全文获取类型
收费全文 | 4505篇 |
免费 | 225篇 |
国内免费 | 3篇 |
出版年
2022年 | 35篇 |
2021年 | 36篇 |
2020年 | 76篇 |
2019年 | 112篇 |
2018年 | 146篇 |
2017年 | 124篇 |
2016年 | 134篇 |
2015年 | 105篇 |
2014年 | 117篇 |
2013年 | 467篇 |
2012年 | 233篇 |
2011年 | 251篇 |
2010年 | 146篇 |
2009年 | 140篇 |
2008年 | 188篇 |
2007年 | 201篇 |
2006年 | 153篇 |
2005年 | 164篇 |
2004年 | 152篇 |
2003年 | 151篇 |
2002年 | 141篇 |
2001年 | 85篇 |
2000年 | 79篇 |
1999年 | 71篇 |
1998年 | 76篇 |
1997年 | 51篇 |
1996年 | 56篇 |
1995年 | 48篇 |
1994年 | 46篇 |
1993年 | 43篇 |
1992年 | 39篇 |
1991年 | 67篇 |
1990年 | 43篇 |
1989年 | 45篇 |
1988年 | 37篇 |
1987年 | 37篇 |
1986年 | 35篇 |
1985年 | 36篇 |
1984年 | 25篇 |
1983年 | 27篇 |
1982年 | 35篇 |
1981年 | 39篇 |
1979年 | 31篇 |
1978年 | 30篇 |
1977年 | 29篇 |
1976年 | 30篇 |
1975年 | 30篇 |
1974年 | 25篇 |
1973年 | 28篇 |
1967年 | 27篇 |
排序方式: 共有4733条查询结果,搜索用时 15 毫秒
101.
Nick Ialongo Gail Edelsohn Lisa Werthamer-Larsson Lisa Crockett Sheppard Kellam 《Journal of abnormal child psychology》1996,24(4):445-456
We studied the course of aggressive behavior in an epidemiologically defined sample of first graders with and without comorbid anxious symptoms. Our primary purpose in doing so was to understand whether the stability of aggression in young children was attenuated or strengthened in the presence of comorbid anxiety. Previous studies of older children and adolescents had produced equivocal findings in this regard. Data on anxious symptoms were obtained through an interview of the children, whereas aggressive behavior was assessed through the use of a teacher interview and peer nominations. Assessments were performed in the fall and spring of first grade. In contrast to children classified as aggressive alone in the fall of first grade, boys and girls classified as aggressive and anxious in the fall of first grade were significantly more likely to be classified as aggressive in the spring in terms of teacher ratings and/or peer nominations of aggression. Thus our findings suggest that the link between early and later aggression may be strengthened in the presence of comorbid anxious symptoms, rather than attenuated. Future studies are needed to identify the mechanisms by which the course of aggression is influenced by the presence of comorbid anxiety.The writing of this paper was supported by the following National Institute of Mental Health grants: Epidemiologic Prevention Center for Early Risk Behavior (P50 MH38725); Periodic Outcome of Two Preventive Trials (1RO1 MH42968). The authors would like to thank the Baltimore Public City School System and the children and parents who participated in this study. 相似文献
102.
Roberta M. Lees Bernadette E. Boyle Lisa Woolfson 《Journal of Fluency Disorders》1996,21(3-4):281-287
A 15-year-old-boy was referred on account of a fluency disorder that was not thought to be stuttering. The problems of the lack of an adequate definition of cluttering are discussed along with the inherent problems of providing a wide-based assessment of this client group. Assessments were conducted on the motoric, linguistic, and intellectual abilities of this client, and the findings are discussed. 相似文献
103.
This study tested predictions concerning the associations between children's nonparental care experiences and emotion regulation. It involved 53 participants (21 girls and 32 boys) of preschool age and their mothers. The children's care experiences ranged from those who were raised exclusively at home to those who had nonparental care experience beginning in early infancy. The participants were observed in a laboratory playroom, and their mothers were asked to complete questionnaires regarding their children's care histories and their current care situations. The children with extensive nonparental care backgrounds were found to be more likely to use self-directed emotion regulation behaviors when faced with a mildly frustrating situation. In the same situation, the children who had experienced minimal nonparental care were found to be more likely to use other-directed emotion regulation behaviors. Additionally, the children who had experienced care settings with large numbers of children in each care group or who had experienced many caregiver changes were more likely to use self-directed emotion regulation behaviors, whereas those who had experienced settings with smaller care groups and fewer caregiver changes were more likely to use other-directed emotion regulation behaviors. 相似文献
104.
