全文获取类型
收费全文 | 85675篇 |
免费 | 3470篇 |
国内免费 | 37篇 |
专业分类
89182篇 |
出版年
2020年 | 1013篇 |
2019年 | 1210篇 |
2018年 | 1688篇 |
2017年 | 1776篇 |
2016年 | 1821篇 |
2015年 | 1304篇 |
2014年 | 1574篇 |
2013年 | 7201篇 |
2012年 | 2893篇 |
2011年 | 2897篇 |
2010年 | 1795篇 |
2009年 | 1802篇 |
2008年 | 2549篇 |
2007年 | 2554篇 |
2006年 | 2287篇 |
2005年 | 1971篇 |
2004年 | 1957篇 |
2003年 | 1856篇 |
2002年 | 1820篇 |
2001年 | 2749篇 |
2000年 | 2580篇 |
1999年 | 1978篇 |
1998年 | 934篇 |
1997年 | 843篇 |
1996年 | 887篇 |
1995年 | 832篇 |
1994年 | 806篇 |
1993年 | 815篇 |
1992年 | 1652篇 |
1991年 | 1500篇 |
1990年 | 1539篇 |
1989年 | 1420篇 |
1988年 | 1430篇 |
1987年 | 1324篇 |
1986年 | 1323篇 |
1985年 | 1327篇 |
1984年 | 1138篇 |
1983年 | 1026篇 |
1979年 | 1221篇 |
1978年 | 883篇 |
1975年 | 980篇 |
1974年 | 1095篇 |
1973年 | 1146篇 |
1972年 | 937篇 |
1971年 | 887篇 |
1970年 | 778篇 |
1969年 | 805篇 |
1968年 | 1012篇 |
1967年 | 907篇 |
1966年 | 799篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
181.
John W. Schuster David L. Gast Mark Wolery Sharon Guiltinan 《Journal of applied behavior analysis》1988,21(2):169-178
The effectiveness of a 5-s constant time-delay procedure to teach three chained food preparation behaviors to four moderately retarded adolescent students was evaluated within a multiple probe design across behaviors. Results indicate that the procedure was effective in teaching all four students to make a sandwich, boil a boil-in-bag item, and bake canned biscuits. The skills maintained with at least 85% accuracy over a 3-month period. Training generalized from the school to the home setting for the 2 subjects that completed generalization probe sessions. The percentage of errors across all skills and students was less than 9%. 相似文献
182.
Evidence increasingly links a high-fat, low-fiber diet to coronary heart disease and certain site cancers, indicating a need for large-scale dietary change. Studies showing the effectiveness of particular procedures in specific settings are important at this point. The present study, using an A-B-A-B design and sales data from computerized cash registers, replicated and extended previous work by showing that inexpensive prompts (i.e., signs and fliers) in a national fast-food restaurant could increase the sales of salads, a low-fat, high-fiber menu selection. Suggestions also are made pertinent to more widespread use of the procedures. 相似文献
183.
Brenda L. Dawson D. Balfour Jeffrey James A. Walsh 《Journal of applied social psychology》1988,18(16):1353-1360
This study investigated the effect of television food commercials on children's self-control within a resistance to temptation paradigm. Commercial type, food stimulus type, and the child's sex provided the three independent variables in a 4 × 4 × 2 factorial design. Behavioral and self-report indices of temptation and control were measured. Children were significantly more tempted to transgress for the low-nutrition food, regardless of the commercial shown. Sex differences in reported degree of temptation were found. However, the television commercials did not affect the children's latency to transgress. 相似文献
184.
Jack L. Powell 《Journal of applied social psychology》1988,18(9):760-773
The knew-it-all-along effect is investigated by comparing pre- and post-election predictions of subjects concerning three electoral races in the November 1984 elections. The results revealed that when the outcomes of the predictions are known, subjects recall having assigned higher probabilities and percentages to the actual winners of each election, remember having more confidence in the accuracy of these percentages, and claim to have had more knowledge of the candidates than they had before the election. The results were consistent across all three elections and in both repeated-measures and between-pups designs, suggesting that the knew-it-all-along effect is a very robust one. Two underlying processes are hypothesized to account for these results: the availability heuristic and an increase in confidence explanation. 相似文献
185.
Inexperienced beer-drinkers who could not pass a beer-flavor discrimination test were divided into a taste group, which received additional perceptual experience with beer flavors; a verbal group, which received instruction in beer flavor terminology; a taste/verbal group, which received both additional experience and instruction; and a control group. Before and after training, all subjects participated in a similarity rating task involving beer flavors and flavor-related adjectives. Additional taste experience--but not increased experience with beer-flavor terminology--improved novices' ability to detect identical beer flavors. Results are discussed in terms of the trainability of flavor discrimination and the role of cognitive factors (both flavor-related and flavor-independent) in marketing beverages. 相似文献
186.
The effect of mood and pleasant versus unpleasant information feedback on performing a motor skill 总被引:1,自引:0,他引:1
M H Anshel 《The Journal of general psychology》1988,115(2):117-129
The effect of negative, positive, or neutral feedback on a rotary pursuit task as a function of the subject's depressed or elated mood was ascertained. Specifically, the self-schema hypothesis was examined. Ninety female volunteers, ranging in age from 18 to 25 years, participated. They were randomly assigned to one of eight conditions based on depressed or elated mood states, elicited by Velten's (1968) mood induction procedure, and feedback. A control group received no feedback and was not subjected to a mood inducing treatment. Baseline measures and changes in mood were determined by the Multiple Adjective Affective Checklist (MAACL). Bogus feedback was offered after all but one of the trials. The subjects' mood changed significantly during the mood-inducing treatment. For motor performance, partial support was lent to self-schema. Elated and depressed subjects performed best under positive and negative feedback, respectively. The effects, however, were temporary. 相似文献
187.
Thirty pediatricians and 30 parents were interviewed on (a) how and when children develop concepts about death, (b) children's emotional responses to the thought of death, (c) the possibility of dialogue between adults and children about death, and (d) differences in healthy and seriously ill children's conceptualization of death. Pediatricians were no different than parents in their opinions. Moreover, in some cases, less educated parents and older doctors tended to hold opinions that were even farther from reality. Overall, the results suggest that children, healthy or sick, are left alone with the problem of death and are not helped either by their parents or by their doctors. 相似文献
188.
In this study the authors compared women's and men's reactions to various professional travel situations. A multivariate analysis of covariance was used to determine the effects of sex, professional role, and years traveling on the perceptions of these travel situations. 相似文献
189.
Training in systemic therapy necessitates a structured approach to teaching systemic thinking. The Systemic Therapy Sessions Summary Form, a record-keeping method, is presented as a tool for enhancing training in systemic therapy. The purpose of this form is to provide the structure for the trainee to develop circular hypotheses, to connect reflexively the assessment and intervention components of therapy, and to maintain a sense of the evolving nature of therapy across sessions. A case example illustrates the use of this record-keeping format. 相似文献
190.
This article presents a conceptual framework for individual treatment with chronic anorectic patients. In the first part of the article, the six-stage model for the anorectic process developed over the past years by M. Selvini-Palazzoli and her team is briefly explained. After presenting the model, we then discuss some related concepts, namely, "family game," "rule," and "strategy." Finally, the therapeutic technique in individual treatment is discussed. Two basic assumptions underlie this technique: first, the therapeutic relationship is instrumental, its main purpose being to improve the patient's personal relations outside therapy; second, the focus of the treatment is on the strategic incapacity of the patient who is caught up in and unable to cope with the "concealed family game." 相似文献