全文获取类型
收费全文 | 20853篇 |
免费 | 772篇 |
国内免费 | 33篇 |
出版年
2020年 | 251篇 |
2019年 | 258篇 |
2018年 | 519篇 |
2017年 | 472篇 |
2016年 | 615篇 |
2015年 | 402篇 |
2014年 | 350篇 |
2013年 | 1463篇 |
2012年 | 842篇 |
2011年 | 924篇 |
2010年 | 430篇 |
2009年 | 423篇 |
2008年 | 561篇 |
2007年 | 591篇 |
2006年 | 516篇 |
2005年 | 1756篇 |
2004年 | 1052篇 |
2003年 | 847篇 |
2002年 | 521篇 |
2001年 | 545篇 |
2000年 | 492篇 |
1999年 | 390篇 |
1998年 | 212篇 |
1997年 | 160篇 |
1996年 | 172篇 |
1995年 | 169篇 |
1994年 | 174篇 |
1992年 | 305篇 |
1991年 | 294篇 |
1990年 | 307篇 |
1989年 | 274篇 |
1988年 | 252篇 |
1987年 | 259篇 |
1986年 | 242篇 |
1985年 | 239篇 |
1984年 | 215篇 |
1983年 | 183篇 |
1982年 | 157篇 |
1979年 | 219篇 |
1978年 | 145篇 |
1975年 | 176篇 |
1974年 | 199篇 |
1973年 | 223篇 |
1972年 | 190篇 |
1971年 | 171篇 |
1970年 | 144篇 |
1969年 | 153篇 |
1968年 | 199篇 |
1967年 | 151篇 |
1966年 | 159篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
121.
Mark R. Wiederanders 《Behavioral sciences & the law》1992,10(1):141-148
Postinstitutional arrests and state hospitalizations of 191 patients placed on conditional release (CONREP group) were compared to those of 44 patients released from the same California state hospital with no aftercare due to expiration of commitment terms (MAXOUT group). The two groups were not randomly determined but were comparable in demographic characteristics and rates of preprogram arrest. The CONREP group had a significantly lower community-period arrest rate than did the MAXOUT group (p <.001). Survival rate analyses, using time until arrest and time until revocation as dependent variables, suggested that revocations during the first 240 days of community re-entry reduced the potential arrest rate within the CONREP group. Results were discussed in terms of the “criminalization hypothesis” as well as the crime-preventive possibilities of the conditional release mechanism. 相似文献
122.
N G Bliwise 《Psychology and aging》1992,7(1):83-88
Elderly women in subjectively good health--free of acute illness and major sleep pathologies--who were self-identified as good (n = 22) and poor (n = 16) sleepers were compared on measures of physical health, psychological symptoms, psychosocial status, and life-style. Poor sleepers reported longer sleep latencies, less total sleep time, more nonrestorative sleep, and more daytime fatigue than did good sleepers. Sleep recordings confirmed subjective reports, with shorter total sleep times and trends for lower sleep efficiency, longer sleep latencies, and more wake-after-sleep onset among women with subjective poor sleep. Poor sleepers also were more frequent users of sedative-hypnotic medications in the past. Current medication use, alcohol and caffeine use, daytime napping, and exercise were equivalent in both groups. Psychosocial status failed to discriminate groups. Poor sleepers reported significantly more psychological symptoms than did good sleepers. The levels of both psychological symptoms and sleep disturbance were mild. 相似文献
123.
A MOTIVATIONAL ANALYSIS OF EMOTION: Reflex-Cortex Connections 总被引:1,自引:0,他引:1
124.
John W. Schuster Ed.D. Ann K. Griffen B.S. Mark Wolery Ph.D. 《Journal of Behavioral Education》1992,2(3):305-325
Simultaneous prompting (a type of antecedent prompt and test procedure) and constant time delay were compared with four students with moderate mental retardation learning expressive sight words. A parallel treatments design across word sets and replicated across students was used. For acquisition, the simultaneous prompting procedures required fewer trials, sessions, and training time to criterion and resulted in fewer student errors during daily probe and training sessions. However, maintenance data indicated mixed results across the two procedures. Reliability data (both dependent and independent variables) revealed no differences between the two procedures in terms of the teacher's accuracy in recording student responses and implementing each procedure. Future research issues are discussed. 相似文献
125.
A survey of the 37 psychology departments offering courses accredited by the Australian Psychological Society yielded a 92% response rate. Sixty-eight percent of departments employed students as research subjects, with larger departments being more likely to do so. Most of these departments drew their student subject pools from introductory courses. Student research participation was strictly voluntary in 57% of these departments, whereas 43% of the departments have failed to comply with normally accepted ethical standards. It is of great concern that institutional ethics committees apparently continue to condone, or fail to act against, unethical research practices. Although these committees have a duty of care to all subjects, the final responsibility for conducting research in an ethical manner lies with the individual researcher. 相似文献
126.
127.
Raymond G. Miltenberger Jan Larson Mark Doerner Laurie Orvedal 《Behavioral Interventions》1992,7(1):23-34
Direct care and supervisory staff in five residential training programs for persons with mental retardation in North Dakota rated the acceptability of six staff management procedures. Overall, staff rated “Instructions”, “Instructions and Modeling”, “Feedback and Praise”, and “Instructions, Feedback, and Praise”, as significantly more acceptable than “Self-Management” and “Self-Management, Feedback and Praise”. There was a significant group by treatment interaction in which supervisors and direct care staff had significantly different acceptability rating for four of the six procedures. The results were further analyzed by group and implications and future research are discuessed. 相似文献
128.
Daniel D. Houlihan Robert N. Jones Howard N. Sloane Joni Cook 《Behavioral Interventions》1992,7(1):71-77
This brief report proposes an extension of the traditional Alternating Treatments Design that would be acceptable to use in hospital and residential settings where subjects are often not concurrently available. Concerns about the inability of traditional designs to work in these special situations and the emergence of a “scientist–practitioner split” are discussed. An example of how the Extended Alternating Treatments Design might be used is provided. 相似文献
129.
We examined two systems of assessing family interactions that are in common usage: a home based observation of free parent-child interaction and a clinic based observation of a structured mother-child problem solving discussion. Participants were 18 depressed, 27 conduct disordered and 16 comparison children and their mothers. Results indicated that: 1) these observations may yield very different data about child, and to a lesser extent, parent behavior, 2) parental affect in the clinic was related to their level of aversive behaviour in the home, 3) levels of both aversive and positive behavior for children and their mothers were correlated within each setting, 4) accuracy of diagnostic classifications made on the basis of the observational data were highest for comparison and conduct disordered children, but lowest for depressed children observed in the clinic, and 5) the inclusion of data on mothers' behavior increased classification accuracy for conduct disordered children only. 相似文献
130.
In this paper, we describe a method to study the sequential structure in interevent times. The technique uses the stored information of an iterative map developed by-Shaw (1984). The stored information is a quantitative measure of the sequential organization or predictability in data. This paper discusses the concept of stored information and provides a FORTRAN routineto compute the stored information of interevent time data. Several synthetic data sets with known sequential structures are examined. Finally, we present some initial results from computing the stored information of experimental interresponse time data. 相似文献