全文获取类型
收费全文 | 4773篇 |
免费 | 1465篇 |
出版年
2023年 | 17篇 |
2022年 | 22篇 |
2021年 | 101篇 |
2020年 | 124篇 |
2019年 | 434篇 |
2018年 | 322篇 |
2017年 | 437篇 |
2016年 | 427篇 |
2015年 | 390篇 |
2014年 | 342篇 |
2013年 | 742篇 |
2012年 | 344篇 |
2011年 | 254篇 |
2010年 | 302篇 |
2009年 | 267篇 |
2008年 | 237篇 |
2007年 | 151篇 |
2006年 | 146篇 |
2005年 | 165篇 |
2004年 | 128篇 |
2003年 | 140篇 |
2002年 | 143篇 |
2001年 | 93篇 |
2000年 | 80篇 |
1999年 | 58篇 |
1998年 | 30篇 |
1997年 | 31篇 |
1996年 | 25篇 |
1995年 | 9篇 |
1994年 | 15篇 |
1993年 | 15篇 |
1992年 | 23篇 |
1991年 | 11篇 |
1990年 | 11篇 |
1989年 | 11篇 |
1988年 | 15篇 |
1987年 | 13篇 |
1986年 | 12篇 |
1985年 | 15篇 |
1984年 | 9篇 |
1983年 | 15篇 |
1982年 | 15篇 |
1981年 | 12篇 |
1980年 | 5篇 |
1979年 | 8篇 |
1978年 | 8篇 |
1977年 | 11篇 |
1976年 | 9篇 |
1975年 | 7篇 |
1966年 | 4篇 |
排序方式: 共有6238条查询结果,搜索用时 31 毫秒
211.
Literature in the area of social networks indicates that increases in perceived social network attitudinal heterogeneity generate increased openness to attitude change. Recent evidence in the area of morality, however, shows that morally based attitudes are particularly resistant to persuasion and can result in the rejection of disagreeing others. Positing that considering morality would reduce network influence, an experiment varied moral cues presented along with a non‐network persuasive message while holding the actual content constant. Results demonstrate that morality and network composition interact to predict persuasion, such that when people are not cued to consider morality increased network heterogeneity predicts increased persuasion, but when identical messages are presented in a way that invokes morality the impact of network heterogeneity disappears or even reverses marginally. This interactive effect was replicated in two very different political issues: gay adoption and nationalized healthcare. Implications for persuasion by morally motivated sources independent of the effects of specific moral arguments are discussed. 相似文献
212.
The current study looked at two theoretical proposals explaining toddlers’ abilities to use cue information for recovering a hidden object that had rolled down a ramp behind an occluded screen. These two approaches, the theory of object directed attention and a landmark-based account, make different predictions regarding the efficacy of an obliquely aligned cue to object position. Accordingly, the search by forty 24-month olds, forty-two 30-month olds, and forty-one 36-month olds for a hidden toy that was cued using either a short versus a long cue, or a vertically aligned versus an obliquely aligned cue, were compared. Analyses of search accuracy revealed that children were more successful when faced with short as opposed to long cues, and when using vertical as opposed to oblique cues. These findings support a landmark-based approach, as opposed to an object-directed attention account, and are discussed with reference to their implications for spatial orientation more generally. 相似文献
213.
Marie J.C. Forgeard 《Personality and individual differences》2011,51(8):904-909
Past research on the relationship between affect and creativity has yielded contradictory results. Most of the evidence has tended to show that brief positive emotions as well as more enduring positive moods enhance creativity. No study to date, however, has attempted to determine whether the influence of momentary emotions on creativity depends on pre-existing moods. In the present study, 96 undergraduates completed one of two creative tasks (generating or evaluating captions for photographs) on three occasions, after watching videos designed to induce positive, neutral, or negative emotions. Participants also completed a questionnaire assessing depressed mood. Results confirmed that the effect of emotion inductions on creativity depended on pre-existing mood. Participants low in depression wrote more creative captions and rated captions more accurately with induced negative emotion than with induced positive emotion. In contrast, participants high in depression appeared impervious to the effect of emotion inductions. 相似文献
214.
Rendell PG Phillips LH Henry JD Brumby-Rendell T de la Piedad Garcia X Altgassen M Kliegel M 《Cognition & emotion》2011,25(5):916-925
Emotional factors have been found to be an important influence on memory. The current study investigated the influence of emotional salience and age on a laboratory measure of prospective memory (PM); Virtual Week. Thirty young and 30 old adults completed Virtual Week, in which the emotional salience of the tasks at encoding was manipulated to be positive, negative or neutral in content. For event-based, but not time-based tasks, positivity enhancement in both age groups was seen, with a greater number of positive PM tasks being performed relative to neutral tasks. There was no negativity enhancement effect. Older adults showed generally poorer levels of PM, but they also demonstrated greater beneficial effects of positive valence compared to young. These effects of emotion on PM accuracy do not appear to reflect the retrospective component of the task as a different pattern of emotion effects was seen on the recall of PM content. Results indicate that older adults' difficulties in prospective remembering can be reduced where the tasks to be remembered are positive. 相似文献
215.
Building a Committed Hospice Volunteer Workforce—Do Variables at the Experience Stage Matter?
