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   10313篇
  免费   35篇
  2019年   24篇
  2018年   1527篇
  2017年   1368篇
  2016年   995篇
  2015年   50篇
  2014年   24篇
  2013年   145篇
  2012年   297篇
  2011年   1144篇
  2010年   1151篇
  2009年   643篇
  2008年   828篇
  2007年   1123篇
  2006年   38篇
  2005年   118篇
  2004年   85篇
  2003年   68篇
  2002年   54篇
  2001年   66篇
  2000年   69篇
  1999年   48篇
  1998年   24篇
  1997年   15篇
  1996年   9篇
  1995年   11篇
  1993年   12篇
  1992年   12篇
  1991年   24篇
  1990年   31篇
  1989年   17篇
  1988年   13篇
  1987年   16篇
  1986年   18篇
  1985年   18篇
  1984年   8篇
  1983年   11篇
  1982年   12篇
  1980年   8篇
  1979年   9篇
  1978年   14篇
  1976年   13篇
  1975年   13篇
  1974年   7篇
  1973年   15篇
  1972年   11篇
  1970年   13篇
  1969年   11篇
  1968年   14篇
  1967年   10篇
  1966年   7篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
881.
To advance international mental health assessment, instruments that have been internationally validated are needed. To this end, we analyzed ratings from 14 societies on the Adult Behavior Checklist (ABCL), a collateral-report form parallel to the Adult Self-Report (ASR; Achenbach and Rescorla 2003) for ages 18 to 59. Both the ABCL and the ASR assess problems, personal strengths, and adaptive functioning. For a sample of 8322 see note below collaterals, we found strong consistency across societies regarding which ABCL problem items tended to obtain relatively low, medium, or high ratings. Most societal effect sizes (ESs) for problem scale scores were small to medium (< 13.9 %), but the ES for the ABCL Personal Strengths scale was 25 %. For most of the same participants (N = 8,302), we analyzed cross-informant agreement between self-reports on the ASR and collateral reports on the ABCL. Cross-informant correlations for problem scale scores averaged .47, with considerable societal variation. Problem score means were higher on the ASR than the ABCL in every society, but the size of the difference varied across societies. Mean item ratings on the ABCL and ASR were highly correlated within every society (mean r = .92), but within-dyad item rating agreement varied widely in every society (mean r = .39). In all societies, non-corroboration of self-reported deviance and of collateral-reported deviance was common. Overall findings indicated considerable similarity but also some important differences in collateral-reported problems and adaptive functioning across 14 societies.  相似文献   
882.

Purpose

The purpose of this study was to investigate whether situational factors predict ethicality judgments of theft behavior, and whether the effect of situational factors is moderated by moral relativism.

Design/Methodology/Approach

Data were obtained across two laboratory experiments using undergraduate business students attending a Canadian university (n = 372). Student participants viewed a videotaped vignette of an employee informed that he had been caught stealing sales commission. In the vignettes, we manipulated two situational factors: whether or not (a) the theft has monetary consequences for the organization, and (b) similar theft is commonplace within the organization.

Findings

In Experiment 1, both situational factors interacted with moral relativism in the prediction of ratings of unethical conduct. In Experiment 2, using a within-participant research design, we achieved an interaction between the organizational consequences manipulation and moral relativism, although we obtained a considerably stronger effect size for the interaction compared to the first experiment.

Implications

We discuss implications of our findings and suggest avenues for future research. In particular, we consider the possibility that managers may not share a common frame-of-reference when considering the ethicality of theft. This could affect whether and the extent to which theft behavior is reprimanded.

Originality/Value

Our study contributes to research on employee theft, and also adds incrementally to our understanding of how both situational factors and moral relativism jointly influence perceptions of theft behavior.
  相似文献   
883.

Purpose

Workplace age discrimination research is proliferating, but researchers lack a valid measure with which to capture targets’ discriminatory experiences. We developed a measure of perceived workplace age discrimination that assesses overt and covert forms of discrimination and then compared older, middle-aged, and younger workers’ experiences.

Design/Methodology

In Study 1, we developed the Workplace Age Discrimination Scale (WADS) based on older workers’ experiences using a deductive approach, a qualitative study, and two quantitative surveys. In Study 2, we validated the measure among young employees using a qualitative and two quantitative surveys. In Study 3, we tested the WADS among middle-aged workers and tested models of invariance between age groups.

