全文获取类型
收费全文 | 7999篇 |
免费 | 1117篇 |
国内免费 | 584篇 |
出版年
2024年 | 45篇 |
2023年 | 212篇 |
2022年 | 221篇 |
2021年 | 269篇 |
2020年 | 495篇 |
2019年 | 417篇 |
2018年 | 359篇 |
2017年 | 386篇 |
2016年 | 398篇 |
2015年 | 325篇 |
2014年 | 354篇 |
2013年 | 973篇 |
2012年 | 268篇 |
2011年 | 353篇 |
2010年 | 226篇 |
2009年 | 345篇 |
2008年 | 338篇 |
2007年 | 346篇 |
2006年 | 358篇 |
2005年 | 308篇 |
2004年 | 239篇 |
2003年 | 216篇 |
2002年 | 197篇 |
2001年 | 179篇 |
2000年 | 158篇 |
1999年 | 142篇 |
1998年 | 120篇 |
1997年 | 112篇 |
1996年 | 107篇 |
1995年 | 98篇 |
1994年 | 100篇 |
1993年 | 86篇 |
1992年 | 81篇 |
1991年 | 67篇 |
1990年 | 68篇 |
1989年 | 45篇 |
1988年 | 46篇 |
1987年 | 56篇 |
1986年 | 50篇 |
1985年 | 55篇 |
1984年 | 48篇 |
1983年 | 42篇 |
1982年 | 52篇 |
1981年 | 41篇 |
1980年 | 43篇 |
1979年 | 48篇 |
1978年 | 53篇 |
1977年 | 67篇 |
1976年 | 57篇 |
1975年 | 28篇 |
排序方式: 共有9700条查询结果,搜索用时 15 毫秒
121.
Wayne Fisher Cathleen Piazza Michael Cataldo Robert Harrell Gretchen Jefferson Robert Conner 《Journal of applied behavior analysis》1993,26(1):23-36
Functional communication training has been reported to be a promising treatment for severe behavior problems. In this study, functional communication training alone and combined with extinction and/or punishment was evaluated for 4 clients with severe retardation, behavior problems, and communication deficits. The participants were inpatients on a hospital unit for treatment of severe behavior disorders. They received individualized interventions based on functional assessment that included reinforcement of a communication response with the same function as their destructive behavior. Results showed that for some patients, functional communication training was not sufficient to produce clinically significant reductions in destructive behavior, and the combination of training plus punishment produced the largest and most consistent reductions. 相似文献
122.
Michelle S. Bourgeois 《Journal of applied behavior analysis》1993,26(1):77-87
The effects of a prosthetic memory aid on the conversational content and social skills of dyads with dementia were evaluated. Six individuals with moderate to severe dementia served as either subject or partner in dyads during 5-min conversational probes conducted three times per week in daycare and nursing-home settings. During phases when a memory aid, consisting of personally relevant picture and sentence stimuli, was available, most subjects used their own aid to improve the quality of conversations by increasing the frequency of on-topic statements, diminishing nonproductive utterances, lengthening their conversational turn, and/or increasing the frequency of turns taken. Most partners demonstrated awareness of social discourse conventions by appropriately relinquishing conversational dominance, decreasing both content and nonproductive utterances, and increasing acknowledging or affirmative comments when subjects used memory aids. Naive judges' ratings of aided and unaided conversational samples on seven conversational dimensions reflected differences in perceptions of significant improvement as a function of the conversational discourse style of each dyad. 相似文献
123.
124.
A maximum likelihood method for latent class regression involving a censored dependent variable 总被引:1,自引:0,他引:1
The standard tobit or censored regression model is typically utilized for regression analysis when the dependent variable is censored. This model is generalized by developing a conditional mixture, maximum likelihood method for latent class censored regression. The proposed method simultaneously estimates separate regression functions and subject membership in K latent classes or groups given a censored dependent variable for a cross-section of subjects. Maximum likelihood estimates are obtained using an EM algorithm. The proposed method is illustrated via a consumer psychology application. 相似文献
125.
Schedule-induced defecation by rats during ratio and interval schedules of food reinforcement.
