首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   7101篇
  免费   113篇
  7214篇
  2023年   54篇
  2020年   158篇
  2019年   94篇
  2018年   101篇
  2017年   164篇
  2016年   174篇
  2015年   142篇
  2014年   186篇
  2013年   877篇
  2012年   190篇
  2011年   211篇
  2010年   161篇
  2009年   203篇
  2008年   179篇
  2007年   198篇
  2006年   171篇
  2005年   154篇
  2004年   156篇
  2003年   157篇
  2002年   179篇
  2001年   84篇
  2000年   71篇
  1999年   80篇
  1998年   101篇
  1997年   112篇
  1996年   117篇
  1995年   109篇
  1994年   99篇
  1993年   126篇
  1992年   121篇
  1991年   101篇
  1990年   92篇
  1989年   89篇
  1988年   81篇
  1987年   89篇
  1986年   74篇
  1985年   62篇
  1984年   83篇
  1983年   83篇
  1982年   99篇
  1981年   90篇
  1980年   101篇
  1979年   92篇
  1978年   121篇
  1977年   118篇
  1976年   84篇
  1975年   107篇
  1974年   84篇
  1973年   60篇
  1971年   60篇
排序方式: 共有7214条查询结果,搜索用时 15 毫秒
151.
Based on the recruitment experience in a family therapy research project with heroin addicts, this paper explores the difficulties of researcher networking with other social service agencies. Concepts from contextual family therapy are used to explore four general areas that contribute to successful intra-agency relationships: 1) Evaluating the nature of larger system relationships; 2) identifying the resources and needs of a clinic; 3) joining with the counseling staff; and 4) addressing the impact of public policy and ideology on clinic life. A case of engaging one clinic is presented and nine guidelines for engaging large community settings for participation in family therapy research are offered. These areas are considered in light of the relational dynamics that arise when working with multiple social service systems.An earlier version of this paper was presented at the American Family Therapy Association conference in Washington, DC, June 1986. The authors are grateful to the recruitment staff of the Intergenerational Family Therapy Project: Guillermo Lopez, Bart Rubin, Sharara Godfry, and Armando Chenyek. This research was supported in part by a grant to Guillermo Bernal from the National Institute on Drug Abuse (DA03543).  相似文献   
152.
153.
The midlife phase in the marital relationship is a complicated transition period, challenging the flexibility and coping skills of every couple. Separation-Divorce Initiation (S/DI) at this time can serve a special function in the change process required in this stage. A comprehensive therapeutic model for S/DI couples is described. It includes (1) assessment of the relationship's stamina and the function of the S/DI; (2) treating symptoms and reactions to the traumatic event in an emergency intervention mode; (3) steps and techniques to help the couple overcome the traumatic effects of the SD/I and to rebuild their relationship on a more appropriate basis.  相似文献   
154.
A software program written to collect real-time, observational data is described. The flexible program allows customized behavior codes and observational durations and simultaneously records both timed and counted events. The data are collected by means of single keystrokes, automatically stored to disk with 100th of a second resolution and summarized for each observational session. The program’s database files are dBASE III PLUS compatible and may be browsed, edited, or converted to ASCII files from the program’s main menu. Field testing demonstrated the efficiency and interobserver reliability of the program (for frequency,r=0.81; for durational behaviors,rs=0.89 and 0.96). The software operates on IBM XT/AT/PS 2s and most clones with PC/MS DOS version 2.0 or greater.  相似文献   
155.
When measuring the same variables on different occasions, two procedures for canonical analysis with stationary compositing weights are developed. The first, SUMCOV, maximizes the sum of the covariances of the canonical variates subject to norming constraints. The second, COLLIN, maximizes the largest root of the covariances of the canonical variates subject to norming constraints. A characterization theorem establishes a model building approach. Both methods are extended to allow for Cohort Sequential Designs. Finally a numerical illustration utilizing Nesselroade and Baltes data is presented.The authors wish to thank John Nesselroade for permitting us to use the data whose analysis we present.  相似文献   
156.
The factorial validity and internal consistency reliability of the Devereux Elementary School Behavior Rating Scale was examined using a random sample of elementary-school children in grades I through 6. Teacher ratings of subjects' classroom behaviors on the Devereux approximated ratings obtained by the standardization sample. Internal consistency (coefficient alpha) reliability coefficients of the 11 Devereux subscales were found to be quite adequate, ranging from 80 to 93. Intercorrelations among Devereux subscales were moderate to high. A principal factor analysis of the 11 subscales produced two factors with eigenvalues greater than 1.0, which cumulatively accounted for 70.2% of the total variance. When rotated via an orthogonal (Varimax) solution, the two resultant factors appeared to measure emotional adjustment and academic related dimensions of classroom behavior. Given the problem of multicollinearity that was shown to exist among subscales, the authors suggest caution in the interpretation of Devereux subscales as discrete factors.The authors gratefully acknowledge computer support funding provided by the University of Wisconsin, Graduate School Research Committee Grant 135-1537 to the first author.  相似文献   
157.
As part of a longitudinal study, a control group of 85 children were tested on the WPPSI at 512 years and the WISC-R at 1612 years. Educational attainment was also assessed in adolescence. Data are presented illustrating the long-term predictive validity of the WPPSI. The Full Scale IQs on the two tests intercorrelated +0.86.  相似文献   
158.
To determine the relative effectiveness of instructions designed to reduce sex discrimination in employment interviews, 96 students rated resumes for both a male and a female applicant. In one instructional condition subjects were told the specific requirements necessary for success on the job. In a second condition subjects were warned that it was illegal to discriminate on the applicant's sex. A third condition received both instructions, and a fourth received neither. Results revealed a series of interactions suggesting that the use of legal warning alone tended to increase the ratings of male applicants in some cases and influenced how male evaluators rated all applicants in other cases. The major implications were that legal warnings may actually bias ratings in favor of male applicants and may occasionally lead male evaluators to make lenient ratings. The specification of job requirements was suggested as a viable method of reducing discrimination.This work was supported in part by funds from the Foundation of the University of North Carolina at Charlotte and from the State of North Carolina. The author wishes to thank P. S. Siegfried, J. Thomas Puglisi, and an anonymous reviewer for their comments and revisions of an earlier draft.  相似文献   
159.
In three experiments, subjects were asked to memorize related phrase pairs and then to produce one of these phrases from a cue. In Experiment 1, it was found that both memorization times and response latencies increased with the number of words that differed between the phrases. In Experiment 2 and 3, it was shown that the presence of a strong modifying or semantic relationship between words in one phrase influenced both memorization time and response latency when those same words were contrasted between the two phrases. The implications of the results for models of storage, retrieval, and planning of speech are considered.  相似文献   
160.
This study was designed to determine (a) what dimensions underlie emotional reactions to news events, (b) whether these dimensions are independent, (c) whether reactions to major news events are similar for different groups of people, and (d) whether a simple method could be developed for evaluating emotional reactions to news events. Subjects rated the similarity of their emotional reactions to 20 page-one newspaper stories in a paired-comparison task. The data were multidimensionally scaled using the KYST computer program. Two dimensions emerged that accounted for 89% of the judgment variance: pleasure/displeasure and degree of arousal. Interpretation of these dimensions was verified using a semantic differential task. The two dimensions were not independent. They were related by a U-shaped function: News events farther from evaluative neutrality were judged more arousing. A second study with 40 news events and a different subject population replicated these findings. Subjects' ratings of news events on three scales (happy, important, and exciting) were sufficient to recover the KYST dimensions. The theoretical and practical implications of these. results are discussed.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号