全文获取类型
收费全文 | 715篇 |
免费 | 180篇 |
国内免费 | 51篇 |
出版年
2024年 | 2篇 |
2023年 | 6篇 |
2022年 | 5篇 |
2021年 | 14篇 |
2020年 | 23篇 |
2019年 | 30篇 |
2018年 | 28篇 |
2017年 | 48篇 |
2016年 | 29篇 |
2015年 | 39篇 |
2014年 | 27篇 |
2013年 | 124篇 |
2012年 | 34篇 |
2011年 | 36篇 |
2010年 | 17篇 |
2009年 | 36篇 |
2008年 | 36篇 |
2007年 | 29篇 |
2006年 | 33篇 |
2005年 | 43篇 |
2004年 | 19篇 |
2003年 | 22篇 |
2002年 | 23篇 |
2001年 | 21篇 |
2000年 | 22篇 |
1999年 | 16篇 |
1998年 | 12篇 |
1997年 | 12篇 |
1996年 | 11篇 |
1995年 | 15篇 |
1994年 | 15篇 |
1993年 | 9篇 |
1992年 | 11篇 |
1991年 | 6篇 |
1990年 | 10篇 |
1989年 | 7篇 |
1988年 | 15篇 |
1987年 | 6篇 |
1986年 | 8篇 |
1985年 | 5篇 |
1984年 | 4篇 |
1983年 | 3篇 |
1982年 | 6篇 |
1981年 | 2篇 |
1980年 | 4篇 |
1979年 | 6篇 |
1978年 | 6篇 |
1977年 | 5篇 |
1976年 | 5篇 |
1975年 | 1篇 |
排序方式: 共有946条查询结果,搜索用时 15 毫秒
191.
Factors associated with erection in adolescent sex offenders 总被引:1,自引:0,他引:1
Judith V. Becker John A. Hunter Jr. Robert M. Stein Meg S. Kaplan 《Journal of psychopathology and behavioral assessment》1989,11(4):353-362
A majority of adult child molesters report that their deviant interest began prior to the age of 18. This illustrates the need to evaluate adolescents who have molested children. Since self-report of deviant interest is rare in adolescent offenders, psychophysiologic assessment is necessary to help to determine the extent for a deviant interest pattern. The current study was designed to determine what factors are associated with erectile responding to age-inappropriate stimuli in an adolescent sex offender population. Factors studied were (a) admit/deny, (b) history of physical abuse, (c) history of sexual abuse, (d) history of nonsex arrests, and (e) incest/nonincest. The dependent variables were two pedophile indices, a relative measure of deviant to nondeviant arousal. Results indicated that history of sexual abuse was associated with more deviant erectile responding in those adolescents who had molested young boys. The possibility of adolescents modeling their own victimization is discussed. 相似文献
192.
Seth C. Kalichman Margretta Dwyer Margit C. Henderson Laura Hoffman 《Journal of psychopathology and behavioral assessment》1992,14(3):259-276
Multivariate clustering procedures were used to identify homogeneous subgroups of outpatient sex offenders against children (n=110)on the basis of the Minnesota Multiphasic Personality Inventory (MMPI). Results indicated a five-subgroup solution. Two within-normal-limits and two clinically elevated profile subgroups replicated subtypes found in previous cluster analytic studies of child sex offenders. The fifth subgroup appeared similar in MMPI profile pattern and elevation to a previously identified subtype of rapists. Discriminant analyses showed that subgroups differed along dimensions of cognitive disturbance and sexual functioning. Furthermore, levels of psychopathology corresponded with levels of sexual pathology. Results are discussed with reference to previous MMPI cluster analytic studies of sex offenders and theories of sexual aggression.Portions of this paper were presented at the meeting of the Midwestern Psychological Association, 1992, Chicago, Illinois. 相似文献
193.
Procrastination by pigeons: preference for larger, more delayed work requirements. 总被引:2,自引:2,他引:0
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)
J E Mazur 《Journal of the experimental analysis of behavior》1996,65(1):159-171
In three experiments, pigeons chose between alternatives that required the completion of a small ratio schedule early in the trial or a larger ratio schedule later in the trial. Completion of the ratio requirement did not lead to an immediate reinforcer, but simply allowed the events of the trial to continue. In Experiment 1, the ratio requirements interrupted periods in which food was delivered on a variable-time schedule. In Experiments 2 and 3, each ratio requirement was preceded and followed by a delay, and only one reinforcer was delivered, at the end of each trial. Two of the experiments used an adjusting-ratio procedure in which the ratio requirement was increased and decreased over trials so as to estimate an indifference point--a ratio size at which the two alternatives were chosen about equally often. These experiments found clear evidence for "procrastination"--the choice of a larger but more delayed response requirement. In some cases, subjects chose the more delayed ratio schedule even when it was larger than the more immediate alternative by a factor of four or more. The results suggest that as the delay to the start of a ratio requirement is increased, it has progressively less effect on choice behavior, in much the same way that delaying a positive reinforcer reduces it effect on choice. 相似文献
194.
