全文获取类型
收费全文 | 25225篇 |
免费 | 1063篇 |
国内免费 | 19篇 |
出版年
2023年 | 136篇 |
2021年 | 230篇 |
2020年 | 423篇 |
2019年 | 508篇 |
2018年 | 669篇 |
2017年 | 642篇 |
2016年 | 734篇 |
2015年 | 500篇 |
2014年 | 670篇 |
2013年 | 2777篇 |
2012年 | 1136篇 |
2011年 | 1188篇 |
2010年 | 788篇 |
2009年 | 823篇 |
2008年 | 1122篇 |
2007年 | 1091篇 |
2006年 | 1055篇 |
2005年 | 930篇 |
2004年 | 927篇 |
2003年 | 910篇 |
2002年 | 883篇 |
2001年 | 418篇 |
2000年 | 409篇 |
1999年 | 397篇 |
1998年 | 377篇 |
1997年 | 361篇 |
1996年 | 291篇 |
1995年 | 306篇 |
1994年 | 291篇 |
1993年 | 275篇 |
1992年 | 261篇 |
1991年 | 257篇 |
1990年 | 239篇 |
1989年 | 218篇 |
1988年 | 193篇 |
1987年 | 213篇 |
1986年 | 209篇 |
1985年 | 256篇 |
1984年 | 268篇 |
1983年 | 231篇 |
1982年 | 234篇 |
1981年 | 256篇 |
1980年 | 225篇 |
1979年 | 209篇 |
1978年 | 222篇 |
1977年 | 195篇 |
1976年 | 197篇 |
1975年 | 158篇 |
1974年 | 180篇 |
1973年 | 140篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
151.
This article examines the hindsight bias in the context of mental health malpractice litigation, analyzes various legal mechanisms for dealing with the bias, and discusses whether the law should strive for debiasing in all mental health malpractice cases. 相似文献
152.
153.
Michael M. Granaas 《Behavior research methods》1989,21(6):619-622
Emerson (1988) provided a simple C-language timing routine for use with PC AT class machines. Unfortunately, this version of the timing routine makes use of nonstandard functions that are not available in all C-language packages. A modified version of this timing routine that does not make use of one of these nonstandard functions is provided. This version of TIMEX runs under the widely available Microsoft C 5.1. The need and availability of the remaining four nonstandard C functions is discussed. Constants needed to convert the timing routine units into seconds and milliseconds are also provided. 相似文献
154.
In this study, we describe the process of transforming neuron polarization values that meet the assumptions of ratio data into ordinal data. This is a crisp-to-fuzzy set transformation. A computerized simulation of the application of this process is discussed and nonparametric methods of analyzing fuzzy-set data are presented. 相似文献
155.
David A. Washburn William D. Hopkins Duane M. Rumbaugh 《Behavior research methods》1989,21(2):281-284
Researchers interested in studying discrimination learning in primates have typically utilized variations in the Wisconsin General Test Apparatus (WGTA). In the present experiment, a new testing apparatus for the study of primate learning is proposed. In the video-task paradigm, rhesus monkeys (Macaca mulatta) respond to computer-generated stimuli by manipulating a joystick. Using this apparatus, discrimination learning-set data for 2 monkeys were obtained. Performance on Trial 2 exceeded 80% within 200 discrimination learning problems. These data illustrate the utility of the video-task paradigm in comparative research. Additionally, the efficient learning and rich data that were characteristic of this study suggest several advantages of the present testing paradigm over traditional WGTA testing. 相似文献
156.
A typical psychophysical experiment presents a sequence of visual stimuli to an observer and collects and stores the responses for later analysis. Although computers can speed up this process, paint programs that allow one to prepare visual stimuli without programming cannot read responses from the mouse or keyboard, whereas BASIC and other programming languages that allow one to collect and store observer’s responses unfortunately cannot handle prepainted pictures. A new programming language called The Director provides the best of both worlds. Its BASIC-like commands can manipulate prepainted pictures, read responses made with the mouse and keyboard, and save these on disk for later analysis. A dozen sample programs are provided. 相似文献
157.
Jerry M. Lewis J. M. Rabbie Thomas Berg Michael Argyle Karin Aronsson Roger Ingham Neil Frude A. M. Munton Duncan Cramer John Shotter Ray Holland Nobleza Asuncion-Lande Ray Crozier Candida Peterson Chris Spencer Victor J. Callan Jack Martin N. L. Reinsch Anthony Ryle David Canter Jill Robson H. R. Beech Duncan Moss David Fontana Tom Richards 《Current psychology (New Brunswick, N.J.)》1989,8(1):49-87
158.
David Watkins James S. Fleming Maria Carmen A. Alfon 《International journal of psychology》1989,24(1-5):367-379
Shavelson's hierarchical, multifaceted self-concept model (HMFM) has proven useful to educational and psychological researchers. The reliability and factorial validity of a well-known HMFM instrument - the Fleming-Courtney Self-Rating Scales (SRS) - were examined for a sample of 198 Filipino college students. Confirmatory factor analysis compared six structural models. A six-factor, oblique model that included two social factors (Social Acceptance and Social Anxiety) fit the data best, and a second-order factor analysis supported the hierarchical structure of the SRS. The men were significantly higher than the women on three self-concept scales, but the only large effect was for Physical Abilities, consistent with findings in a U.S. college sample. Results provided some support for the utility of both the SRS and HMFM for Filipinos. 相似文献
159.
In the family violence literature, a number of risk markers associated with men's use of violence against women have been identified. Using the 1975 National Family Violence Survey, a multivariate analysis was performed to examine which risk markers best differentiated among nonviolent men, verbally aggressive men, men who exhibit minor physical violence, and severely physically violent men. High levels of marital conflict, lower socioeconomic status, and greater exposure to violent role models in the home of origin emerged as primary correlates of levels of violence between intimates. Theoretical and research implications are discussed. 相似文献
160.
Mark W. Steege David P. Wacker Wendy K. Berg Karla K. Cigrand Linda J. Cooper 《Journal of applied behavior analysis》1989,22(1):23-33
Behavioral assessment procedures were used to prescribe and evaluate treatments of maladaptive behavior for 2 children with severe multiple handicaps. In Experiment 1, the results of an assessment of reinforcer preference were used in conjunction with a functional analysis of the conditions maintaining self-injurious behavior to prescribe a treatment for a child with severe disabilities. The treatment procedure involved the use of a pressure-sensitive microswitch to activate reinforcing stimuli during two solitary conditions, during which self-injurious behavior had occurred at high rates. The results were evaluated with a multiple baseline across settings design and indicated that self-injury decreased with concomitant increases in microswitch activation. Results were maintained at 6 weeks, 8 weeks, and 6 months. In Experiment 2, the results of behavioral assessments of reinforcer preference and self-injurious behavior were combined to develop a treatment for a second severely handicapped child, who exhibited high rates of self-injury in demand situations. This treatment was evaluated with a multiple baseline across tasks design and resulted in the elimination of self-injury for up to 15 months. 相似文献