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   5341篇
  免费   2318篇
  国内免费   155篇
  2024年   9篇
  2023年   57篇
  2022年   49篇
  2021年   184篇
  2020年   256篇
  2019年   691篇
  2018年   558篇
  2017年   681篇
  2016年   654篇
  2015年   546篇
  2014年   467篇
  2013年   821篇
  2012年   336篇
  2011年   296篇
  2010年   232篇
  2009年   199篇
  2008年   157篇
  2007年   184篇
  2006年   203篇
  2005年   204篇
  2004年   136篇
  2003年   150篇
  2002年   145篇
  2001年   144篇
  2000年   103篇
  1999年   82篇
  1998年   41篇
  1997年   48篇
  1996年   42篇
  1995年   42篇
  1994年   37篇
  1993年   11篇
  1992年   15篇
  1991年   3篇
  1990年   3篇
  1989年   2篇
  1987年   5篇
  1985年   3篇
  1984年   3篇
  1983年   2篇
  1981年   1篇
  1980年   2篇
  1979年   2篇
  1978年   1篇
  1977年   1篇
  1976年   5篇
  1975年   1篇
排序方式: 共有7814条查询结果,搜索用时 15 毫秒
851.
Social support systems can have either a beneficial or adverse effect when a family faces stress. Hence, support perceived by family members is an important construct. We studied the psychometric properties of the Family Support Scale (FSS) with a sample of 244 low-income families of children in a Head Start program, and we conducted an exploratory factor analysis with the scale. We obtained a 5-factor solution for the FSS when assessing the family support of low-income families. The internal consistency and test-retest reliability were moderately high for the 5 proposed subscales. The factor structure obtained may prove more valid for Head Start families than structures from previous studies, although there is still a need for further psychometric study of the FSS.  相似文献   
852.
Based on organizational socialization literature (e.g., Bauer, Bodner, Erdogan, Truxillo, & Tucker, 2007; Kammeyer-Mueller & Wanberg, 2003; Saks, Uggerslev, & Fassina, 2007) and Conservation of Resources theory (COR theory; Hobfoll, 1989, 2001), this article aims to develop a conceptualization and a measurement of cognitive adjustment at work (CAW), as an indicator of psychological health in the workplace. Two studies, including three independent samples (NA = 296, NB = 350, NC = 139), were conducted to test an operational proposal of CAW. In Study 1, exploratory and confirmatory factor analyses, as well as reliability and temporal invariance analyses, were performed to test the structure of both the construct and the instrument. In Study 2, nomological network analysis was conducted. Results suggest strong empirical support for the structure and validity of CAW, defined as a second-order factor, which includes task adjustment, work group adjustment and organizational adjustment.  相似文献   
853.
State work engagement (SWE), a multidimensional construct of work-related well-being, was originally conceptualized as a trait, but diary studies have revealed substantial within-person fluctuations. Given that SWE is conceptualized as a work-related affective-motivational construct, the question arises as to whether SWE can be differentiated from other affective constructs. Thus, the goal of the present study was to compare SWE and state affect with respect to their degree of within-person variability and to examine their distinct relationships with health and performance variables (i.e., sleep quality and job performance). Fifty-two employees (44% female) participated in the study, which included 3 assessments per day over the course of 2 weeks. Our results revealed that energetic arousal and tense arousal fluctuated more strongly within days than vigor and absorption. Multilevel analyses demonstrated that high sleep quality predicted higher state affect but not higher SWE. In addition, vigor exhibited an inverted U-shaped relation with performance. In sum, SWE as a time-varying construct showed some overlap with state affect but also demonstrated discriminant validity.  相似文献   
854.
This study addresses the socio‐cognitive determinants of traffic offences, in particular of speeding and drinking and driving. It has two aims: (1) to test the hypothesis of a direct effect of habits on offences (i.e., independent of intentions) by employing a specific measure of habits (i.e., the SRIH) and (2) to analyse the offences by taking account of three distinct parameters: Frequency, usual magnitude (i.e., the most frequent deviation from the law) and maximal magnitude (i.e., the greatest deviation occasionally adopted) in order to represent more accurately the variability of the offending behaviours. A total of 642 drivers replied to a questionnaire. The results corroborate the idea that intention and habit are distinct and direct determinants of offences. The use of the SRIH dismisses the criticisms made with regard to the measure of past behaviour. The distinction between the three behavioural parameters proves to be relevant, as their determinants are not exactly similar. Finally, attitude and subjective norm had direct effects on the maximal magnitude and/or on the frequency of the offence. The discussion concerns the contribution of this study to the analysis of offences as well as its limitations and addresses the theoretical plausibility of the direct effects of attitude and the subjective norm.  相似文献   
855.
