全文获取类型
收费全文 | 13126篇 |
免费 | 1257篇 |
国内免费 | 34篇 |
专业分类
14417篇 |
出版年
2020年 | 115篇 |
2019年 | 153篇 |
2018年 | 170篇 |
2017年 | 195篇 |
2016年 | 253篇 |
2015年 | 171篇 |
2014年 | 218篇 |
2013年 | 1295篇 |
2012年 | 389篇 |
2011年 | 456篇 |
2010年 | 381篇 |
2009年 | 439篇 |
2008年 | 451篇 |
2007年 | 508篇 |
2006年 | 469篇 |
2005年 | 417篇 |
2004年 | 412篇 |
2003年 | 443篇 |
2002年 | 396篇 |
2001年 | 270篇 |
2000年 | 222篇 |
1999年 | 244篇 |
1998年 | 252篇 |
1997年 | 207篇 |
1996年 | 256篇 |
1995年 | 222篇 |
1994年 | 235篇 |
1993年 | 197篇 |
1992年 | 227篇 |
1991年 | 223篇 |
1990年 | 190篇 |
1989年 | 196篇 |
1988年 | 176篇 |
1987年 | 170篇 |
1986年 | 168篇 |
1985年 | 170篇 |
1984年 | 177篇 |
1983年 | 164篇 |
1982年 | 210篇 |
1981年 | 187篇 |
1980年 | 174篇 |
1979年 | 149篇 |
1978年 | 175篇 |
1977年 | 166篇 |
1976年 | 163篇 |
1975年 | 153篇 |
1974年 | 160篇 |
1973年 | 161篇 |
1972年 | 144篇 |
1968年 | 126篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
61.
Two experiments are reported which investigated how subject gender and time-of-day influenced the estimation of duration and
the perception of task-related mental workload. In the first experiment, 24 subjects performed a filled time-estimation task
in a constant blacked-out, noise-reduced environment at 0800h, 1200h, 1600h, and 2000h, respectively. In the second experiment,
12 different subjects performed an unfilled time estimation task in similar conditions at 0900h, 1400h, and 1900h. At the
termination of all experimental sessions, participants completed the NASA Task Load Index workload assessment questionnaire
as a measure of perceived mental workload. Results indicated that physiological response, reflected in body temperature change,
followed an expected pattern of sequential increase with time-of-day. However, estimates of duration and the perception of
mental workload showed no significant effects for time-of-day. In each of the experiments there were significant differences
in time estimation and mental workload response contingent on the gender of the participant. These results are interpreted
in light of the previous positive findings for circadian fluctuation in performance efficiency and the equivocal findings
of a gender difference in time estimation. A unifying account of these collective results is given based on gender by time-of-day
interactional effects.
An earlier version of this paper was presented at the 32nd Annual Meeting of the Human Factors Society, Anaheim, CA, October,
1988. 相似文献
62.
63.
This study sought to investigate the effects of mild head injury on a particular type of cognitive ability, verbal analogical
reasoning. The performance of 19 individuals with head injuries was compared to a group of 30 control subjects matched for
age, education, and gender on 100 verbal analogies. Solution times and error rates were modeled. Unstandardized regression
weights for individual subjects were correlated with subjects’ performance on a number of standardized ability tests. Results
showed that compared to the control subjects, the head injured subjects: (a) were significantly slower to solve the analogies,
and were particularly slow to perform certain processes: encoding/inference and comparison; (b) tended to show greater variability
in performance; and (c) had data that had a poorer componential model fit. The data suggest that analogical reasoning is affected
by a head injury, and that certain information processes may be responsible for performance deficits. 相似文献
64.
Psychological knowledge from eye-witness research is applied here to the particular problem of reporting road accidents. Thereby
the paper highlights some of the assumptions in eye-witness research. The interface between that research and the reporting
of road accidents is examined by reference to existing social psychological notions. These are notions about questioning and
about hypothesis testing. The paper makes special reference to the questioning of child witnesses because problems therein
are particularly acute. 相似文献
65.
Robert J. Fetsch 《Journal of counseling and development : JCD》1992,71(2):192-193
The author developed a practical, effective way of teaching people how to refocus their energy from predicaments to problems and thereby reduce their stress levels. Feedback about using the technique was positive. Benefits and limitations are discussed. 相似文献
66.
