全文获取类型
收费全文 | 21467篇 |
免费 | 834篇 |
国内免费 | 5篇 |
专业分类
22306篇 |
出版年
2019年 | 288篇 |
2018年 | 349篇 |
2017年 | 309篇 |
2016年 | 357篇 |
2015年 | 241篇 |
2014年 | 376篇 |
2013年 | 1830篇 |
2012年 | 579篇 |
2011年 | 666篇 |
2010年 | 404篇 |
2009年 | 443篇 |
2008年 | 558篇 |
2007年 | 618篇 |
2006年 | 556篇 |
2005年 | 491篇 |
2004年 | 519篇 |
2003年 | 483篇 |
2002年 | 499篇 |
2001年 | 533篇 |
2000年 | 571篇 |
1999年 | 413篇 |
1998年 | 294篇 |
1997年 | 254篇 |
1996年 | 241篇 |
1995年 | 239篇 |
1993年 | 239篇 |
1992年 | 365篇 |
1991年 | 353篇 |
1990年 | 360篇 |
1989年 | 344篇 |
1988年 | 333篇 |
1987年 | 308篇 |
1986年 | 308篇 |
1985年 | 318篇 |
1984年 | 271篇 |
1983年 | 285篇 |
1982年 | 246篇 |
1980年 | 239篇 |
1979年 | 320篇 |
1978年 | 314篇 |
1977年 | 241篇 |
1976年 | 227篇 |
1975年 | 311篇 |
1974年 | 320篇 |
1973年 | 323篇 |
1972年 | 272篇 |
1971年 | 266篇 |
1968年 | 278篇 |
1967年 | 271篇 |
1966年 | 238篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
51.
We examined the functional role of verbalizations in the generalization of self-instructional training with preschoolers. Children learned to overtly self-instruct during classroom work periods prior to covert training. Data were collected on children's acquisition of verbal regulation during training and on overt use of self-instructions in the classroom generalization setting. Results of a multiple baseline design across subjects indicated that treatment effects were evident in the training setting but did not generalize to the classroom until children were emitting overt self-instructions in the classroom itself. The production of self-verbalizations in the generalization setting was related to changes in correct responding, on-task behavior, and efficiency in completing academic work. 相似文献
52.
F. Charles Mace Michael L. Hock Joseph S. Lalli Barbara J. West Phillip Belfiore Elizabeth Pinter D. Kirby Brown 《Journal of applied behavior analysis》1988,21(2):123-141
Behavioral momentum refers to the tendency for behavior to persist following a change in environmental conditions. The greater the rate of reinforcement, the greater the behavioral momentum. The intervention for noncompliance consisted of issuing a sequence of commands with which the subject was very likely to comply (i.e., high-probability commands) immediately prior to issuing a low-probability command. In each of five experiments, the high-probability command sequence resulted in a “momentum” of compliant responding that persisted when a low-probability request was issued. Results showed the antecedent high-probability command sequence increased compliance and decreased compliance latency and task duration. “Momentum-like” effects were shown to be distinct from experimenter attention and to depend on the contiguity between the high-probability command sequence and the low-probability command. 相似文献
53.
54.
55.
56.
57.
Robert A. Caldwell G. Anne Bogat William S. Davidson II 《American journal of community psychology》1988,16(5):609-624
A frequently advocated strategy for increasing the efficiency of child abuse prevention programs is to deliver prevention services to "high-risk" populations. This article critically reviews procedures for the reliable and valid assessment of child abuse potential within an ecological perspective. Factors that limit the usefulness of child abuse risk assessment are discussed. These factors include the uncertain criteria of child abuse and neglect, the low base rate of the phenomenon, and the financial and social costs of such procedures. Finally, the prevention implications of the current and future state of the art in child abuse risk assessment are considered and preventive interventions that do not depend on individual case risk screening are advocated. 相似文献
58.
H. O. F. Veiel G. Brill H. Hafner R. Welz 《American journal of community psychology》1988,16(6):839-861
The social support patterns of a sample of 101 suicide attempters were compared with the patterns of a control sample on the basis of structured interview data. Network characteristics and the extent of support in different functional categories were examined as to their absolute and relative power to discriminate between the suicide attempters and the controls. A clear separation of the functions of kin and of friends/acquaintances emerged. The crucial difference between the attempters and the controls lay in the number of friends with whom the subjects had agreeable everyday interactions and in the number of kin that provided crisis support, both psychological and instrumental. Other support differences between the two groups were of secondary importance. While there was no overall difference in the frequency of social interactions between the two groups, the size of the social network differed greatly. Consequences for the conceptualization and measurement of social support as well as for the prevention of suicidal behavior are discussed. 相似文献
59.
The concept of heightened resilience or invulnerability in young profoundly stressed children is developed in terms of its implications for a psychology of wellness and for primary prevention in mental health. Relevant literature is reviewed, a skeletal model for studying resilience is outlined, and needed research directions are considered. The latter include expansion of the construct's nomological definitional net, inquiry into the antecedents and determinants of resilience, and the application of such generative information to frame preventive interventions for young, profoundly stressed children. 相似文献
60.
Two studies investigated biases in the use of base rate information when assessing the probability of a witness' accurate identification of a white or West Indian as a burglar. An adapted version of the Kahneman-Tversky cab problem was used, to provide a social decision in which biases could be measured against some normative standard. Ethnicity of youth (white/West Indian) and nature of base rate (incidental/causal) were manipulated in a 2 × 2 between-subjects design. A significant interaction effect revealed that subjects took no account of the base rate for a West Indian subject, but used the base rate only when it was causal and the youth was white. This ‘prejudice effect’ against a West Indian youth and ‘exoneration effect’ for a white youth were replicated in a second study, using a microcomputer and chronometric analyses. Results are discussed in terms of heuristic decision-making, social schemata, and the cognitive versus motivational bases of bias in the use of base rates. 相似文献