全文获取类型
收费全文 | 3477篇 |
免费 | 169篇 |
国内免费 | 7篇 |
出版年
2023年 | 51篇 |
2022年 | 41篇 |
2021年 | 66篇 |
2020年 | 96篇 |
2019年 | 87篇 |
2018年 | 161篇 |
2017年 | 154篇 |
2016年 | 144篇 |
2015年 | 84篇 |
2014年 | 109篇 |
2013年 | 392篇 |
2012年 | 236篇 |
2011年 | 257篇 |
2010年 | 155篇 |
2009年 | 62篇 |
2008年 | 214篇 |
2007年 | 164篇 |
2006年 | 165篇 |
2005年 | 79篇 |
2004年 | 85篇 |
2003年 | 57篇 |
2002年 | 59篇 |
2001年 | 50篇 |
2000年 | 74篇 |
1999年 | 39篇 |
1998年 | 20篇 |
1997年 | 19篇 |
1992年 | 23篇 |
1991年 | 20篇 |
1990年 | 46篇 |
1989年 | 29篇 |
1988年 | 16篇 |
1987年 | 28篇 |
1986年 | 32篇 |
1985年 | 24篇 |
1984年 | 22篇 |
1983年 | 16篇 |
1982年 | 9篇 |
1981年 | 11篇 |
1979年 | 13篇 |
1978年 | 12篇 |
1975年 | 15篇 |
1974年 | 17篇 |
1973年 | 21篇 |
1972年 | 14篇 |
1971年 | 19篇 |
1970年 | 15篇 |
1968年 | 11篇 |
1967年 | 11篇 |
1966年 | 9篇 |
排序方式: 共有3653条查询结果,搜索用时 15 毫秒
971.
Tishby O Turel M Gumpel O Pinus U Lavy SB Winokour M Sznajderman S 《Adolescence》2001,36(142):249-264
This study investigated the willingness of Israeli adolescents to seek help for emotional and health problems, and their preference for various helping agents. Nearly fifteen hundred students in grades 7-12 participated in a comprehensive survey of attitudes, health status, and concerns, and the data were analyzed. Gender and age were identified as factors associated with help-seeking attitudes. Females reported a higher level of distress and greater willingness to seek help than did males. Younger adolescents tended to state that they would turn to parents for help, whereas older adolescents increasingly preferred peers. In general, the adolescents preferred to seek help from family and peers for emotional and social problems, rather than turning to professionals. Adolescents in grades 9-10 reported the highest level of distress and were least willing to seek help for interpersonal problems and depressed mood. Overall, level of distress was not directly related to willingness to seek help. In subgroups of depressed and suicidal adolescents, an inverse relationship was found between willingness to seek help and levels of depression and suicidal ideation. Recommendations for health care services and counseling programs are discussed. 相似文献
972.
973.
Dissociating retention and access in working memory: an age-comparative study of mental arithmetic 总被引:4,自引:0,他引:4
In two experiments, young and older adults solved arithmetic chain tasks with single-digit operands, with or without a concurrent memory load of three or six digits. Variables in the arithmetic tasks had to be replaced by digits from the screen or from the memory set. A task-irrelevant concurrent load impaired neither speed nor accuracy of arithmetic in younger adults. In Experiment 2, this was also true for older adults. A large decrease in arithmetic performance was observed, however, when variables in the arithmetic task had to be substituted by digits from the memory list. Older adults had specific problems with this condition in Experiment 1, where the substitution involved two successive steps, but not in Experiment 2, where the substitution from memory could be done in a single step. The results are difficult to reconcile with models assuming a common resource for storage and processing. Rather, they are compatible with the hypothesis that a concurrent memory load interferes with a processing task only during the points of access to working memory. Further, even though access to working memory was found to be the critical source of concurrent-load interference, it was found to be insensitive to the effects of adult aging. 相似文献
974.