Although the experience of insight has long been noted, the essence of the ‘Aha!’ experience, reflecting a sudden change in the brain that accompanies an insight solution, remains largely unknown. This work aimed to uncover the mystery of the ‘Aha!’ experience through three studies. In Study 1, participants were required to solve a set of verbal insight problems and then subjectively report their affective experience when solving the problem. The participants were found to have experienced many types of emotions, with happiness the most frequently reported one. Multidimensional scaling was employed in Study 2 to simplify the dimensions of these reported emotions. The results showed that these different types of emotions could be clearly placed in two‐dimensional space and that components constituting the ‘Aha!’ experience mainly reflected positive emotion and approached cognition. To validate previous findings, in Study 3, participants were asked to select the most appropriate emotional item describing their feelings at the time the problem was solved. The results of this study replicated the multidimensional construct consisting of approached cognition and positive affect. These three studies provide the first direct evidence of the essence of the ‘Aha!’ experience. The potential significance of the findings was discussed.  相似文献   
856.
We consider multi‐set data consisting of observations, k = 1,…, K (e.g., subject scores), on J variables in K different samples. We introduce a factor model for the J × J covariance matrices , k = 1,…, K, where the common part is modelled by Parafac2 and the unique variances , k = 1,…, K, are diagonal. The Parafac2 model implies a common loadings matrix that is rescaled for each k, and a common factor correlation matrix. We estimate the unique variances by minimum rank factor analysis on for each k. The factors can be chosen orthogonal or oblique. We present a novel algorithm to estimate the Parafac2 part and demonstrate its performance in a simulation study. Also, we fit our model to a data set in the literature. Our model is easy to estimate and interpret. The unique variances, the factor correlation matrix and the communalities are guaranteed to be proper, and a percentage of explained common variance can be computed for each k. Also, the Parafac2 part is rotationally unique under mild conditions.  相似文献   
857.
Contrary to economic theory, psychological research has demonstrated increased choice can undermine satisfaction. When and why this ‘excess choice effect’ (ECE) occurs remains unclear. Building on theories of counterfactual thinking we argue the ECE is more likely to occur when people experience counterfactual thought or emotion and that a key trigger is a negative versus positive task outcome. Participants either selected a drink (Experiment 1) or chocolate (Experiment 2) from a limited (6) versus extensive (24) selection (Experiment 1) or were given no choice versus extensive (24) choice (Experiment 2). In both experiments, however, the choice was illusory: Half the participants tasted a ‘good’ flavour, half a ‘bad’ flavour. As predicted, extensive choice was only detrimental to satisfaction when participants tasted the ‘bad’ drink or chocolate, and this was mediated by the experience of counterfactual thought (Experiment 1) or emotion (Experiment 2). When outcomes were positive, participants were similarly satisfied with limited versus extensive and no choice versus extensive choice. Implications for our theoretical understanding of the ECE and for the construction of choice architectures aimed at promoting individual satisfaction and well‐being are discussed.  相似文献   
858.
859.
The review written by (Costa et al. 2016) summarises a broad range of topics associated with what is known about the psychosocial outcomes of cancer in patients and their families. This commentary supplements this review by expanding on three topics that were not covered in the review. First, the challenges in assessing and diagnosing anxiety, depression, and distress in cancer patients due to overlapping symptoms with the disease state are highlighted. Second, the contribution of biological pathways such as inflammation upon the genesis and maintenance of anxiety, depression, and distress is acknowledged. Third, the potential role of religion and spirituality in influencing the psychosocial outcomes of cancer is raised. These three points are used to emphasise the importance of firmly incorporating a biopsychosocial model in research and health‐care provisions with cancer patients and their families.  相似文献   
860.
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