下载免费PDF全文
![点击此处可从《Journal of community & applied social psychology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Claudia Schusterschitz Magdalena Flatscher‐Thöni Andrea M. Leiter‐Scheiring Willi Geser 《Journal of community & applied social psychology》2014,24(5):422-438
Volunteers are crucial to the survival of non‐profit organisations, who therefore have a fundamental interest in sustaining voluntary engagement over time. A central variable regarding sustained voluntary engagement is volunteers' organisational commitment, which has so far been a neglected research issue. The study at hand therefore explicitly focuses on hospice volunteers' commitment. Starting from the assumption that variables at the experience stage of volunteerism may be relevant in predicting volunteer commitment, questionnaire data on volunteers' motives, motive fulfilment and role identity were collected in a sample of hospice volunteers (N = 276). Results of multiple regression analyses show positive relationships between altruistic motive fulfilment and a volunteer role identity on the one hand and volunteer commitment on the other. Observed interaction effects imply that altruistic motive fulfilment is of importance both at the initial phase of volunteering and for long‐term volunteers. Moreover, interaction effects provide evidence that the fulfilment of egoistic motives is of particular importance amongst volunteers to whom egoistic motives are central. Thus, the fulfilment of altruistic motives and facilitating the development of a volunteer role identity should be permanent concerns in building a committed workforce. Egoistic motive fulfilment in contrast is of special relevance, when egoistic motives for volunteering are strong. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
216.
Consumers often encounter goods and services that provide cues to mark their progress. We define the term “goal progress cues” to reflect the diverse category of cues that highlight progress towards a goal. Across a series of three studies, we show that entity theorists, who rely on cues that highlight completion in order to signal their abilities to others, evaluate tasks that include these cues more favorably than those that lack these features. In contrast, incremental theorists, who focus on improving competence, are impacted only by progress cues that highlight learning. We demonstrate these findings across a variety of goal pursuit contexts that represent a mix of customer-centric (retail queues), service-oriented managerial (sales calls), and personal achievement consumer product (mazes) domains using both behavioral and self-reported measures. We conclude with a discussion about the theoretical and substantive implications of our findings. 相似文献
217.
Staci Martin Pamela L. Wolters Andrea Baldwin Marie Claire Roderick Mary Anne Toledo-Tamula Andrea Gillespie Brigitte Widemann 《Journal of genetic counseling》2014,23(5):796-804
Youth with neurofibromatosis type 1 (NF1) have multiple, complex symptoms associated with physical, social-emotional, and cognitive difficulties. In addition, caring for a child with NF1 can be extremely challenging for parents. Since research with other chronic illness populations suggests that social support, including internet support groups (ISGs), can be beneficial, this survey study aimed to determine the attitudes and preferences of adolescents and young adults with NF1 and parents of a child with NF1 regarding ISGs. Thirty patients and 30 caregivers completed a 24-item survey about ISGs. Many patients and parents are not aware of any ISGs for NF1, but are interested in using one in the future for a variety of reasons, including to get answers to their questions about NF1, to find out about research studies, and to discuss problems and concerns about NF1. Specific concerns of interest include physical, social-emotional, and cognitive aspects of NF1. ISGs have potential as a social support intervention within the NF1 community. ISGs for the NF1 population should include patients with NF1 (or parents of children with NF1) as well as a health professional, and both chat rooms and discussion boards likely would be well-received. 相似文献
218.
Parental maturity refers to parents’ ability to see their child as an independent adult with limitations and needs, and relate to him/her accordingly. In this study, we had two main aims: (a) develop a measure of parental maturity and test its construct validity in a sample of middle-aged parents with an emerging adult child, and (b) examine how the dimensions of parental maturity varied with a child’s gender and life course transitions (i.e., employment and leaving the parental home). A sample of 343 Portuguese parents (187 mothers and 156 fathers) aged 40–68 participated in this study. Factorial validity of the Parental Maturity Measure was tested using exploratory and confirmatory factor analyses and measurement invariance across mothers and fathers. Results gave support for a two-factor measure—Comprehending (6 items) and Letting Go (4 items)—with an equivalent meaning across parents. Dimensions of parental maturity were associated with differentiated and positive parent–child relationship qualities, but were quite independent of the child’s gender and life course transitions. 相似文献
219.
The presentation of a Bayesian inference problem in terms of natural frequencies rather than probabilities has been shown to enhance performance. The effect of individual differences in cognitive processing on Bayesian reasoning has rarely been studied, despite enabling us to test process-oriented variants of the two main accounts of the facilitative effect of natural frequencies: The ecological rationality account (ERA), which postulates an evolutionarily shaped ease of natural frequency automatic processing, and the nested sets account (NSA), which posits analytical processing of nested sets. In two experiments, we found that cognitive reflection abilities predicted normative performance equally well in tasks featuring whole and arbitrarily parsed objects (Experiment 1) and that cognitive abilities and thinking dispositions (analytical vs. intuitive) predicted performance with single-event probabilities, as well as natural frequencies (Experiment 2). Since these individual differences indicate that analytical processing improves Bayesian reasoning, our findings provide stronger support for the NSA than for the ERA. 相似文献
220.
The dual-use issue is often framed as a series of paralyzing ‘dilemmas’ facing the scientific community as well as institutions which support innovation. While this conceptualization of the dual-use issue can be useful in certain contexts (such as in awareness-raising and as part of educational activities directed at the scientific community) its usefulness is more limited when reflecting on the governance and politics of the dual-use issue. Within this paper, key shortcomings of the dilemma framing are outlined. It is argued that many of the issues raised in the most recent debates about ‘dual-use’ bird flu research remain unresolved. This includes questions about the trajectories of certain lines of research, as well as broader trends in the practice and governance of science. This leads to difficult questions about current approaches to the dual-use issue within the US, as well as internationally. 相似文献