Contemporary research on the construction of the self emphasizes the products rather than the process of self-development.
Borrowing from the writings of William James and contemporary views of natural selection, we propose a model ofevolutionary self-construction. Grounded in the principles of evolution and the philosophy of pragmatism, evolutionary self-construction proposes a process
that guides the seeking of “truth” inpossible selves. According to this view, the self develops in response to uncertainty reduction with the “correct” self identified
via the “sentiment of rationality.” Selves presently identified as correct are considered to be “instruments of action” that
facilitate the interaction between an individual and the environment. Selected selves can then be developed to one’s best
advantage and presented in an optimal fashion. This model helps organize contemporary frameworks around a common theme and
embraces affect as a central component in the development of the self.
A previous version of this paper was presented at the 98th annual meeting of the American Psychological Association, Boston,
MA. 相似文献
67.
Robert T. Carter Janet E. Helms 《Journal of multicultural counseling and development》1992,20(4):181-201
Helms (1984) presented a model to explain the influence of Black and White racial identity development on counseling interactions. The purpose of this study was to examine her hypothesis that specific combinations of racial identity attitudes contribute to qualitatively different counseling process and outcome or relationship types. 相似文献
68.
Edgar J. Nottingham IV Robert A. Neimeyer 《Journal of Rational-Emotive & Cognitive-Behavior Therapy》1992,10(2):57-81
Mental health practitioners are faced with a profound challenge surrounding the prevalence of adult mental disorders, the need for inpatient treatment programs, and the costs of such programs. This paper describes the development of an adult inpatient psychiatric program based on Rational-Emotive Therapy. Specific elements of this program are described briefly, and preliminary outcome data presented on 372 patients. Concerns and future directions are also discussed. Development of adult inpatient psychiatric programs based on Rational-Emotive Therapy would appear to be one method of providing effective and cost-efficient treatment within the current cost-containment atmosphere of psychiatric treatment.Dr. Nottingham is an Associate Fellow and Approved Supervisor of the Institute for Rational-Emotive Therapy. He is in independent practice with Germantown Psychological Associates, P.C. and is Director of Psychology at Parkwood Hospital, Olive Branch, MS. Dr. Neimeyer is an Associate Professor and Director of Clinical Training in the Department of Psychology of Memphis State University. He has written extensively in the areas of cognitive and constructivist psychotherapy, and is co-editor of the International Journal of Personal Construct Psychology.The authors would like to thank Kat Bagley, Joe Grillo, Ivey Bright, Brooke Bensen, Cathy Michas, Brad Barris, Lori Passmore, David Wilkins, and Dee Conrad for their help with data collection. Additionally, without the assistance and support of the Parkwood Hospital administration and staff, neither this treatment program nor this paper could have been developed.Portions of this paper based on earlier data analyses were presented at the Mississippi Psychological Association Convention, September, 1990. This research was conducted at Parkwood Hospital. 相似文献
69.
When genetics is considered in diathesis-stress models of psychopathology, it is often assumed that heredity provides the diathesis and environmental factors are responsible for the stressor. We discuss two quantitative genetic models relevant to the diathesis-stress construct. One model focuses on genotype-environment interaction, which is the usual way in which genetic influence is represented in diathesis-stress models. A second model—genotype-environment correlation—provides an alternative that represents both genetic and environmental influences relevant to the development of psychopathology. Implications of these models for clinical research are discussed. 相似文献
70.
WHEN PREDICTIONS CREATE REALITY: 总被引:3,自引:0,他引:3
Abstract —Nelson and Dunlosky (Psychological Science, July 1991) reported that subjects making judgments of learning (JOLs) can be extremely ac curate at predicting subsequent recall performance on a paired-associate task when the JOL task is delayed for a short while after study They argued that this result Is surprising given the results of earlier research, as well as their own current experiment, indicating that JOLs are quite inaccurate when made immediately after study We note that the delayed-JOL procedure used by Nelson and Dunlosky invited covert recall practice (which was reported by their subjects) Retrieval practice is a welt-known determinant of subsequent recall Accordingly, Nelson and Dunlosky s findings can be explained by the simple assumption that people base delayed JOLs on an assessment of retrieval success which in turn influences their retrieval success on the subsequent recall test 相似文献