全文获取类型
收费全文 | 786篇 |
免费 | 99篇 |
国内免费 | 141篇 |
专业分类
1026篇 |
出版年
2024年 | 1篇 |
2023年 | 29篇 |
2022年 | 19篇 |
2021年 | 29篇 |
2020年 | 49篇 |
2019年 | 57篇 |
2018年 | 40篇 |
2017年 | 45篇 |
2016年 | 33篇 |
2015年 | 22篇 |
2014年 | 39篇 |
2013年 | 111篇 |
2012年 | 40篇 |
2011年 | 40篇 |
2010年 | 25篇 |
2009年 | 34篇 |
2008年 | 41篇 |
2007年 | 54篇 |
2006年 | 50篇 |
2005年 | 39篇 |
2004年 | 35篇 |
2003年 | 22篇 |
2002年 | 35篇 |
2001年 | 16篇 |
2000年 | 10篇 |
1999年 | 18篇 |
1998年 | 10篇 |
1997年 | 2篇 |
1996年 | 7篇 |
1995年 | 10篇 |
1994年 | 8篇 |
1993年 | 9篇 |
1992年 | 7篇 |
1991年 | 6篇 |
1990年 | 2篇 |
1989年 | 2篇 |
1988年 | 6篇 |
1987年 | 2篇 |
1986年 | 2篇 |
1985年 | 2篇 |
1984年 | 3篇 |
1982年 | 1篇 |
1981年 | 2篇 |
1980年 | 3篇 |
1979年 | 5篇 |
1978年 | 4篇 |
排序方式: 共有1026条查询结果,搜索用时 15 毫秒
231.
232.
从湖南两所大学选取297名大学生为被试,采用定性研究的方法探讨大学生友伴选择的影响因素,并制定友伴选择标准调查问卷,然后再从湖南一所大学选取1166名大学生为被试,采用定量研究的方法对大学生友伴选择标准及其友伴数量、友伴关系质量之间的关系进行调查。结果发现:大学生在友伴选择标准方面可以归为完美型、适度型和低要求型3种类型;不同类型在性别、年级、专业上的分布存在显著差异;适度型大学生的友伴数量显著多于完美型;完美型、适度型大学生在与友伴的帮助与支持、与友伴的冲突方面显著多于低要求型,完美型在与友伴的冲突强度上也显著大于低要求型。 相似文献
233.
Maria Nordfang 《Visual cognition》2018,26(4):285-298
In “hybrid” search, observers search a visual display for any of several targets held in memory. It is known that the contents of the memory set can guide visual search (e.g., if the memorized targets are all animals, visual attention can be guided away from signs). It is not known if the visual display can guide memory search (e.g., if the memory set is composed of signs and animals, can a visual display of signs restrict memory search to just the signs?). In three hybrid search experiments, participants memorized sets of items that belonged to either one or several categories. Participants were then presented with visual displays containing multiple items, also drawn from one or several categories. Participants were asked to determine if any of the items from their current memory set were present in the visual display. We replicate the finding that visual search can be guided by the contents of memory. We find weaker, novel evidence that memory search can be guided by the contents of the visual display. 相似文献
234.
235.
《Quarterly journal of experimental psychology (2006)》2013,66(10):1991-2013
When making inferences, people are often confronted with situations with incomplete information. Previous research has led to a mixed picture about how people react to missing information. Options include ignoring missing information, treating it as either positive or negative, using the average of past observations for replacement, or using the most frequent observation of the available information as a placeholder. The accuracy of these inference mechanisms depends on characteristics of the environment. When missing information is uniformly distributed, it is most accurate to treat it as the average, whereas when it is negatively correlated with the criterion to be judged, treating missing information as if it were negative is most accurate. Whether people treat missing information adaptively according to the environment was tested in two studies. The results show that participants were sensitive to how missing information was distributed in an environment and most frequently selected the mechanism that was most adaptive. From these results the authors conclude that reacting to missing information in different ways is an adaptive response to environmental characteristics. 相似文献
236.
《Quarterly journal of experimental psychology (2006)》2013,66(4):664-679
Under conditions of volitional control in multitask environments, subjects may engage in a variety of strategies to guide task selection. The current research examines whether subjects may sometimes use a top-down control strategy of selecting a task-irrelevant stimulus dimension, such as location, to guide task selection. We term this approach a stimulus set selection strategy. Using a voluntary task switching procedure, subjects voluntarily switched between categorizing letter and number stimuli that appeared in two, four, or eight possible target locations. Effects of stimulus availability, manipulated by varying the stimulus onset asynchrony between the two target stimuli, and location repetition were analysed to assess the use of a stimulus set selection strategy. Considered across position condition, Experiment 1 showed effects of both stimulus availability and location repetition on task choice suggesting that only in the 2-position condition, where selection based on location always results in a target at the selected location, subjects may have been using a stimulus set selection strategy on some trials. Experiment 2 replicated and extended these findings in a visually more cluttered environment. These results indicate that, contrary to current models of task selection in voluntary task switching, the top-down control of task selection may occur in the absence of the formation of an intention to perform a particular task. 相似文献
237.
《Journal of Cognitive Psychology》2013,25(2):125-133
The information gain model argues that participants select alternatives with a larger expected value of information gain. The present study investigated risk aversion in information seeking to examine whether the expected value always determines information-seeking behaviour. For this investigation, we used a scale method selection task in which participants were required to select one of two scales for weighing coins in order to find an underweight coin. Two experiments showed that participants more frequently selected the alternative that provided information gain without risk, although its expected information gain was smaller. This finding indicates the presence of risk aversion in information seeking, suggesting that information-seeking behaviour is affected by risk associated with obtaining information gain. 相似文献
238.
Recently, a multiple comparisons procedure was derived with the goal of determining whether it is reasonable to make a decision about which of J independent groups has the largest robust measure of location. This was done by testing hypotheses aimed at comparing the group with the largest estimate to the remaining J − 1 groups. It was demonstrated that for the goal of controlling the familywise error rate, meaning the probability of one or more Type I errors, well-known improvements on the Bonferroni method can perform poorly. A technique for dealing with this issue was suggested and found to perform well in simulations. However, when dealing with dependent groups, the method is unsatisfactory. This note suggests an alternative method that is designed for dependent groups. 相似文献
239.
儿童计算的元认知监测及其对策略选择的影响 总被引:2,自引:0,他引:2
为了考察儿童在计算中的元认知监测及其对策略选择的影响,选用两种实验材料,对五种元认知监测判断的特点及监测判断对策略选择的影响进行考察,发现:儿童的元认知监测判断等级值总体上具有较高的一致性,元认知监测判断大多与策略选择高度相关,具有较好的预测力,但受材料、指导语等因素影响,又呈现出复杂的关系。本研究从一个侧面证实了元认知监控的基本假说和元认知监测判断的状态说。 相似文献
240.
In the present investigation longitudinal data obtained from recruits undergoing basic military training in the Swiss Armed Forces were used to examine the effects of organizational citizenship behavior (OCB) on a subsequent cadre selection and the willingness to voluntarily pursue a career as militia cadre. Results of the hierarchical logistic regression controlling for demographic variables, cadre recommendation, and allocation to the desired branch of service showed OCB predicted both the selection as cadre and the voluntariness to pursue a career as militia cadre. These effects show to what extent OCB may predict significant additional effort. Results are discussed with regard to further examination of the effects of OCB on career outcomes and selection decisions. 相似文献