We have explored how age at first intoxication with alcohol relates to mental health, social integration and adjustment to the adult role. The data stem from a longitudinal representative study of 2000 Norwegians. The sample was assessed at ages 19–22, 21–24 and 25–28. Among females, only early intoxication was related to young adult symptoms of poor mental health. A U-shaped association between intoxication debut and psychological problems was revealed among males, implying that both early and late beginners had more such problems than those who had followed the mainstream. These associations persisted without change over time. However, males who remained abstainers in adulthood were psychologically healthy, but they showed indications of a delayed entry into the adult role. Male late beginners were also somewhat reluctant to adopt adult role-behaviors. Thus, getting drunk for the first time in mid-adolescence seems to be an ingredient in the normal developmental process in young males. 相似文献
195.
In a broad class of item response theory (IRT) models for dichotomous items the unweighted total score has monotone likelihood ratio (MLR) in the latent trait. In this study, it is shown that for polytomous items MLR holds for the partial credit model and a trivial generalization of this model. MLR does not necessarily hold if the slopes of the item step response functions vary over items, item steps, or both. MLR holds neither for Samejima's graded response model, nor for nonparametric versions of these three polytomous models. These results are surprising in the context of Grayson's and Huynh's results on MLR for nonparametric dichotomous IRT models, and suggest that establishing stochastic ordering properties for nonparametric polytomous IRT models will be much harder.Hemker's research was supported by the Netherlands Research Council, Grant 575-67-034. Junker's research was supported in part by the National Institutes of Health, Grant CA54852, and by the National Science Foundation, Grant DMS-94.04438. 相似文献
196.
Janie K. Long PhD John J. Lawless MS Damond R. Dotson Ph.D. 《Contemporary Family Therapy》1996,18(4):589-606
The goal of this research was to develop an instrument, the Supervisory Styles Index (SSI), that would examine supervisory style. Style has been described as the way in which the personality and convictions of the supervisor are demonstrated in the supervisory relationship (Leighton, 1991). This study focuses on the interplay between supervisory style and the influence of sex and gender. The findings of this study reveal that female supervisees discern their supervisors to be more self-disclosing than do male supervisees. Implications of the findings and utilization of the index are discussed.Portions of this paper were presented at the 52nd annual conference of the American Association for Marriage and Family Therapy, Chicago, Illinois, November, 1994. 相似文献
197.
书写字体的性别差异研究 总被引:6,自引:0,他引:6
从珠海市中小学一年级至初中三年级随机选出540名学生,要求他们每个人抄一段400字左右的短文,收回抄写卷540份。40名有经验的教师,对书写者的性别做出判断,并回答一份关于判断男女笔迹的依据的问卷。结果表明:1.小学低年级男女生的字体没有明显的性别差异,到中高年级以后,性别差异才明显地表现出来。二、三年级之间,五、六年级之间是差异形成的两个加速期。2.判断者对小学低年级书写者的性别的判断不准确,主要是由于将女生的字体误判为男生的字体而造成的。3.男女生字体的差异主要表现在五个方面,即字体大小程度,字的力度、字体的刚劲度、字的工整度和字的棱角度。 相似文献
198.
199.
200.
A theory of justice for the basic structure of society may constrain though not directly govern colleges. The principle of "equal opportunity" commonly applied to jobs either does or does not apply to varsity opportunities. If it applies, it interdicts sex discrimination but, one fallacious argument notwithstanding, it states no obligation to expend resources on new teams. If it does not apply, an analogue of Rawls's difference principle may appropriately constrain inequalities between the sexes. In either case the preferences of a majority of the sex affected by any inequality are pivotal in fashioning any tenable distributive policy. Those preferences are neglected by a government policy that assimilates equal opportunity to equality of (i) the ratio of male:female varsity athletes and (ii) the ratio of male:female students. It is argued that such policy rests on affirming the consequent. Its effects include misallocations of resources and overvaluation of athletics. It is argued that what should approximately be equal is competitive access, the ratio of available positions to aspirants, for each sex. Two versions of a principle of equal competitive access are proposed, the recommended one of which pertains to teams whose net consumption of resources is positive. 相似文献