全文获取类型
收费全文 | 3698篇 |
免费 | 250篇 |
国内免费 | 2篇 |
专业分类
3950篇 |
出版年
2023年 | 41篇 |
2022年 | 32篇 |
2021年 | 44篇 |
2020年 | 95篇 |
2019年 | 131篇 |
2018年 | 140篇 |
2017年 | 164篇 |
2016年 | 151篇 |
2015年 | 109篇 |
2014年 | 140篇 |
2013年 | 489篇 |
2012年 | 187篇 |
2011年 | 220篇 |
2010年 | 118篇 |
2009年 | 139篇 |
2008年 | 190篇 |
2007年 | 136篇 |
2006年 | 146篇 |
2005年 | 129篇 |
2004年 | 143篇 |
2003年 | 125篇 |
2002年 | 109篇 |
2001年 | 43篇 |
2000年 | 48篇 |
1999年 | 27篇 |
1998年 | 42篇 |
1997年 | 39篇 |
1996年 | 36篇 |
1995年 | 23篇 |
1994年 | 21篇 |
1993年 | 15篇 |
1992年 | 29篇 |
1991年 | 20篇 |
1990年 | 22篇 |
1989年 | 21篇 |
1988年 | 21篇 |
1987年 | 25篇 |
1986年 | 27篇 |
1985年 | 25篇 |
1984年 | 32篇 |
1983年 | 33篇 |
1982年 | 23篇 |
1981年 | 17篇 |
1980年 | 28篇 |
1979年 | 21篇 |
1978年 | 16篇 |
1977年 | 20篇 |
1976年 | 18篇 |
1975年 | 8篇 |
1974年 | 13篇 |
排序方式: 共有3950条查询结果,搜索用时 0 毫秒
81.
This study was designed with two purposes in mind: (1) to measure the effectiveness of Holland's Self-Directed Search for Educational and Vocational Planning (SDS); and (2) to test the validity of Goodstein's (Theories of Counseling. B. Stefflure, Ed., 1965) hypothesis that career indecision and indecisiveness are differentially related to anxiety and vocational maturity. A total of 66 high school males and 60 high school females were randomly assigned to experimental and control groups and tested for anxiety and vocational maturity levels; the experimental subjects were given the SDS. Statistical analysis indicated that the SDS was an effective instrument in reducing career indecision; Goodstein's hypothesis was not supported by the results of the study. 相似文献
82.
Two recurring problems hampering investigations of muscular activity patterns during locomotion are electrical “noise” and movement artifact in the electromyographic (EMG) signal and proper synchronization of behavioral events to the EMG. A relatively simple technique for achieving these ends is presented. Vigorous locomotor movements of unrestrained animals are recorded on 16-mm film and synchronized with one or more EMGs from selected muscles with little electrical noise or movement artifact interference. The system employs telemetry which is compared to hardwire techniques. 相似文献
83.
Andrew R. Davidson James J. Jaccard Harry C. Triandis Maria Luisa Morales Rogelio Diaz-Guerrero 《International journal of psychology》1976,11(1):1-13
A model for the prediction of behavior from attitudinal components, developed by Triandis, was tested with samples of U.S. and Mexican women, and with fertility relevant behaviors. The elements of the model are etic, but the operationalizations of the various variables were done emically. Results support the model in both cultures. While the predictive utility of the model is equivalent in two cultures, there are social class differences on which component of the model is most emphasized. The U.S. upper-middle-class sample and the Mexican upper-middle-class sample emphasized the person's attitude toward the act, while the Mexican lower SES (socio-economic status) sample emphasized the person's normative beliefs (moral obligations). 相似文献
84.
Ronald E Smith John P Keating Reid K Hester Herman E Mitchell 《Journal of research in personality》1976,10(3):346-357
This study was designed to assess the extent to which social role and “just world” considerations would affect perceptions and attributions of responsibility to a rape victim. The rape victim was either a topless-bottomless dancer, a social worker, or a Catholic nun, and she was either acquainted or unacquainted with her assailant. In the acquainted condition, the dancer was attributed the greatest and the nun the least amount of responsibility, indicating that social role factors can govern the range of attributional judgments which might be made in any given instance. However, unacquainted victims were ascribed more responsibility for the rape than were acquainted victims, a difference which was significant when the victim was the nun. The latter findings are discussed in terms of Lerner's just world hypothesis. Significant sex differences were found in subjects' perceptions of and responses to the rape incident and, contrary to earlier findings, no relationship was found between victim attractiveness and punitiveness toward the wrongdoer. 相似文献
85.
86.
Jason T Siegel Eusebio M Alvaro William D Crano Andrew Lac Sarah Ting Sara Pace Jones 《Health psychology》2008,27(2):170-178
OBJECTIVE: Approximately 6,000 Americans die every year awaiting an organ transplant. Health promotion interventions may alleviate the shortage of viable organs by increasing the number of registered organ donors. This study is the first to evaluate the differential effectiveness of various organ donor messages in naturalistic settings. DESIGN: A 4 (Appeal)x4 (Exemplar)x4 (Location) counterbalanced quasi-experimental design was implemented. MAIN OUTCOME MEASURE: The behavioral outcome measure was the number of individuals who registered to be organ donors at computer kiosks. RESULTS: A number of significant main effects and interactions emerged. Most notably, of the 4 different appeals (counterargument, emotional, motivating action, dissonance), counterargument was by far the most efficacious, especially in academic-type settings (library, university, community college); the emotional appeal was most successful in hospitals. CONCLUSIONS: The findings from this study have implications for both organ donor investigations and health campaign research in general. Statistical interactions highlight the importance of evaluating multiple exemplars in multiple locations for each type of appeal when conducting health campaign research. 相似文献
87.
88.
89.
90.