下载免费PDF全文
![点击此处可从《Journal of the experimental analysis of behavior》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Lever pressing in rats was maintained by continuous and intermittent schedules of food while defecation was monitored. In Experiment 1, reinforcement densities were matched across variable-ratio and variable-interval schedules for three pairs of rats. Defecation occurred in all 3 rats on the variable-ratio schedule and in all 3 rats on the yoked variable-interval schedule. In Experiment 2, fixed-ratio and fixed-interval schedules with similar reinforcement densities maintained lever pressing. Defecation occurred in 3 of 4 rats on the fixed-ratio schedule and in 4 of 4 rats on the fixed-interval schedule. Almost no defecation occurred during continuous reinforcement in either experiment. These results demonstrate that defecation may occur during both ratio and interval schedules and that the inter-reinforcement interval is more important than the behavioral requirements of the schedule in generating schedule-induced defecation. 相似文献
126.
Douglas A. Luke 《American journal of community psychology》1993,21(2):203-246
Survival analysis is a powerful and useful technique for understanding qualitative change. This article provides a practical, nontechnical introduction to the use of survival analysis for social scientists. Important issues in using survival analysis are discussed, including research design, data preparation and management, and data analysis. Attendance data from a self-helf organization are used to illustrate common survival analysis tasks such as describing the overall survival and hazard functions, examining covariate effects, and modeling the form of the hazard function over time. An appendix that discusses the strengths and weaknesses of current survival analysis computer programs is included.
Editor's note: Edward Seidman served as action editor for this article while serving as Associate Editor for Methodology.I thank William Davidson, Susan Englund, Bruce Rapkin, Kurt Ribisl, and three anonymous reviewers for their helpful comments on earlier drafts. The example data presented here were collected with the support of an NIMH grant (MH37390) awarded to Julian Rappaport and Ed Seidman. 相似文献
127.
MEHMET ESKIN 《Scandinavian journal of psychology》1993,34(3):276-281
The Suicide Probability Scale (SPS), the Perceived Social Support (PSS) from Friends (PSS-Fr) and Family (PSS-Fa) scales, and the Scale for Interpersonal Behavior (SIB) were translated into Swedish and their reliability was estimated in a university student sample. The reliability coefficients indicated that both subscales and the total scales of the SPS, PSS, and SIB possess highly adequate reliabilities. The intercorrelations among the subscales and between the subscales and the total scales were found to be highly significant. The results of the study supported the use of SPS, PSS-Fr and PSS-Fa, and the SIB as reliable methods for assessing suicide risk, perceived social support from friends and family, and assertive behavior. 相似文献
128.
A range of health behaviors was related to beliefs concerning health practices and health knowledge. A questionnaire dealing with health-related practices, health beliefs and knowledge of health risk factors was answered by 166 male and 179 female students aged 18–30 years at Stockholm University. Female students reported engaging in better health behavior than males. Beliefs about the importance of health behaviors were closely related to their frequency of occurrence. There was only a weak relationship between health behaviors and knowledge of specific health matters. It is concluded that health attitudes rather than health knowledge determine health behavior. 相似文献
129.
Marsha B. Parsons Dennis H. Reid Jerry Reynolds Merle Bumgarner 《Journal of applied behavior analysis》1990,23(2):253-258
We evaluated the effects of several choice-related variables on the work performance of adults with severe handicaps. After assessing client work preferences, three choice-related situations were presented: (a) providing clients with the opportunity to choose a work task, (b) assigning a preferred task, and (c) assigning a nonpreferred task. Results indicated that clients attended to work tasks almost twice as much when they chose their tasks and when assigned to work on preferred tasks versus when assigned to work on nonpreferred tasks. Results are discussed regarding the need to assess systematically the effects of choice-related variables. 相似文献
130.
The literature suggests that self-management treatment packages have two potential strengths for the reduction or elimination of stereotypic behavior: (a) Self-management may be used for extended periods of time in the absence of a treatment provider, and (b) self-management techniques are easily adapated and used in a wide variety of natural settings. We assessed whether students with severe autistic disabilities could learn to use a self-management treatment package to reduce their stereotypic behavior within a multiple baseline across subjects design with withdrawals. The results showed that all of the students learned to use self-management procedures to reduce greatly levels of stereotypic behavior (typically to zero), and improvement occurred for extended periods of time in new settings without the presence of a treatment provider. The results are discussed in terms of the practical value of the treatment package and in terms of the implications for understanding autism. 相似文献