Findings

Participants frequently endorsed covert discriminatory experiences, which the WADS reflects. The WADS contains convergent and discriminant validity, high reliability, and a unidimensional structure across age groups. It demonstrates criterion-related validity among older and younger workers but not middle-aged workers, given their low experiences of age discrimination. Age discrimination frequency follows a U-shaped pattern across age groups.

Implications

Researchers can use the WADS to identify long-term outcomes of age discrimination and to further compare workers’ discriminatory experiences. Practitioners and policymakers can use the measure to develop interventions to ameliorate workplace age discrimination and inform policymaking.

Originality/Value

The WADS is the first validated measure of targets’ perspectives of workplace age discrimination. Our results challenge assumptions that only older workers experience age discrimination (younger workers’ means were highest) and that age discrimination is usually overt in nature (it is often covert).
  相似文献   
884.

Purpose

Based on the conservation of resource (COR) theory, we hypothesize that one’s ability to manage resources will moderate the relationship between the use of positive impression management (IM) and other desired resources, such that those able to manage resources will have higher levels of social resources (reputation and leader–member exchange) when expending energy through the use of positive IM tactics. Additionally, we expect higher levels of these social resources will lead to higher performance ratings.

Design/Methodology/Approach

We conducted a two-study replication. In Study One (n = 213), data were collected at two time points. Dyadic data were collected in Study Two (n = 83) to demonstrate consistent relationships across two different study designs.

Findings

Our findings indicate that the ability to manage resources is associated with higher levels of social resources, such as reputation and high quality LMX, which are ultimately associated with positive workplace outcomes, specifically job performance.

Implications

The ability to manage one’s resources is a crucial individual capability that allows individuals to secure positive work outcomes. This research highlights the utility of resources management initiatives that organizations might want to provide to their workers, such as equipment, support personnel, and the autonomy to pace oneself during hectic endeavors.