The available literature indicates that: (a) experiences of childhood violence are associated with mediator variables, including antisocial behaviors and depressive symptomatology, that are themselves associated with development of alcohol problems and perpetration of partner violence for men in adulthood; (b) experiences of childhood violence and, more strongly, observation of interparental violence during childhood predict perpetration of partner violence in adulthood for males; (c) presence of partner violence is associated with certain types of alcohol problems for men; and (d) both partner violence and alcohol problems are associated with marital conflict. However, available research has often excluded important moderator variables, such as history of familial and parental alcohol problems and history of parental psychiatric disorders. Based on the available research, two indirect pathways between childhood violence and adulthood problems (i.e., alcohol problems and partner violence) are proposed as guides for future research in the areas of family violence and alcohol problems for men. Further, bidirectional associations between alcohol problems and partner violence are proposed. Finally, inclusion of important moderator and mediator variables in multivariate research designs is suggested. 相似文献
105.
Jeff Miller 《Attention, perception & psychophysics》1996,58(1):65-72
The distribution of sample $\hat d's$ , although mathematically intractable, can be tabulated readily by computer. Such tabulations reveal a number of interesting properties of this distribution, including: (1) sample $\hat d's$ are biased, with an expected value that can be higher or lower than the true value, depending on the sample size, the true value itself, and the convention adopted for handling cases in which the sample $\hat d'$ is undefined; (2) the variance of $\hat d'$ also depends on the convention adopted for handling cases in which the sample $\hat d'$ is undefined and is in some cases poorly approximated by the standard approximation formula, (3) the standard formula for a confidence interval for $\hat d'$ is quite accurate with at least 50–100 trials per condition, but more accurate intervals can be obtained by direct computation with smaller samples. 相似文献
106.
107.
Doug Johnson-Greene Cheryl M. Anderson Kenneth M. Adams Henry A. Buchtel Todd Miller Michael Dehring 《Journal of clinical psychology in medical settings》1996,3(2):103-113
In a time of budgetary shortfalls in the medical industry, an aging population, and an increased emphasis on health care choices, psychologists are being called upon to administer advance medical directive programs to patients. This study reports preliminary findings from a program to assess and facilitate patients' knowledge of advance directives (ADs) by the Psychology Service at the Ann Arbor VA Medical Center. The participant pool included 243 male veteran patients admitted to medical and surgical wards at the hospital. The intervention included the use of a computer-generated prompt for consultation, which was sent to the psychology staff in response to a patient inquiry regarding ADs. It also involved an increased emphasis on the delivery of written material on ADs by the admissions clerks. The intervention appeared to result in a modest increase in patients' knowledge of advance directives. Suggestions are offered for areas that should be emphasized in future attempts to increase patients' knowledge and utilization of advance directives. 相似文献
108.
Lynn Hasher Rose T. Zacks Ellen R. Stoltzfus Michael J. Kane S. Lisa Connelly 《Psychonomic bulletin & review》1996,3(2):231-237
In two experiments, the pattern of persistence of negative priming effects across delay intervals of 500 and 2,500 msec was assessed using a within-subjects, random sequencing of delays. Neill and Valdes (1992; Neill, Valdes, Terry, & Gorfein, 1992) have argued that a within-subject experimental design is required for decay of negative priming to be seen, in contrast to results reported elsewhere (e.g., Tipper, Weaver, Cameron, Brehaut, & Bastedo, 1991) showing stable negative priming effects across delays. In neither experiment was substantial evidence of decay detected, raising questions for the notion that suppression necessarily declines across brief temporal intervals and for the assertion that episodic retrieval is the sole source of negative priming. 相似文献
109.
110.
The sex of the main character was varied in six children's stories which were then read by fourth, sixth and eighth graders. The children answered four questions about the stories. Both boys and girls responded more positively to the questions “Would you like to be (character's name?)” and “Would you like to do the things (character's name) did?” when the main character was a male. Boys preferred stories about males, and this preference increased with grade level. A preference for stories about females was marginally significant only for the older girls. Theoretical and practical implications are discussed. 相似文献