首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   111篇
  免费   6篇
  117篇
  2021年   1篇
  2020年   1篇
  2019年   5篇
  2018年   5篇
  2017年   1篇
  2016年   8篇
  2015年   2篇
  2014年   2篇
  2013年   20篇
  2012年   7篇
  2011年   9篇
  2010年   2篇
  2009年   5篇
  2008年   5篇
  2007年   7篇
  2006年   2篇
  2004年   1篇
  2003年   4篇
  2002年   1篇
  2001年   1篇
  2000年   2篇
  1999年   3篇
  1998年   5篇
  1997年   4篇
  1995年   2篇
  1994年   3篇
  1993年   2篇
  1992年   2篇
  1991年   1篇
  1986年   1篇
  1984年   1篇
  1977年   1篇
  1972年   1篇
排序方式: 共有117条查询结果,搜索用时 15 毫秒
51.
Emotion strengthens the subjective experience of recollection. However, these vivid and confidently remembered emotional memories may not necessarily be more accurate. We investigated whether the subjective sense of recollection for negative stimuli is coupled with enhanced memory accuracy for contextual details using the remember/know paradigm. Our results indicate a double-dissociation between the subjective feeling of remembering, and the objective memory accuracy for details of negative and neutral scenes. "Remember" judgments were boosted for negative relative to neutral scenes. In contrast, memory for contextual details and associative binding was worse for negative compared to neutral scenes given a "remember" response. These findings show that the enhanced subjective recollective experience for negative stimuli does not reliably indicate greater objective recollection, at least of the details tested, and thus may be driven by a different mechanism than the subjective recollective experience for neutral stimuli.  相似文献   
52.
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.  相似文献   
53.
Mixture modeling is a popular method that accounts for unobserved population heterogeneity using multiple latent classes that differ in response patterns. Psychologists use conditional mixture models to incorporate covariates into between-class and/or within-class regressions. Although psychologists often have missing covariate data, conditional mixtures are currently fit with a conditional likelihood, treating covariates as fixed and fully observed. Under this exogenous-x approach, missing covariates are handled primarily via listwise deletion. This sacrifices efficiency and does not allow missingness to depend on observed outcomes. Here we describe a modified joint likelihood approach that (a) allows inference about parameters of the exogenous-x conditional mixture even with nonnormal covariates, unlike a conventional multivariate mixture; (b) retains all cases under missing at random assumptions; (c) yields lower bias and higher efficiency than the exogenous-x approach under a variety of conditions with missing covariates; and (d) is straightforward to implement in available commercial software. The proposed approach is illustrated with an empirical analysis predicting membership in latent classes of conduct problems. Recommendations for practice are discussed.  相似文献   
54.
The everyday use of mobile devices is sometimes performed in a minimally conscious manner (e.g., automaticity, habits, impulses), whereas other times it is performed in a highly conscious manner (e.g., immersion, presence, absorption). In Study 1, we surveyed individuals (n = 250) to evaluate the seemingly oppositional relationship between automatic (less conscious) and immersive (more conscious) tendencies toward texting. Despite their standard separation, confirmatory factor analyses revealed that automaticity and immersion were actually positively related independent of usage frequency. In Study 2 (n = 526), these consciousness tendencies were related to select facets of trait self‐control and mindfulness. Together, these studies underline the importance of media cognition in combination with personality factors for understanding the psychology of mobile device use.  相似文献   
55.
Although posttraumatic stress disorder (PTSD) and other psychiatric symptoms are well‐established risk factors for suicidal ideation among returning veterans, less attention has been paid to whether the stress of reintegrating into civilian society contributes to suicidal ideation. Utilizing a sample of 232 returning veterans (95% male, mean age = 33.63 years) seeking PTSD treatment, this study tested whether reintegration difficulties contribute to suicidal ideation over and above the influence of PTSD symptoms, depression symptoms, and potential substance misuse. Logistic regressions indicated that reintegration stress had a unique effect on suicidal ideation over and above PTSD and depression symptoms. Reintegration stress interacted with substance misuse to predict suicidal ideation, such that the effect of reintegration stress on suicidal ideation was much larger for those with potential substance misuse. Exploratory analyses also examined which types of reintegration difficulties were associated with suicidal ideation, and found that difficulty maintaining military friendships, difficulty getting along with relatives, difficulty feeling like you belong in civilian society, and difficulty finding meaning/purpose in life were all significantly associated with suicidal ideation, beyond the effects of psychiatric symptoms and potential substance misuse. Findings highlight the importance of addressing reintegration stress for the prevention of suicide among returning veterans. Implications for treatment are discussed.  相似文献   
56.
Abstract

