全文获取类型
收费全文 | 55748篇 |
免费 | 2331篇 |
国内免费 | 21篇 |
出版年
2020年 | 675篇 |
2019年 | 791篇 |
2018年 | 1129篇 |
2017年 | 1139篇 |
2016年 | 1197篇 |
2015年 | 855篇 |
2014年 | 1033篇 |
2013年 | 4822篇 |
2012年 | 1928篇 |
2011年 | 1928篇 |
2010年 | 1152篇 |
2009年 | 1183篇 |
2008年 | 1662篇 |
2007年 | 1626篇 |
2006年 | 1490篇 |
2005年 | 1234篇 |
2004年 | 1277篇 |
2003年 | 1222篇 |
2002年 | 1161篇 |
2001年 | 1921篇 |
2000年 | 1795篇 |
1999年 | 1341篇 |
1998年 | 616篇 |
1997年 | 528篇 |
1996年 | 606篇 |
1995年 | 550篇 |
1994年 | 542篇 |
1993年 | 526篇 |
1992年 | 1105篇 |
1991年 | 1017篇 |
1990年 | 995篇 |
1989年 | 957篇 |
1988年 | 934篇 |
1987年 | 862篇 |
1986年 | 857篇 |
1985年 | 903篇 |
1984年 | 729篇 |
1983年 | 627篇 |
1979年 | 758篇 |
1978年 | 562篇 |
1975年 | 601篇 |
1974年 | 680篇 |
1973年 | 701篇 |
1972年 | 605篇 |
1971年 | 561篇 |
1970年 | 483篇 |
1969年 | 479篇 |
1968年 | 610篇 |
1967年 | 531篇 |
1966年 | 506篇 |
排序方式: 共有10000条查询结果,搜索用时 125 毫秒
151.
Therapists have a mandate to bring about change, and family therapists appear to have unusual leverage to fullfill such a mandate, that is, to facilitate changes rapidly and effectively. Because and in spite of this mandate, the very notion of change deserves critical reflection. The history of ideas and our clinical experience teach us that changes may be problematic. They may come too fast or too slowly, may endure or fade away, may turn out to be desirable or undesirable, equitable or inequitable, and may, when further consequences and larger systems levels are taken into account, be beneficial or disastrous. This essay examines some of the problematical and contradictory aspects of change and delineates two perspectives on change--systemic optimism and systemic pessimism. 相似文献
152.
153.
Sabir A. Alvi Sar B. Khan M. Anwar Hussain Tahira BAIG 《International journal of psychology》1988,23(1-6):449-459
This paper combines the results of two studies across different cultures which included an investigation into the relationship between field-dependence-independence and vocational orientations within the framework of Holland's theory of career choice and Witkin's theory of psychological differentiation. The samples included 179 Canadian senior high school students and 376 Pakistani college and university students. Both samples were administered Self-Directed Search and Group Embedded Figures Test. The results indicated a significant relationship between cognitive styles and vocational orientations. It was evident from the findings of these two studies that the theories of Holland and Witkin dove-tail nicely with each other. 相似文献
154.
Depressed affect and time perception 总被引:1,自引:0,他引:1
155.
156.
M Baum 《Behaviour research and therapy》1988,26(2):185-186
157.
158.
M. W. Browne A. Shapiro 《The British journal of mathematical and statistical psychology》1988,41(2):193-208
The structure of the covariance matrix of sample covariances under the class of linear latent variate models is derived using properties of cumulants. This is employed to provide a general framework for robustness of statistical inference in the analysis of covariance structures arising from linear latent variate models. Conditions for normal theory estimators and test statistics to retain each of their usual asymptotic properties under non-normality of latent variates are given. Factor analysis, LISREL and other models are discussed as examples. 相似文献
159.
160.