition, the narrative was presented as fictional (a socially accepted form of untruth). The remaining three conditions initially presented the story as factual. Participants in two of these conditions were informed after reading the story that it was inaccurate due to a) accidental error or b) intentional deception. The story changed attitudes from a no-story control in all conditions. Although readers derogated a deceptive author, they did not correct their attitudes even in the intentional and accidental error conditions. A measure of the parts of the story that the participants rejected (false note circling), suggests that participants were motivated to correct for inaccuracies, but were not able to do so effectively. 相似文献
217.
Melanie K. Barnes 《Journal of Loss and Trauma》2013,18(3):275-298
Abstract The loss of a close relational partner, whether a family member, friend, spouse, or romantic partner, is one of the most difficult, and at the same time predictable, situations that individuals can experience. Although the grieving process is very individual, one's support network can either facilitate or hinder the coping process. This article utilizes a case study approach to consider the ways that one's social network provides emotional and instrumental support following the death of a close relational partner. A 21-year-old female whose fiance was killed in a traffic accident participated in three separate interviews at 4, 9, and 16 months after the accident. Interpretive analyses support the assertion that, as individuals progress through the various phases of bereavement, their needs for specific forms of social support change, as do their perceptions of what is helpful and unhelpful. 相似文献
218.
Anika Nitzsche Melanie Neumann Sophie E. Groß Lena Ansmann Holger Pfaff Walter Baumann 《Psychology, health & medicine》2017,22(4):462-473
Hematologists and oncologists in private practice play a central role in the care provided for cancer patients. The present study analyzes stress and relaxation aspects in the work of hematologists and oncologists in private practice in Germany in relation to emotional exhaustion, as a core dimension of burnout syndrome. The study focuses on the opportunities for internal recovery using breaks and time out during the working day, the frequency of working on weekends and on vacation, and the physician’s work–home and home–work conflict. Postulated associations between the constructs were analyzed using a structural equation model. If work leads to conflicts in private life (work–home conflict), it is associated with greater emotional exhaustion. Working frequently at the weekend is associated with greater work–home conflict and indirectly with greater emotional exhaustion. By contrast, the availability of opportunities to relax and recover during the working day is associated with less work–home conflict and indirectly with less emotional exhaustion. These results underline the importance of internal recovery opportunities during the working day and a successful interplay between working and private life for the health of outpatient hematologists and oncologists. 相似文献
219.
Ulrike Willinger Andreas Hergovich Michaela Schmoeger Matthias Deckert Susanne Stoettner Iris Bunda Andrea Witting Melanie Seidler Reinhilde Moser Stefanie Kacena David Jaeckle Benjamin Loader Christian Mueller Eduard Auff 《Cognitive processing》2017,18(2):159-167
Humour processing is a complex information-processing task that is dependent on cognitive and emotional aspects which presumably influence frame-shifting and conceptual blending, mental operations that underlie humour processing. The aim of the current study was to find distinctive groups of subjects with respect to black humour processing, intellectual capacities, mood disturbance and aggressiveness. A total of 156 adults rated black humour cartoons and conducted measurements of verbal and nonverbal intelligence, mood disturbance and aggressiveness. Cluster analysis yields three groups comprising following properties: (1) moderate black humour preference and moderate comprehension; average nonverbal and verbal intelligence; low mood disturbance and moderate aggressiveness; (2) low black humour preference and moderate comprehension; average nonverbal and verbal intelligence, high mood disturbance and high aggressiveness; and (3) high black humour preference and high comprehension; high nonverbal and verbal intelligence; no mood disturbance and low aggressiveness. Age and gender do not differ significantly, differences in education level can be found. Black humour preference and comprehension are positively associated with higher verbal and nonverbal intelligence as well as higher levels of education. Emotional instability and higher aggressiveness apparently lead to decreased levels of pleasure when dealing with black humour. These results support the hypothesis that humour processing involves cognitive as well as affective components and suggest that these variables influence the execution of frame-shifting and conceptual blending in the course of humour processing. 相似文献
220.
Becci A. Akin Melanie M. Domenech Rodríguez Yueqi Yan David S. DeGarmo Thomas P. McDonald Marion S. Forgatch 《Journal of child and family studies》2017,26(1):137-147
The present article employed a sample of 365 families of children in foster care to conduct a validation test of a newly developed instrument, the Parent Child Checklist (PCC). The PCC is a 54-item direct observation measure assessing parent–child interactions in the context of a family session. The PCC was developed to support the effective implementation of an evidence-based intervention, Parent Management Training-Oregon model, in the Kansas child welfare system. The PCC was designed to capture two scales of child behavior (prosocial and problem behavior) and five parenting domains (encouragement, positive involvement, problem solving, communication skill, and effective discipline). A combination of exploratory and confirmatory factor analysis was used in this first stage validation of the checklist. Results indicated the PCC scales obtained adequate internal consistency and interrater reliability. The confirmatory factor analysis supported 6 of the 7 expected scale domains; however, a two-factor solution was better - supported among the discipline items, labeled as effective and ineffective discipline. Test–retest reliability ranged from 0.45 to 0.80 across child behavior and parenting domains with alpha levels ranging from 0.65 to 0.88. A behavioral observation rating scale for clinicians that is reliable and feasible to implement can represent a significant improvement to practice-as-usual. 相似文献