全文获取类型
收费全文 | 33194篇 |
免费 | 1401篇 |
国内免费 | 29篇 |
出版年
2020年 | 364篇 |
2019年 | 458篇 |
2018年 | 628篇 |
2017年 | 619篇 |
2016年 | 708篇 |
2015年 | 451篇 |
2014年 | 578篇 |
2013年 | 2656篇 |
2012年 | 1060篇 |
2011年 | 1081篇 |
2010年 | 632篇 |
2009年 | 708篇 |
2008年 | 918篇 |
2007年 | 924篇 |
2006年 | 810篇 |
2005年 | 715篇 |
2004年 | 710篇 |
2003年 | 648篇 |
2002年 | 671篇 |
2001年 | 1076篇 |
2000年 | 1096篇 |
1999年 | 809篇 |
1998年 | 346篇 |
1997年 | 325篇 |
1995年 | 341篇 |
1992年 | 657篇 |
1991年 | 607篇 |
1990年 | 590篇 |
1989年 | 563篇 |
1988年 | 559篇 |
1987年 | 507篇 |
1986年 | 510篇 |
1985年 | 561篇 |
1984年 | 472篇 |
1983年 | 436篇 |
1982年 | 329篇 |
1979年 | 500篇 |
1978年 | 348篇 |
1977年 | 337篇 |
1976年 | 347篇 |
1975年 | 399篇 |
1974年 | 465篇 |
1973年 | 496篇 |
1972年 | 414篇 |
1971年 | 351篇 |
1970年 | 326篇 |
1969年 | 346篇 |
1968年 | 428篇 |
1967年 | 383篇 |
1966年 | 367篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
191.
A stratified random sample of college student affairs divisions was surveyed to assess the depth and breadth of student paraprofessional use. More than 72% of the responding institutions reported having one or more student paraprofessional programs. 相似文献
192.
JO ANN C. ALEXANDER ROBERT L. HARMAN 《Journal of counseling and development : JCD》1988,66(6):283-285
The authors discuss the application of Gestalt theory as a means of dealing with the surviving classmates of a student who committed suicide. 相似文献
193.
A recent clinical study of outpatient psychotherapy groups in a community mental health center explored the linkage between group leadership variables, group climate, and outcome. The study involved nine outpatient therapy groups, over 50 group clients, and several group therapists. A repeated measures design involving assessment of clients' outcome and level of functioning, group leadership style, and group climate was used to assess changes over a 6-month period. The findings suggest: 1) a reduction in symptoms and improved functioning for clients; 2) a similarity of perceptions by members and leaders of perceived leadership behaviors and group climate; 3) the presence of direct and indirect influences of group climate and leadership behavior on clients' outcome; and 4) a linkage between leadership behavior and group climate with the theoretical orientation of the group. The findings of the research are discussed in relation to the understanding of specific effects in group psychotherapy and the implications for construction of group psychotherapy theory.The authors would like to thank Robert Dies, Ph.D., for his helpful suggestions in the early phase of this study; Roy MacKenzie, M.D., for permission to use the Group Climate Questionnaire; Diane DePalma, Ph.D., for permission to use the Global Leadership Behavior Index; Chris Boltwood, B.A., for her untiring efforts in administering the instruments and coding and entering the data; and most importantly, the psychotherapy group members and the group therapists for their cooperation in this endeavor—without their help, this clinical study would not have been possible.A version of this paper was presented at the Annual Meeting of the American Group Psychotherapy Association, 1987, New Orleans, Louisiana. Lenore Phipps, R.N., M.S., C.S., was formerly Director, Group Psychotherapy Program at Park Ridge Mental Health Center, Rochester, now in private practice at Guild Medical Center, Norwood, MA 02062. 相似文献
194.
Roger A. Kendall 《Behavior research methods》1988,20(2):129-136
A hardware-and-software system is described that permits musical-bandwidth signal quantization, monophonic or stereophonic, direct to/from hard disk. The system, which uses an IBM AT or compatible, is cost effective and device independent. Software functions allow for automated aural and graphical signal analyses. Perceptual experiments that use contextual, natural-instrument stimuli, and that take advantage of the immediate and random access provided by this system, are described. 相似文献
195.
This paper describes a method of establishing time intervals at a precision of better than 1 msec, using QuickBASIC 4.0, for running real time experiments on an IBM PC without an 8087 coprocessor. This method is far superior to the TIMER function provided by BASIC, which has a precision of only 110 msec. Also described is an assembly language subroutine that corrects a problem in QuickBASIC 3.0 and QuickBASIC 4.0 to allow proper switching between screens in the CGA text mode for use of the PC as a tachistoscope. A tachistoscope program listing shows how to use the screen subroutine and how to establish intertriai intervals and record reaction times using the timing subroutines. 相似文献
196.
A computer-controlled system that detects spontaneous activity (locomotion and rearing) and diurnal activity rhythms in small animals is described. Automatic recording of subtotals during test periods provides data about habituation (nonassociative learning). The system is relatively inexpensive to construct. Fabricated from highly reliable circuit components, it provides replicable measures that enable comparisons between different experimental treatments to be made using parametric statistics. 相似文献
197.
We outline a BASIC program and subsidiary machine language timing routines that enable the Apple II series of computers to be employed as control devices for the tachistoscopic presentation of 35-mm slides and the collection of response latencies. The program is functional for experiments that require pictorial stimuli to be presented in up to three separate fields, with precise display times, precise interstimulus and intertriai intervals, and the collection of manual or vocal reaction times with millisecond accuracy. The major advantages of this system are that initial setup costs are substantially lower than those for other similar systems (e.g., Loftus, Gillispie. Tigre, & Nelson, 1984) and that user customization of the program may be accomplished by anyone possessing rudimentary knowledge of the BASIC programming language. 相似文献
198.
199.
Thirty children and 5 adults participated in two experiments designed to compare visual processing in normal and reading disabled children. The children were aged 8, 10, and 12 years. In Experiment 1, subjects were asked to detect the temporal order of two briefly presented stimuli. In Experiment 2, subjects sorted cards containing bracket stimuli that did or did not produce perceptual grouping effects. Poor readers required more time to make accurate temporal order judgments and showed stronger perceptual grouping effects. For both good and poor readers, the amount of time necessary to make a correct temporal order judgment decreased, and perceptual grouping effects became weaker with age. However, the magnitude of the difference between the groups did not lessen with age. These results suggest that there are visual processing differences between good and poor readers that do not appear to correct by age 12. 相似文献
200.
Differences in school behavior and achievement between students from intact, reconstituted, and single-parent families were analyzed. Students from intact two-parent families had fewer absences and tardies, higher grade point averages, and fewer negative and more positive teacher behavioral ratings than did those from reconstituted and single-parent families. 相似文献