全文获取类型
收费全文 | 39925篇 |
免费 | 886篇 |
国内免费 | 6篇 |
出版年
2020年 | 219篇 |
2019年 | 347篇 |
2018年 | 3801篇 |
2017年 | 3148篇 |
2016年 | 2596篇 |
2015年 | 462篇 |
2014年 | 470篇 |
2013年 | 1832篇 |
2012年 | 1173篇 |
2011年 | 3047篇 |
2010年 | 2867篇 |
2009年 | 1906篇 |
2008年 | 2297篇 |
2007年 | 2731篇 |
2006年 | 594篇 |
2005年 | 688篇 |
2004年 | 668篇 |
2003年 | 568篇 |
2002年 | 501篇 |
2001年 | 527篇 |
2000年 | 614篇 |
1999年 | 388篇 |
1998年 | 272篇 |
1997年 | 216篇 |
1996年 | 213篇 |
1995年 | 188篇 |
1992年 | 307篇 |
1991年 | 309篇 |
1990年 | 326篇 |
1989年 | 296篇 |
1988年 | 291篇 |
1987年 | 261篇 |
1986年 | 279篇 |
1985年 | 283篇 |
1984年 | 230篇 |
1983年 | 240篇 |
1982年 | 183篇 |
1980年 | 183篇 |
1979年 | 271篇 |
1978年 | 235篇 |
1977年 | 175篇 |
1975年 | 227篇 |
1974年 | 253篇 |
1973年 | 277篇 |
1972年 | 233篇 |
1971年 | 214篇 |
1969年 | 202篇 |
1968年 | 256篇 |
1967年 | 245篇 |
1966年 | 210篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
941.
The children of the handicapped frequently need counseling to help them cope with the consequences of their parents' handicaps. Parental handicaps typically lead to modifications in parenting behavior and family structure that may be perceived as deficiencies. Kennedy and Bush discuss the child's reaction to parental handicap in the context of object loss and attachment. Evidence suggests that the children of the handicapped are overrepresented among those who are in some way maladjusted or in need of counseling. This article focuses on multiple sclerosis in parents, including its impact on children, suggested interventions, and a case study. 相似文献
942.
Richard F. Dillon 《Behavior research methods》1979,11(2):234-240
Seven basic forms of structured flow of control, sequential execution, IF-THEN-ELSE, DO-WHILE, REPEAT-UNTIL, SELECT-CASE, ITERATIVE-DO, and LOOP-EXITIF-ENDLOOP, are described. The application of the forms is illustrated with examples of typical problems from the psychology laboratory. The feasibility of implementing the basic forms is demonstrated by showing how they have been incorporated in a high-level language for controlling human learning, memory, and perception experiments. 相似文献
943.
Earl F. Brown 《Behavior research methods》1979,11(6):553-557
The conversion of speech into on-off pulse patteras representing talk spurts and pauses is a major tool used by psychologists in analyzing interactive communications behavior. We describe a conversion method and a means for interfacing its output with a computer, which allows the collection of large amounts of speech data from one or more sources. The major improvement over prior art is the ability to reject cross talk between neighbor speakers while permitting the detection of simultaneous speech. In the evaluation of the performance of the apparatus, no errors were detected for single-party speaking. Infrequent small errors occurred in the detection and duration of talk spurts and pauses during two- and three-party speaking, but these would probably be acceptable in most applications. 相似文献
944.
Andrew W. Young Andrew W. Ellis 《Quarterly journal of experimental psychology (2006)》1979,31(2):263-272
Three experiments are reported in which blindfolded right-handed adults felt numerical stimuli with the middle fingers of their left or right hands. These stimuli consisted of collections of raised dots in random arrangement to be enumerated (Experiment I), collections of evenly spaced raised dots in a straight line to be enumerated (Experiment II), and raised digits to be identified (Experiment III). Differences between hands were only found in Experiment I. The left hand was faster, apparently reflecting specialisation of the right cerebral hemisphere for the analysis of complex spatial stimuli. A fourth experiment, in which collections of raised dots in random arrangement to be enumerated were felt through a piece of cloth by subjects who were not blindfolded, confirmed the left hand superiority and demonstrated that it had not arisen from loss of sight of the movements of the dominant hand. 相似文献
945.
Janat F. Parker 《International journal of psychology》1977,12(4):243-252
This investigation compared the free recall of concrete and abstract words in American and Ghanaian college students. There were no differences in the total number of words recalled as a function of concreteness or culture. However, recall of concrete words showed a greater improvement across trials for both cultures. Although there was no difference in the amounts of subjective organization exhibited by Ghanaian and American students, there was evidence for a greater serializing tendency among American students. It appears that the major cultural differences typically observed in African-American comparisons of free recall may be overshadowed by increases in the educational level of the subjects. 相似文献
946.
947.
The training of family therapists requires that learning objectives and expectations be specified in empirical terms so that the trainer and trainee can achieve clear goals, identify areas of progress, and meet the special needs of the trainee. This paper articulates the competencies, objectives, and criteria for evaluation used during a time-limited training program for therapists involved in family therapy research conducted at Centennial School of Lehigh University. 相似文献
948.
Open classrooms with few rules, individualized instruction, and informal class organization present new problems for the application of behavior principles. The effects of three types of teacher aides on student achievement and on-task behavior were studied. Each was compared with a standard no-aide condition. Subjects were 54 third graders in two "open"-style classrooms. The three types of aide, helping adult, disciplinary adult, and helping fifth-grade aide, were compared in a multi-element design with a no-aide control. The helping-adult aide significantly affected the academic output of the class, when compared with the no-aide condition. All aide conditions produced more academic work and on-task behavior than did the standard no-aide condition. 相似文献
949.
Monetary payments, energy information, and daily feedback on consumption were employed to reduce electricity use in four units of a university student housing complex. A combined multiple-baseline and withdrawal design permitted both within- and between-unit comparisons. Payments produced immediate and substantial reductions in consumption in all units, even when the magnitude of the payments was reduced considerably. Feedback also produced reductions, but information about ways to conserve and about the cost of using various appliances did not. It was also found that, in general, payments combined with either information or feedback produced no greater effect than payments alone. 相似文献
950.