Originality/Value

We investigate an individual difference in the COR process, which is lacking in the current literature (Hobfoll and Shirom 2000). Further, this research examines COR consequences beyond stress-related outcomes. Lastly, our research highlights the value of examining IM in light of COR theory.
  相似文献   
885.
The field of affective clinical science has expanded dramatically over the past several decades (Rottenberg and Gross 2003; Tracy et al. 2014). An important part of this research is understanding emotion regulation and dysregulation, in particular, how individuals differ in their ability to identify, accept, and manage their emotional experiences. One of the most common and widely cited measures of emotion dysregulation is the Difficulties with Emotion Regulation Scale (DERS; Gratz and Roemer 2004), which has been extensively used to facilitate understanding of how emotion dysregulation is associated with psychiatric symptoms, other emotion-related constructs, and treatment progress. While this scale has contributed greatly to our understanding of emotion regulation problems, its length makes its inclusion in brief study protocols difficult, limiting its utility and increasing participant burden. In order to address this issue, we developed a short form version of the DERS (DERS-18) composed of the strongest items from each of the measure’s six subscales from the original DERS publication (Gratz and Roemer 2004), and then validated this measure in five datasets that vary in age and sample type. Our results demonstrate that an 18-item short-form of the DERS exhibits a similar structure as the original 36-item DERS, demonstrates excellent reliability and validity, and performs similarly to the original DERS despite comprising half the items. The DERS-18 has the potential to improve and expand emotion regulation assessment while reducing demands on research participants.  相似文献   
886.
Conventional views purport that mindfulness includes two components: present moment contact (PMC) and nonjudgment. While mindfulness-based interventions that target a broad spectrum of psychopathology, including posttraumatic stress disorder (PTSD), emphasize “being present” as a key mechanism toward wellness, researchers have struggled to measure PMC and assess its clinical utility. Is there any inherent value in PMC or is its clinical utility contingent upon simultaneously engaging in nonjudgment? This pilot study introduces an experimental paradigm designed to dismantle mindfulness and examine the utility of these two components. Forty women with interpersonal victimization histories were assigned to either a nonjudgment condition or a control condition. Next, participants recalled their trauma and then wrote down whatever information was present in their awareness. PMC was measured in both conditions by assessing the frequency of present tense verbs used within these written protocols. As predicted, in the absence of nonjudgment, PMC was related to high negative affect and low positive affect, though unrelated to trauma intrusion frequency. In the nonjudgment condition, PMC was no longer related to state affect and inversely related to trauma intrusion frequency. These pilot data suggest that isolating PMC from nonjudgment may be unhelpful and perhaps iatrogenic.  相似文献   
887.
Clinicians and researchers have found differential diagnosis to be difficult, particularly for conceptually similar disorders. One category of particular interest has been distress or internalizing disorders, theorized to be related via an underlying construct of generalized distress or negative affect. The present study attempted to address the comorbidity of three distress disorders - posttraumatic stress disorder (PTSD), major depressive disorder (MDD), and generalized anxiety disorder (GAD) - using latent analyses by controlling for the variance attributable to negative affect. The sample consisted of 265 trauma-exposed individuals who completed self-report measures of PTSD, MDD, GAD, and negative affect. Confirmatory factor analysis was used to test initial model fit. Next, the model was re-computed, controlling for negative affect by regressing negative affectivity at the item-level. Results indicated that a significant amount of variance within and between these diagnostic categories is attributable to negative affect at both the item- and factor-level. The hypothesis that MDD’s non-somatic/affective factor and the GAD factor would have the highest attenuations in factor loadings after controlling for negative affect was supported. Therefore, negative affect significantly influences the co-occurrence of PTSD, MDD, and GAD clinically, emphasizing the need for transdiagnostic interventions for trauma victims.  相似文献   
888.
This study evaluated the association between sexual victimization history, posttraumatic stress symptoms, and women’s decision making in social situations, and whether ethnicity moderated these associations. Participants were 334 undergraduate women between ages 18 and 24. The sample was diverse ethnically (Non-Hispanic white, n = 177; Hispanic, n = 157) and composed primarily of freshman, single women. Stimuli were written vignettes describing social situations that varied in their degree of victimization risk. Participants completed tasks that assessed their ability to generate and select responses to the situations, as well as their perceived efficacy in executing responses. They then completed the Sexual Experiences Survey to quantify the severity of victimization experiences and the PTSD Checklist – Civilian Version to measure symptoms of posttraumatic stress. Structural equation modeling (SEM) of women’s decision making revealed that more severe victimization history and greater posttraumatic stress symptoms were associated with less effective response generation, and greater posttraumatic stress symptoms was associated with reduced perceived efficacy in executing effective responses. Ethnicity also moderated the effect of victimization history on perceived efficacy. For Non-Hispanic White women, more severe victimization history was related to less effective response generation and perceived efficacy when considering responses, while for Hispanic women, victimization history was unrelated to both decision making processes. This study emphasizes the importance of decision making as it relates to women’s victimization risk. These processes, as well as the influence of ethnicity on women’s decision making, appear relevant to consider when developing preventative interventions for college women.  相似文献   
889.
Statistical analysis of white-light interferometry (WLI) experiments performed on Ni-based single-crystal superalloys (SX) have revealed a different height distribution between the dendritic cores (DCs) and the interdendritic regions (IRs) of the polished samples. The micromechanical property difference is largely ascribed to the uneven distribution of the alloying elements. In this context, possible reasons for this difference are discussed by comparing with different experiment results obtained by previous researchers, and a proposal forecasting the hardness ratio of IRs/DCs is put forward.  相似文献   
890.
The present longitudinal study, based on existing theoretical tenets, explored a conceptual model that depicted four major orientations: optimism, self-efficacy, and academic well-being. An important question for consideration, in this case, involved the testing of different untested trajectories that could explain and predict individuals’ mastery-approach goal orientations. This research investigation, in particular, is of significance for its unexploratory nature, and its findings, we contend, would contribute to our understanding of individuals’ academic and learning patterns. Data were collected across six separate time points, and path analytical procedures were used to test the hypothesized relationships. MPlus 7.3 produced a number of notable findings, emphasizing mediating mechanisms and interesting trajectories, for example: (1) the impact of enactive learning experience on Time 1 optimism and Time 3 self-efficacy, (2) the positive impact of Time 1 optimism on Time 2 motivation towards learning, and on Time 3 self-efficacy, (3) the direct impact of Time 1 optimism on Time 6 mastery-approach goals, mediated by Time 4 optimism and then Time 5 motivation towards learning. This evidence, overall, is substantive in terms of making theoretical contributions, as well as informing sound pedagogical practices for consideration and implementation.  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