Böckenholt U 《心理学方法》2001,6(1):49-66
The method of paired comparisons belongs to a small group of techniques that provide explicit information about the consistency of individual and aggregated choices. This article investigates the link between the individual- and group-level judgments by extending R. D. Luce's (1959) model, which was originally developed for individual choice behavior, to a mixed-effects paired comparison model. It is shown that standard multilevel software for binary data can be used to estimate the model. The interpretation of the paired comparison parameters and statistical model tests are discussed in detail. An extensive analysis of an experimental study illustrates the usefulness of a hierarchical approach in modeling multiple pairwise judgments. 相似文献
975.
The present study examined adolescents' wisdom-related knowledge and judgment with a heterogeneous sample of 146 adolescents (ages 14-20 years) and a comparison sample of 58 young adults (ages 21-37 years). Participants responded to difficult and ill-defined life dilemmas; expert raters evaluated these responses along 5 wisdom criteria. Our findings confirmed that in contrast to adulthood, adolescence is a major period for normative age-graded development in knowledge about difficult life problems. Adolescents performed at lower levels than young adults but also demonstrated substantial age increments in performance. As expected, adolescents' performance varied as a function of criterion and gender. These results hold implications for research on adolescent development and for the development of wisdom-related knowledge and judgment. 相似文献
976.
Risk as feelings 总被引:41,自引:0,他引:41
Virtually all current theories of choice under risk or uncertainty are cognitive and consequentialist. They assume that people assess the desirability and likelihood of possible outcomes of choice alternatives and integrate this information through some type of expectation-based calculus to arrive at a decision. The authors propose an alternative theoretical perspective, the risk-as-feelings hypothesis, that highlights the role of affect experienced at the moment of decision making. Drawing on research from clinical, physiological, and other subfields of psychology, they show that emotional reactions to risky situations often diverge from cognitive assessments of those risks. When such divergence occurs, emotional reactions often drive behavior. The risk-as-feelings hypothesis is shown to explain a wide range of phenomena that have resisted interpretation in cognitive-consequentialist terms. 相似文献
977.
Primary versus secondary insomnia in older adults: subjective sleep and daytime functioning 总被引:4,自引:0,他引:4
Most psychological research on insomnia has centered on primary insomnia (PI). Secondary insomnia (SI), though more common than PI, has received little attention because of its presumed unresponsiveness to treatment. The present study recruited older adults with PI, SI, and a comparison group of older adults with no insomnia (NI). Self-report assessments of sleep revealed no significant difference between the 2 insomnia groups. Daytime functioning measures found significant differences in impairment between the 3 groups with SI having the worst daytime functioning, followed by PI, which was worse than NI. Further analyses found substantial independence between sleep and daytime functioning. Implications of these findings for the clinical management of SI are discussed. 相似文献
978.
E Wascher U Schatz T Kuder R Verleger 《Journal of experimental psychology. Human perception and performance》2001,27(3):731-751
Three experiments were conducted to determine whether spatial stimulus-response compatibility effects are caused by automatic response activation by stimulus properties or by interference between codes during translation of stimulus into response coordinates. The main evidence against activation has been that in a Simon task with hands crossed, responses are faster at the response location ipsilateral to the stimulus though manipulated by the hand contralateral to the stimulus. The experiments were conducted with hands in standard and in crossed positions and electroencephalogram measures showed coactivation of the motor cortex induced by stimulus position primarily during standard hand positions with visual stimuli. Only in this condition did the Simon effect decay with longer response times. The visual Simon effect appeared to be due to specific mechanisms of visuomotor information transmission that are not responsible for the effects obtained with crossed hands or auditory stimuli. 相似文献
979.
It is argued that children need to learn about civic issues intheir education because certain virtues are required for a decently organisedsociety. It is also argued that the school has wide obligations to educate theyoung in civics because it is in their best interests. This is not seen asan encroachment on the privacy of the individual. It is explained that theschool has an obligation to impart knowledge to the young. 相似文献
980.
Ohne Zusammenfassung 相似文献