Research has indicated that women may be particularly prone to experiencing mathematics anxiety and, to account for this, the sex-role socialization hypothesis posits that women are more math anxious because they have had less experience with mathematics and have more negative opinions regarding mathematics. In contrast, the math experiences hypothesis suggests that math anxiety is not truly a gender-related phenomenon, but rather is due to poor mathematical preparation, regardless of gender. The present study pitted the “sex-role” hypothesis against the “math experience” hypothesis in an examination of the relation between gender and math anxiety. One hundred and seventy-one university students completed a measure of math anxiety and a series of questions regarding their math marks, opinions, and experiences throughout their educational history. The findings clearly supported the math experience hypothesis of math anxiety, for differences in math marks, opinions, and experiences were found between non-math-anxious, moderately math-anxious, and highly math-anxious students. The few gender differences that were found indicated that the female students frequently reported higher math marks than those reported by male students. We suggest that the relation between gender and mathematics anxiety may be accounted for by gender-linked reporting biases. The limitations of the study are addressed and suggestions for future research are made.  相似文献   
57.
58.
Different random or purposive allocations of items to parcels within a single sample are thought not to alter structural parameter estimates as long as items are unidimensional and congeneric. If, additionally, numbers of items per parcel and parcels per factor are held fixed across allocations, different allocations of items to parcels within a single sample are thought not to meaningfully alter model fit—at least when items are normally distributed. We show analytically that, although these statements hold in the population, they do not necessarily hold in the sample. We show via a simulation that, even under these conservative conditions, the magnitude of within-sample item-to-parcel-allocation variability in structural parameter estimates and model fit can alter substantive conclusions when sampling error is high (e.g., low N, low item communalities, few items per few parcels). We supply a software tool that facilitates reporting and ameliorating the consequences of item-to-parcel-allocation variability. The tool's utility is demonstrated on an empirical example involving the Neuroticism-Extroversion-Openness (NEO) Personality Inventory and the Computer Assisted Panel Study data set.  相似文献   
59.

The purpose of the present research was to examine the perceptions of women who drink in social contexts through the lens of dehumanization (Haslam 2006). Across three experiments, we manipulated the presence of alcohol by depicting a woman at a bar with a bottle of beer or a bottle of water and measured dehumanization. As hypothesized, women were dehumanized more in the alcohol condition than in the water condition by men (Experiments 1–3) and women (Experiments 2 and 3). Notably, the presence of alcohol compared to water had no impact on dehumanization of men (Experiment 2). Also, as hypothesized, perceived intoxication emerged as a significant mediator of the link between alcohol condition and dehumanization in Experiments 1 and 2, and alcohol quantity predicted greater dehumanization in Experiment 3. Extending the present work to prior work in this area, Experiment 3 also examined the links among alcohol, perceived sexual availability, and dehumanization, revealing that perceived sexual availability mediated the link between alcohol and dehumanization. Implications for theories of dehumanization, alcohol, and social perception as well as practical implications of these findings are discussed.

  相似文献   
60.
This study examined whether coping moderated the impact of community violence exposure (CVE) on violent behavior among 285 urban African American and Latino adolescent males assessed annually across 5 years. Composites indicating overall CVE (having knowledge of others’ victimization, witnessing violence, direct victimization) and approach to coping with CVE were created by averaging across years 1–3 (Time 1; mean ages 14–16). Adolescents classified as coping effectively tended to respond to CVE in beneficial ways (e.g., developing long-term solutions, engaging in positive reappraisal). Violent behavior was examined across years 1–3 (Time 1) and years 4–5 (Time 2; mean ages 18–19). CVE was longitudinally associated with greater violent behavior, adjusting for Time 1 levels of violent behavior. This association was significant only among adolescents with less effective coping strategies. Interventions targeting the enhancement of coping skills may be an effective method of reducing the impact of CVE on adolescent violent behavior. Sonya S. Brady is now an Assistant Professor in the Division of Epidemiology and Community Health, School of Public Health at the University of Minnesota (1300 South Second Street, Suite 300, Minneapolis, MN 55454-1015, USA; Tel.: +1-612-6241818; Fax: +1-612-6240315.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号